Advocating strategies for reducing greenhouse gas emissions to a level supportive of a livable climate.

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Help Ensure Xcel Customers Don’t Pay the Bill to Power Data Centers

On August 25, the Colorado Public Utilities Commission (PUC) is holding a hearing on Xcel Energy’s proposed Large Load Tariff filing (Docket No. 26AL-0137E).

A large-load tariff would create specific terms, guardrails, and pricing for high-demand energy projects such as hyperscale data centers. The goal is to protect ratepayers from footing the bill for new infrastructure and generation needed to serve large-load customers.

Xcel’s proposal is a step in the right direction, but improvements to the proposal are needed to better protect ratepayers and keep Colorado on track to meet its emissions-reduction targets.

Your voice makes a huge difference in ensuring data centers pay their fair share and are incentivized to use clean energy sources. Show the PUC that this matters to you by registering to speak at the hearing or submitting written testimony.


Our partners have put together a public comment toolkit https://docs.google.com/document/d/1zbOUZfGGwgpHpZb3fnKmZ-Qt9NcHHic6WYDd2o0a2G8/edit?tab=t.0 for you to use that highlights background information, talking points, tips, and guidance on submitting comments.

The PUC has scheduled two virtual public comment hearings.
August 25, 4-6 p.m. – Register Here https://us06web.zoom.us/meeting/register/fE2fklEgRM6ob9oPmLGRGQ#/registration
October 20, 4-6 p.m. – Register Here https://us06web.zoom.us/meeting/register/V_t_flIIQf6tFMgO4aO4Rw#/registration

To request Spanish or ASL for either meeting, please contact Megan.Castle@state.co.us.

You can also submit comments in one of the following ways:
• By Form on the PUC website https://docs.google.com/forms/d/e/1FAIpQLSclWDeNS2FCh0NdEijNU4igpUKqRZvTIYwZ8XSA2YYx3LF6qA/viewform
• By Email directly to the PUC. Send to dora_puc_website@state.co.us
• By phone by calling 303-869-3490
• By mail to the Commission’s offices at:

Colorado Public Utilities Commission
1560 Broadway
Suite 250
Denver, CO 80202

For all comments, please be sure to reference “Xcel Large Load Tariff” or “Docket No. 26AL-0137E.” See public comment toolkit for more details.

Unchecked data center development is one of the biggest threats to Colorado’s renewable energy and emissions-reduction targets. Thank you for making your voice heard at such a critical moment!

CCLC Hyperscale Data Center Policy Goals

Posted on July 17th, 2026

The Colorado Coalition for a Livable Climate recently sent the following statement to the sponsor of HB26-102 laying out our hyperscale data center (HDC) policy goals for Colorado:

Colorado Coalition for a Livable Climate Hyperscale Data Center Policy Goals

Addressing SB26-102 as introduced,

and the proposed amended “strikebelow” version

Overview of Position

A statewide moratorium on hyperscale data centers (HDCs) must be adopted to protect Colorado’s climate, health, environment, and democratic principles. Colorado should adopt a statewide moratorium on hyperscale data centers (HDCs)[1] until a comprehensive, enforceable, science-based regulatory structure is established that protects:

  1. Colorado’s greenhouse gas (GHG) pollution reduction climate goals
  2. Public access to water supplies
  3. Water quality and quantity
  4. Regional and local air quality
  5. Public health (from air and water pollution, noise, and light)
  6. Wastewater management systems
  7. Solid waste management systems
  8. Community rights to modify, accept, deny or cease projects/operations
  9. Green spaces/ecosystems
  10. Public transparency and accountability

Until Colorado adopts a statewide moratorium, we encourage every local government to adopt their own HDC development moratorium or ban.

No state or local tax incentives should be provided for HDCs under current conditions.

No “Essential Infrastructure” status should be conferred on HDCs.

Conditions for Lifting the Moratorium

The requirements listed below must be enforced by appropriately-designated and adequately funded state and local agency approval, monitoring, and enforcement for the construction and operation of all HDCs.

Energy sources and impacts are regulated adequately: HDCs must either:

  1. Purchase their power from existing utilities, without
    1. compromising reliable and affordable access to service by other utility customers or
    1. impeding progress toward meeting Colorado’s greenhouse gas reduction goals of 80% reduction in GHG emissions from the electric generation sector by 2030.

OR

  • Build their own 100% renewable (fuel-free) energy sources. Regarding the strikebelow version of SB26-102, the term “clean” must be changed back to “renewable” as in the introduced version of the bill to indicate that no private nuclear, gas or other fossil fuel facilities may be operated by or for HDCs.

Consumer/ ratepayer protections: SB26-102 provisions should apply to HDCs. Large load tariff must require HDCs to cover full cost of service and grid infrastructure, without economic development rates from investor-owned utilities

Water supply and quality protections:

  1. In addition to SB26-102 strikebelow provisions, HDC sector-wide annual water-use limits must be established based on the available and predicted local supplies.
  2. Residences, community service providers, and essential businesses must be given priority for water access over HDCs.
  3. At minimum, monitoring and full disclosure of water pollutants and discharges must be required. Discharges of per- and polyfluoroalkyl substances (PFAs) chemicals must be prohibited.
  4. Significant non-negotiable minimum violation penalties must apply in all circumstances.

