Expanding Access to Solar Power

Expanding Access to Solar Power

What if someone told you that you could save money on your electric bill by getting a small solar array that can fit on your balcony or patio? It is possible — just not in Wisconsin. At least not explicitly.

Millions of such systems have been installed in Europe, giving people the option to use solar energy to offset some of the electricity they use. Because electrical systems differ here, several manufacturers are developing comparable products for use in the U.S. Meeting electrical safety standards is one of the most important steps in making these products ready for balconies, lawns, and the like across the country.

As these products become more widely available, it will be important to make sure you purchase ones specifically designed to meet the strict criteria of UL and the National Electrical Code. Not only to make sure you’re following established rules (once they are created), but also to keep you and your home safe.

Because these approved systems are intentionally small and limited in how much they can produce, they shouldn’t need to be approved by your utility company. These smaller solar systems produce just enough electricity to power a couple of appliances, meaning all the energy they create is used immediately.

So far, existing plug-in solar kits include all the essentials someone might need to simply plug them into an electrical outlet. The attached inverter and plug are designed to shut off when unplugged, during an outage, or when a voltage adjustment is needed.

The solar panels in these kits are the same technology as those on rooftops and solar fields. The economics of purchasing these kits and seeing real savings by buying less electricity is also pretty straightforward. So what would it take to make it explicitly legal here in Wisconsin? Creating a law that sets up rules and regulations to ensure we can safely reduce our energy bills. 

This step requires legislation to allow customers to install these systems under clear guidance. Legislation will also help to create clear rules and guidelines for safe use. Model legislation is available as a starting point, and with over 20 states introducing legislation, many examples of proposals exist, including some that have already been signed into law. A Wisconsin proposal is in the works, too.

It’s exciting