Local Air Quality and Backup Generator restrictions:

  1. Adopt SB26-102 provisions for emergency-use only, testing limits, ozone day restriction, and preference for battery backup must apply to all residential areas, not just disproportionately impacted communities (DICs).
  2. Diesel backup generators prohibited in DICs.
  3. EPA Tier 4 pollution controls must be implemented statewide
  4. Mandate and adequately fund Colorado Department of Public Health and Environment (CDPHE) enforcement of provisions, with non-negotiable fines sufficient to deter violations.
  5. Review and revise current Air Pollution Control Division (APCD) air quality permit pollution limits for industrial facilities to ensure that permitting for HDCs in Colorado does not adversely impact local air quality anywhere in the state.

Community engagement/public process

  1. Adopt SB26-102 provisions for public meetings before permit application with smaller threshold (≥15 MW); translated materials; 30-day notice should apply.
  2. A baseline community benefit agreement applies in all cases where local agreements are not secured.
  3. Frontline community organizations, including those representing local BIPOC communities, must be actively included in HDC decision-making.
  4. Community rights must be preserved to allow approval, demand for modifications, or rejection of HDC project plans.

Disproportionately impacted community protections:

  1. SB26-102 provisions for DICs for cumulative impacts analysis; third-party contractor selected by CDPHE; community benefit agreements; community benefit fund should apply.
  2. If follow-up impact analyses show harm or violations for more than 2 consecutive days, the HDC is required to cease operation until fixed.
  • Establish non-negotiable fines sufficient to deter future violations.

Local government authority:

  1. We support SB26-102 provisions for
    1. preserving local land use authority
    1. requiring public hearings regardless of zoning
    1. directing local governments to update codes
    1. local government application fees to cover cost of public hearings and soliciting and recording community input
  2. We support original SB26-102 provisions for the state to develop model codes to help smaller jurisdictions that won’t necessarily have the capacity to develop their own land use codes.
  3. No state-level pre-emption of local control over HDCs

Reporting and transparency:

Adopt SB26-102 provisions for annual energy and water reporting to the state; aggregated public report; legislative and PUC reporting; utility monthly interconnection reporting

Additionally the following must be required:

  1. Mandatory disclosure of clients leasing HDC capacity
  2. Non-Disclosure Agreements (NDAs) prohibited
  3. Proof of adequate insurance that accounts for HDC exposure to climate risks, and climate risk analysis and mitigation plans for HDC developers
  4. Energy and water reporting quarterly in the first 2 years, then twice per year. We note that water use, electricity use and carbon emissions are tightly linked. Optimizing one often means worsening the other. Any changes to the technologies first adopted must be subject to review so that the overall regulations continue to be met.
  5. Reporting costs paid in full or reimbursed by the HDC

Labor standards:

  1. Adopt SB26-102 provisions for prevailing wages; registered apprenticeship participation; OSHA 10 training; no pattern of wage theft or misclassification

[1] Hyperscale data centers are defined here as any facility or site hosting data centers with a combined electricity demand of 20 megawatts or more.

Ask Your Representative to Join a Member Amicus Brief in Suncor v. Boulder

Please send a message to your U.S. Congressional representative to ask them to join Senator Sheldon Whitehouse and Representative Pramila Jayapal in filing an amicus brief in the matter of Suncor v Boulder before the U.S. Supreme Court. Find your Congressional representative here. The amicus brief supports Boulder’s case against ExxonMobil and Suncor Energy and pushes back on fossil fuel producers’ attempts to preempt state law and escape accountability for deceiving the public about their role in the climate crisis. 

The brief will argue that:

  1. The Clean Air Act contains express savings clauses that preserve state litigation authorities. Suncor’s argument is incompatible with the traditional understanding that Congress must expressly preempt state action.  
  2. The Clean Air Act does not preempt state tort suits to address the harms caused by past and ongoing fossil fuel emissions.
  3. A broad application of preemption would invert traditional principles of federalism and undermine Congress’s power to choose when and how it preempts state law.

A short note is fine. Do it today!

The Exxon Summer is Hot, Dry and Burning

Chris Hoffman, Denver Post, July 15th, 2026

“Exxon Summer” is here. As forest fires, extreme heat, and health harms, it is here because climate pollution is overheating our planet. Climate change-driven droughts and extreme heat events increase the drying of organic matter in forests, the material that burns and spreads wildfire. The burning of fossil fuels is the primary cause of climate change. Petroleum producers profit while we pay the costs. To protect the people, the communities, and the nature we love, we must smoothly accelerate the current move to cleaner, more affordable and more reliable energy solutions. The saying about planting trees applies to acting on climate change as well: The best time to do it was 20 years ago; the second-best time is now. Later is too late.

Chris Hoffman, Boulder

A Renewables Milestone for Colorado

Allen Best, Denver Post, July 10th, 2026

Colorado this year achieved a milestone in its energy transition. During the first three months, according to the Energy Information Administration, 53% of all our electricity came from renewable sources. We should easily end the year above 50%.

Just 2.6% of our electricity came from renewables in 2004, almost entirely from hydroelectricity from Colorado River dams. That same year, Colorado voters adopted Amendment 37, requiring Xcel Energy and other larger utilities to get 10% of their electricity from renewables by 2015.

Xcel Energy, the state’s largest utility, fought that mandate, grumbled a bit when it passed, then set out to comply. Helping it do so were tumbling prices of wind energy. Beginning in 2010, solar prices have slid by up to 90%. Lithium-ion batteries are now enjoying similar price declines, enabling utilities to meet peak demands with more renewable energy.

The Trump administration has tried to slow the transition from fossil fuels to renewables, but with limited success. “Wind, solar and batteries are still the cheapest options in the marketplace,” said Chris Hansen, a former state legislator who is now the CEO of Durango-based La Plata Electric, a cooperative.

Colorado as of 2024 ranked only 12th in the percentage of its electricity from renewables. Lightly populated South Dakota gets 80% of its electricity from hydroelectric sources. Iowa, a former coal-heavy state, now gets 70% of its electricity from wind.

Globally, renewables are rising, too. For the first time in more than a century, they produced more electricity (34%) than coal (33%), according to Ember, a research firm. Most of that new growth came from solar.

But what about the amazing progress of Holy Cross Energy? Last year, 85% of the electricity delivered by the cooperative to members in Vail, Snowmass Village and other areas came from renewable sources. Holy Cross has been nimble but also enjoys lower-cost transmission to deliver electricity from eastern Colorado while developing local sources, too. Also, demand has been relatively flat, unlike some places along the Front Range.

“I celebrate their success, but I also know that I have to solve this puzzle for La Plata in a different way,” said Hansen, whose cooperative directors have adopted goals similar to those of Holy Cross.

“Colorado’s reaching 50% renewable energy is more important than any city or small utility in isolation,” said Ron Sinton, the founder of Sinton Instruments, a solar industry research company based in Boulder. Colorado has 22 electrical cooperatives and 29 municipal utilities in addition to Xcel and Black Hills Energy, also an investor-owned utility.

Sinton and many others working hard to decarbonize electricity warn against letting perfect electricity imperil broader decarbonization. Existing technologies can achieve maybe 90% emissions-free electricity without causing higher costs. Other answers are needed for 100%.

“We need to be careful about how, if, and when we meet that last 5% to 10%,” said KC Becker, director of the Colorado Solar and Storage Association and a former state legislator who helped craft the 2019 legislation.

But aren’t renewables causing utility bills to skyrocket? Energy Secretary Chris Wright and others make that argument. They are selective in their facts. Causes are complex. They include the increasing wildfires — at least some of them the result of global warming.

To be clear, natural gas remains a vital component of our electricity. Mark Gabriel, CEO of Brighton-based United Power, said he believes natural gas will be part of the mix for another 20 to 30 years. “It’s cost-effective. You can turn it on quickly. And it balances out what you have with solar or wind.”

Unclear is what technologies will emerge to allow Colorado to achieve 100% without great costs. New storage technologies are being tested. Xcel, for example, plans a 100-hour iron-air storage pilot at Pueblo. Nuclear has its fans but cannot compete on cost. Many utility executives believe enhanced geothermal — drilling deep to produce electricity — will become cost-competitive far sooner.

Increased demands posed by hyperscale data centers are a wild card. “Sophisticated state policy and regulation will be imperative to prevent emissions backsliding,” said Clare Valentine, senior policy advisor for Western Resource Advocates.

Even without data centers, oh so much work remains. Somewhat incredibly, we’re still building houses to be heated by burning natural gas. To meet our goals, we will have to replace those furnaces with geothermal or air-source heat pumps at some point.

In other words, after a toast with champagne to this 53% achievement, it’s back to work.

Allen Best produces Big Pivots, an e-journal about Colorado’s energy and water transitions. This column was extracted from a lengthier and more detailed article at BigPIvots.com. 

These are Challenging Times for Colorado’s Renewable Energy Laboratory

Chuck Kutscher, Westword, June 21st, 2026

It’s troubling to read reports of attacks by the Trump administration on our highly respected institutions. Colorado has been a particular target. The National Center for Atmospheric Research (NCAR), the National Renewable Energy Laboratory (NREL), and research projects at the University of Colorado Boulder and Colorado State University have all been impacted.

Late last year, NREL, which has been called the crown jewel of renewable energy research, was abruptly renamed the National Laboratory of the Rockies (NLR). The removal of renewable energy from NREL’s name was extremely disappointing to me because supporting the transition to clean, renewable energy was our main laboratory mission during my 40-year NREL career, and we have begun to reap the many benefits of that ongoing work. Although government labs are accustomed to dealing with changing political directives, the current administration’s efforts to support the fossil fuel industry come at a terrible time, because they are robbing momentum from our nation’s transition to low-cost solar and wind energy. 

Clean Energy Under Attack

During the 2024 presidential race, candidate Donald Trump was upfront about his intention to support the fossil fuel industry, and referred to “drill, baby, drill” as his energy policy. In a meeting with fossil fuel executives, “Trump’s response stunned several of the executives in the room,” the Washington Post reported. He said they should raise a billion dollars to return him to the White House, and he vowed to immediately reverse President Joe Biden’s environmental policies.

Before he became president, Trump sued to stop an offshore wind farm that would be visible from his golf course in Scotland; the case made it all the way to the UK Supreme Court, which unanimously ruled against him. As president, he repeatedly claimed that wind turbines kill whales and cause cancer, neither of which is true. More recently, following legal defeats of its efforts to stop wind projects, the Trump administration has paid offshore wind developers $2 billion of taxpayer money to abandon sorely needed projects, which will result in the loss of thousands of jobs. 

Given President Trump’s disdain for renewable energy and his support for the fossil fuel industry, it did not come as a complete surprise that he chose a Denver oil and gas chief executive, Chris Wright, as his Secretary of Energy. In an article in The Economist titled, “Climate change is a by-product of progress, not an existential crisis, says Trump’s energy czar,” Wright referred to “so-called renewables” and declared that “there is no such thing as clean or dirty energy.”

So it was not a total shock when “renewable energy” was officially removed from NREL’s name. But while it is common for DOE national labs to be named after their location, NREL staff had always been proud of the fact that the laboratory mission appeared right in the lab’s name. In fact, the clean energy mission is what attracted topnotch scientists and engineers to NREL. 

In an editorial about the name change, the Denver Gazette reported that “Wright embraces a critical, all-of-the-above approach.” According to the non-partisan Environmental Working Group, the term “all of the above,” which provides coverage for the continued burning of fossil fuels, apparently originated with lobbyists at the American Petroleum Institute more than 20 years ago. It is a strategy for keeping fossil fuels in the energy mix when the scientific community is telling us clearly that we need to get off fossil fuels as quickly as possible. Politico reported that, in true Orwellian fashion, the Department of Energy distributed a long list of terms that DOE staff and contractors are directed to avoid. These include “climate change,” “green,” “emissions,” “energy transition” and, not surprisingly, “‘clean’ or ‘dirty’ energy,” among many others.

Obviously, the “all of the above” approach is a major departure for a laboratory that has been a world leader in renewable energy research. “Since its renaming last December, the lab’s press releases have almost entirely omitted wind and solar in favor of topics like data centers and grid resilience,” Colorado Public Radio reported in an article that noted the lab was recently ordered to remove five of its wind turbines.

The change in mission, together with delays in the funds that DOE is sending to the lab, have resulted in layoffs of 248 employees to date. In addition, many highly talented NREL staff have left on their own and found other jobs, although the exact numbers have not been publicized. The Trump administration’s fiscal year 2027 budget request (FY27 begins on October 1, 2026) shows a 52% budget cut for the lab. Congress determines the final budget, and Congress has often come to the rescue after executive branch attempts to cut clean energy funds, but appropriated research funds have not been flowing from the DOE as they should. As a result, laboratory funding remains highly uncertain.

Renewable Energy’s Crown Jewel: A Historical Perspective

It was back in March 1977 that the federal government announced the exciting news that Colorado had won its bid to host the Solar Energy Research Institute, the laboratory that would eventually become NREL, in Golden. SERI was the Jimmy Carter administration’s response to the 1970s oil shock. Back then, Denver was still called a cow town, thanks to its history as a livestock hub and its annual hosting of the National Western Stock Show. The Denver Broncos had yet to appear in a Super Bowl, and the metro Denver population was about one-third the size of what it is today. For many Coloradans, SERI was a big deal.

The institute officially opened in July 1977 and began hiring in earnest later that year. I started on November 13, 1978, as one of the first 500 employees. I can recall a big map on the wall in the small human resources office where the office manager had proudly stuck a red pin to indicate where each employee hailed from. The red pins spread far and wide all over that map, showing how Golden, Colorado, had suddenly become a magnet attracting scientists, engineers, architects and other professionals from all over the world. 

Starting an institute from scratch meant there were growing pains, but people were excited about the potential for renewable energy, and staff enthusiasm for the mission was sky-high. We had a steady stream of visitors: politicians, celebrities, inventors, entrepreneurs and others. The institute’s research covered the broad range of renewable energy sources, as well as energy efficiency. Solar thermal energy, biofuels, building efficiency and wind energy were key early areas of research. But from its very first days, the greatest focus was on advancing solar photovoltaics, or PV: the direct conversion of solar energy to electricity. That technology, first developed in the U.S. at Bell Labs in 1954, was prohibitively expensive in the early days of SERI, but there was an unwavering belief that it would someday become a major player.

As a government-funded laboratory, SERI’s well-being was always dependent on the whims of politics. That became painfully clear when the Ronald Reagan administration took office in 1981, SERI’s fifth year. At that time, SERI was still housed in leased office space with no permanent buildings and only a few outdoor experiments. SERI was in serious danger of being shut down completely — although I, along with most of the staff, did not know that then. It was only through the efforts of key Jefferson County businessmen like Joe Coors and Chuck Stevinson, who understood SERI’s value to the local economy, that SERI was saved from that worst fate. However, in June 1981, then-SERI director and environmental visionary Denis Hayes was fired, and not long after, approximately half the staff were laid off. The layoff especially affected people working on technology demonstration activities. The Reagan administration’s directive was that SERI would focus solely on “long-term, high-risk R&D” that would not put government-funded work in conflict with industry.

The 1981 layoff was a huge blow to staff morale, but while SERI’s budget was under pressure throughout the 1980s, we made good progress on long-term research. The outlook improved greatly during the George H.W. Bush administration. Just a few months prior to Bush’s election, on a hot June afternoon in 1988, Dr. James Hansen, then director of NASA’s Goddard Institute for Space Studies, gave landmark testimony to the U.S. Senate presenting scientific evidence that our burning of fossil fuels was dangerously heating the planet. That same year, the United Nations established the Intergovernmental Panel on Climate Change, or IPCC, to provide scientific assessments of the changing climate. 

In 1990, President Bush convened a White House conference on global warming. The following year, on September 16, 1991, he elevated SERI to the status of a DOE national laboratory: the National Renewable Energy Laboratory. For an institute established to pursue U.S. energy independence from foreign oil, the emergence of climate change as a global issue gave the lab even greater significance.

From 1991 through 2024, despite political ups and downs, NREL generally grew and benefited from the support of members of Congress who saw the value of continued clean energy research and often provided funding that greatly exceeded presidential requests. The Biden administration stood out as the most forward-thinking in understanding and addressing the climate change issue. This was exemplified by the strong clean energy measures in the Inflation Reduction Act and the Bipartisan Infrastructure Law, and NREL was a beneficiary of that clean energy focus.

A Track Record of Achievements

Over nearly a half-century, SERI/NREL achieved countless advances in renewable energy and energy efficiency. It set the standard for measuring the performance of solar photovoltaic cells, and researchers from around the world reference its continuously updated research cell efficiency chart. It also worked on manufacturing advances that have helped solar energy achieve dramatic cost reductions. NREL was a pioneer in the development of zero energy buildings that produce enough on-site solar electricity to make up for any fossil fuel energy they consume. This concept, along with energy performance-based contracting that established a specific energy goal early in the design-build process, was exemplified by the lab’s award-winning main office building, the net zero-energy Research Support Facility.

NREL contributions in wind resource assessment, turbine blade design, gearbox reliability and wind farm design have helped make wind energy a major contributor to America’s electricity needs. Advances made in the critical thermal management of lithium-ion batteries have supported the growth of safe, reliable and affordable electric vehicles. Biomass research improved the performance and reduced the carbon footprint of biofuels and laid the groundwork for today’s development of sustainable aviation fuels. NREL’s Energy Systems Integration Facility (ESIF) pioneered “hardware in the loop” methods to combine hardware testing with detailed electric grid modeling to show how variable renewable energy sources, supported by battery storage and the control of electricity demand, can reliably power electric grids. 

NREL has led the development of a wide range of computer models that are used by energy designers all over the world. Want to size a rooftop solar array? Download the free PVWatts.  Want a new or existing commercial building to achieve high energy efficiency? OpenStudio is a tool for that, and BEopt will do the same thing for your home.  The System Advisor Model, or SAM, allows for the design of wind farms and many other renewable energy systems. Other computer tools developed at NREL, such as ReEDS and HOMER, allow for the modeling of renewable energy systems to power electric grids and microgrids. As the energy transition continues to evolve, NREL’s Annual Technology Baseline is the go-to source for the latest cost and performance data covering the full range of emerging energy technologies. 

The Clean Energy Transition May Be Slowed, But It Cannot Be Stopped

At a time when NREL’s renewable energy contributions are more important than ever, the lab has found itself facing the greatest challenges to its mission and funding since the layoffs in 1981. Despite the Trump administration’s efforts to bolster fossil fuels, renewable energy technologies are now successfully replacing them. Thanks to the work done not only by NREL but by laboratories, universities and manufacturers around the world, solar and wind now provide the lowest-cost electricity. In addition, they do not require cooling water, unlike most fossil fuel and nuclear power plants. The International Energy Agency has declared solar PV to be the cheapest source of new electricity generation in most parts of the world.

At a time when affordability is foremost in the minds of Americans, doesn’t it make sense to support the most affordable energy? Because of its low cost, over the past 15 years solar has gone from the smallest to the world’s largest source of electric capacity, and renewable energy was named the 2025 Breakthrough of the Year by the prestigious journal Science. 

According to the Energy Information Administration, the planned U.S. utility-scale electric capacity additions for 2026 are solar (51%), battery storage (28%), wind (14%) and natural gas (7%), which are similar to last year. Low-cost solar and wind have pushed new coal out of the picture and have far surpassed natural gas as the major sources of new electricity generation. In terms of the total amount of grid electricity generated, utility-scale solar and wind now provide 17% of U.S. electricity (which will soon surpass nuclear at 18%) and 30% of EU electricity (already surpassing EU fossil fuel generation at 29%).

As a result of dramatic improvements in battery performance and costs, variable renewable energy systems are now being designed to provide power 24 hours per day. Google will power a new data center in Minnesota with solar, wind and long-duration batteries. At the same time, the emergence of highly efficient battery-electric vehicles is threatening the oil business by displacing gasoline and diesel fuel, which together account for about half of U.S. oil use. 

Coloradans can be proud of the leadership role our state has played in the clean energy transition. NCAR and NOAA in Boulder have been international leaders in the climate science behind the transition, and NREL has been the world leader in the research, development and deployment of clean energy solutions. Colorado citizens have also played an important role. Back in 2004, Coloradans passed Amendment 37, the first citizens-initiated ballot measure in the nation to require utilities to provide 10% of their electricity from renewable energy. Thanks to the Colorado Legislature upping that requirement several times since, Xcel Energy, the largest utility in Colorado, is on track to generate 81% of its electricity from solar and wind in the next four years. And last year, Colorado ranked number one in the nation for the percent of new car sales that are EVs (counting both battery-electric vehicles and plug-in hybrids), reaching 32.4%. 

Why Deploying Solutions to Climate Change Must Be a National Priority

The science of climate change has been under intense attack by the current administration. Energy Secretary Wright picked five climate change contrarians to hastily produce a DOE report casting doubt on the science. That report was thoroughly refuted by a group of more than 85 scientists and even by scientists within DOE itself. Trump’s Environmental Protection Agency rescinded the 2009 EPA “endangerment finding” regarding the health hazards of greenhouse gas emissions, making it harder to regulate those emissions. His director of the Office of Management and Budget, Russell Vought, has been called the chief architect of the Heritage Foundation’s infamous Project 2025, which calls for the administration to “end climate policy fanaticism.” Vought directed the National Science Foundation to break up and spin off NCAR, which is widely recognized as the world’s premier laboratory for climate and weather modeling.

While today’s energy transition is driven mainly by its favorable economics, its greatest value is in addressing climate change, so it is important to understand why the administration’s positions on climate change are wrong. Ever since the first climate science conference was held in Boulder in 1965 (when the iconic NCAR campus was then under construction), the scientific community has exhaustively documented the fact that by burning fossil fuels and increasing the amount of infrared-absorbing carbon dioxide in the atmosphere by over 50%, the Earth has rapidly heated by an average of about 2.5 degrees Fahrenheit — at a time when the Earth should be in a natural cooling period. The burning of fossil fuels has moved us dangerously outside of the steady climate of the last 10,000 years that allowed human civilization to develop. 

In addition, this man-made heating is distributed very unevenly over the Earth’s surface (e.g., the Arctic has warmed much more than the Equator), resulting in changing weather patterns. Until additional government data collection was stopped by the administration, NOAA kept a record for decades of the dramatic increase in the number of inflation-adjusted billion-dollar disaster events occurring in the U.S. Scientific “attribution studies” of almost 1,000 extreme weather events around the world have concluded that 77% of them were made more likely or more severe because of manmade climate change. 

Climate change clearly played a role in the most destructive wildfire in Colorado history, the Marshall Fire of December 30, 2021, which destroyed about 1,000 homes and took the lives of two people as well as a thousand family pets. A new study published in the journal Nature has estimated that U.S. carbon dioxide emissions over the past three decades have caused $10 trillion in global climate damage. The climate change crisis has been purposely made into a political football, but it is grounded in decades of peer-reviewed science, and no amount of politics or disinformation can change the scientific facts.

Those who question climate change often argue that fossil fuels have given the world great productivity and raised populations out of poverty. That is absolutely true, and that industry can be justifiably proud of what fossil fuels have given us. But there are countless cases of the world discovering that things that benefited society also caused negative impacts that had to be addressed. Examples are CFC refrigerants, lead in gasoline, DDT insecticide and asbestos. We have long recognized air pollution and its related healthcare costs as consequences of burning fossil fuels, and we now have decades of incontrovertible scientific evidence that these fuels are heating the planet, raising sea levels, driving extreme weather events, and increasing world migration, including from the northern triangle of Central America to our southern border. The good news is that fossil fuels — the root cause of climate change — can finally be replaced by today’s low-cost renewable energy and batteries, and those damaging impacts can now be avoided.

The Other Reason Why Burning Fossil Fuels Makes No Sense

Coal, oil and natural gas are finite resources. While it is clear that they will eventually run out, estimates of when that will happen depend on the assumed rates of energy growth and the usage of those resources. Generally, oil and gas are expected to run out within about the next 50 years, whereas coal reserves could potentially last into the next century. In sharp contrast, solar and wind are properly called renewable energy resources because they are continually replenished by nature. One study conservatively estimated that the annual practical amount of solar energy that can be utilized is more than ten times the annual amount of primary energy consumed in the world. And only a small fraction of that primary energy needs to be replaced, because renewable electricity and electrification are much more efficient than burning fossil fuels, which produce large amounts of waste heat. 

Whenever we consume the Earth’s finite resources, we must consider the impact on future generations. National Geographic’s June 2004 cover story, “The End of Cheap Oil,” featured a two-page color photograph of an American family in their front yard amidst hundreds of petroleum-based products from their home. There was a time when fossil fuel reserves seemed enormous compared to the world population, a time when fossil fuels provided the cheapest source of energy. Today, with a world population of 8.3 billion people consuming dwindling fossil fuel reserves, and with solar and wind now the lowest-cost energy sources, burning up our remaining fossil fuels that can provide future generations with countless recyclable petroleum-based products is irresponsible.

Putting Those Clean, Low-Cost Renewables to Work: The Age of Electrification

Secretary Wright has argued that today’s solar and wind technologies provide electricity, but electricity accounts for just one-fifth of global primary energy consumption, and only a fraction of that primary energy needs to be replaced.  Furthermore, the world is taking advantage of the growing amount of low-cost renewable electricity by rapidly electrifying end uses. In fact, according to analysis by the Ember think tank, electricity has overtaken oil as the largest supplier of useful energy delivered (after accounting for energy losses). 

Electrification powered by renewable energy is bringing with it enormous boosts in efficiency. A battery-electric vehicle requires about one-third the energy of a gasoline vehicle to send the same amount of power to the wheels. And heating a home with an electric heat pump uses between one-fourth and one-third as much energy as a gas or oil furnace. 

Why Are We Letting China Leave Us in the Dust?

Supporting the clean energy transition is not only critical for addressing climate change and air pollution, it is also vital to U.S. leadership and our economic standing in the world. Since the end of World War II, the United States has been the nation the world has looked up to for leadership. On October 4, 1957, when the Soviet Union launched Sputnik, the world’s first artificial satellite, a shockwave rippled throughout American society. The U.S. responded with an unprecedented national effort to grow its scientific and technological capability. In the space race that followed, we not only beat the Soviet Union to the moon, but we also generated countless spinoffs that established the U.S. as the world leader in technology. Today, China has emerged as the undisputed world leader in the clean energy revolution. Instead of recognizing this as another Sputnik moment and rising to the challenge, however, we are turning back to 20th-century energy technologies.

China has rapidly expanded its manufacturing economy from its traditional pillars of clothing, appliances and furniture to solar panels, wind turbines, electric vehicles and batteries. According to Science, China “makes 80% of the world’s solar cells, 70% of its wind turbines, and 70% of its lithium batteries, at prices no competitor can match.” Global Energy Monitor reported that in 2025, China accounted for 75% of the solar and wind projects  being constructed globally, compared to only 6% in the U.S. Last year, China installed 315 gigawatts of solar energy, compared to only 43 gigawatts in the U.S. 

China is also rapidly electrifying its energy end uses, and many observers are calling China the world’s first “electrostate,” signaling a marked departure from the 20th-century world of petrostates. Based on the most recent data, 31% of new car sales in China are BEVs compared to 19% in the EU and 7% in the U.S. And China is selling its electric vehicles around the world. For example, Chinese vehicles now account for about 70% of the electric vehicle market in Mexico. The CEOs of American automobile companies have been shocked by how far ahead of us the Chinese are in manufacturing low-cost, long-range battery-electric cars and trucks, along with an extensive high-voltage charging network to power them. The Chinese automobile industry is a serious threat to the sales of American vehicles in Europe and elsewhere. The use of tariffs to keep Chinese EVs out of the U.S., along with the elimination of EV tax credits in an effort to protect oil and automotive industry profits, will wind up making us uncompetitive in the global vehicle market. 

China’s lead in the clean energy transition gives it multiple benefits. As we Americans pay Saudi Arabia for its oil, the Saudis are investing billions of those dollars in Chinese solar technology. Chinese exports of solar, wind, battery and EV technologies have also served as a source of global soft power, and they are filling the vacuum left by the Trump administration’s closing of USAID. While the concept of a Green New Deal has been mocked as the “Green New Scam” in our country, China has expanded its Belt and Road Initiative into the Green BRI, which exports its renewable technology around the world. As just one example, in the aftermath of the civil war in Syria that decimated that country’s electric grid, many citizens who had to rely on expensive electricity from diesel generators are now powering their homes with low-cost Chinese solar panels coupled to car batteries.

Making America an Energy Leader Again

NLR is a U.S. Department of Energy laboratory, and so it will continue to follow DOE directions, as it always has. But it is the renewable energy knowledge and expertise that NREL developed over nearly half a century that we should be preserving if the U.S. is to meet the challenge of competing against China in the 21st-century clean energy transition. For that to happen, it will need strong support from the public and from Congress, especially the Colorado delegation. 

Ironically, at the same time the Trump administration is opposing renewable energy, its war with Iran awakened the world to the reality that continuing to rely on fossil fuels is far too risky and too costly. Solar and wind energy are available around the world; they do not have to pass through the Strait of Hormuz. Here, too, China is benefiting. According to a recent Ember report, “Fifty countries set all-time records for Chinese solar imports in March 2026.” Besides the enormous environmental and health benefits, the transition to an efficient, clean energy economy is bringing the world true energy resource independence. 

America led the oil revolution, beginning with Edwin Drake’s first commercial oil well near Titusville, Pennsylvania, 167 years ago. It’s time for us to stop looking backward and become a leader in the new energy revolution. While the success of renewable energy means that we will avoid the worst future emissions scenario, the latest studies find that the impacts of even today’s lower carbon emissions are worse than previously believed and can be catastrophic. For example, a leading scientist who studies the Atlantic Ocean current that warms northern Europe believes a tipping point beyond which that current is destined to shut down is now “more likely than not” if we don’t take serious action to reduce emissions. 

Because climate change is primarily caused by our burning of coal, oil and natural gas, no U.S. government agency is more important for addressing the crisis than the Department of Energy. Tragically, by spending our taxpayer dollars to prop up the declining fossil fuel industry, DOE is moving our nation in exactly the opposite direction that science clearly tells us we must go. The longer it takes for us to get back on the right path, the more costly it will be to clean up the climate change damage, become competitive with China in the world energy market, and achieve a clean energy transition. 

It’s up to all of us to demand that we get back on the clean energy path. 

Dr. Chuck Kutscher spent four decades as a renewable energy researcher and manager at the National Renewable Energy Laboratory; he was the director of the Buildings and Thermal Sciences Center when he retired from NREL in July 2018. He has given many presentations on climate change solutions throughout the US and abroad and he has been involved in several climate change projects, including as lead author of the University of Colorado report, “Accelerating the US Clean Energy Transformation” and a contributing author to the 2020 Zero Carbon Action Plan by the United Nations Sustainable Development Solutions Network.

Climate Crisis is Front-Page News

Marc Alston, Denver Post, June 5th, 2026

Re: “U.N.: Next five years could smash temperature records,” May 29 news story

Banging the climate crisis drum: Last Friday, The Denver Post relegated a major U.N. climate report to Page 12. Ho-hum, the world scientific community keeps banging that old drum about the climate. No big deal. We haven’t gone off the cliff — yet.

But there is a cliff there. Scientists just don’t know when the edge — the tipping point — will be reached.

Have you noticed all the floods, droughts and temperature records we are experiencing (again) this year? Are you concerned about this being a really bad fire year? Drill-baby-drill continues as President Trump says we have to produce more oil, while the report concludes that oil and gas is the major contributor to the issue. Ho-hum.

As a committed climate activist, I plan to keep banging that old drum and supporting the rapid transition away from oil and gas to renewable energy.

— Marc Alston, Denver

Tell Congress: No Immunity for Big Oil

Please join us in signing this petition sponsored by Fossil Free Media.

As climate disasters like floods, fires, and hurricanes intensify, Big Oil companies are lobbying Congress for blanket immunity from any laws or legislation that could hold them accountable for fueling the crisis.

Join us in urging Congress to reject Big Oil’s call for immunity and to protect our right to hold fossil fuel companies accountable.

Big Oil companies knew decades ago that their fossil fuel products could cause “catastrophic” consequences, but they lied to the public to protect their profits. Now more than 1 in 4 people in the United States live in a state or community that is taking major fossil fuel companies to court to hold them accountable for this deception and a growing number of states are passing or considering Climate Superfund laws that would make polluters pay for the growing costs of climate damages.

Big Oil is turning to its allies in the Trump administration and Congress to try and secure an industry-wide “liability waiver” that could help them escape accountability and take away our right to make corporations pay when they cause harm. We must stop them.

Sign this petition to Congress to oppose giving Big Oil a “get-out-of-jail-free” card. Together we can win this fight and protect our progress.



Keep Colorado Nuclear Free – Stop HB 26-1337!

Colorado Representatives have introduced HB26-1337, a bill that would force nuclear energy on Colorado by legally mandating the development of at least one nuclear energy project by 2040.

This bill, if passed, would charge Colorado taxpayers $20 million to subsidize the development of nuclear power plants, which are being pushed by tech giants to generate power for data centers, all while threatening Colorado’s ability to provide clean water for its residents and perpetuating the creation of “sacrifice zones.”

Nuclear power is anything but “clean”; it produces radioactive waste, relies on uranium mining, and puts frontline communities and workers at risk.

If you do not want nuclear power plants to be forced on Colorado, please take the following actions to oppose this bill:

Click Here to Sign up to Testify on Wednesday 4/22!
https://sites.coleg.gov/public-testimony/sign-up-to-testify/step-1

Click Here to View the Action Toolkit & Learn More!
https://drive.google.com/file/d/1bh9vGaUGRHMCBWr4f52bE_GnE964yeeE/view

Click Here to Send a 1-Click Letter to Legislators
https://fastdemocracy.com/campaigns/cFZiKnjCE/Take-ACTION–OPPOSE-HB26-1337-Facilitating-Nuclear-Energy-Development/

Click Here to Join the Nuclear-Free CO Listserv!
https://docs.google.com/forms/d/e/1FAIpQLScg8_szjNYnDG_jIJk-8e3kDiv6jj4Ngs9A6z5uEZ7U0hgupw/viewform

Stop Bad Data Center Bill HB26-1030

The bad data center bill, HB26-1030, keeps bein postponed, but we need to make sure that nothing like it passes and that Colorado Legislators know we do NOT want our state to be sold out to data center developers!

This bill, at its core, is a giveaway to big tech; energy and water resources would be prioritized for data centers, potentially used to power AI surveillance and ICE, at the expense of Coloradans’ health, safety, tax dollars, and environment.

If you do not want to see Colorado’s resources and communities exploited for data center buildouts, take action to oppose this bill!

English and Spanish advocacy resources are available (big thanks to Conservation Colorado for providing the Spanish translation!), and thanks to Nuclear Free Colorado, Roots to Resilience, CCLC, PSR Colorado, and GreenLatinos, for supporting this toolkit! If you would like to sign on your organization to be added to the toolkit as an endorser, you can sign on and add your logo here!

Feel free to use and distribute any of the following resources: 

HB26-1030 Info & Action Toolkit English   

HB26-1030 Info & Action Toolkit Spanish  

– Downloadable social media graphics English
https://drive.google.com/drive/u/1/folders/1VPCtD-dM2pTLQXLpflJJoW5K69lfhwMp

– Downloadable social media graphics Spanish  
https://drive.google.com/drive/u/1/folders/108cdlzVUdKhoWOqSyRrLUp2tqIVKbU8J

– Downloadable half-page printable flyers English  
https://drive.google.com/file/d/1NEmblFHqbFw1qGASrvzGV2boI8lwYMQW/view

– Downloadable half-page printable flyers Spanish
https://drive.google.com/file/d/1TfutgahV8x846yWRw3wDc6zvOae4f2Pb/view

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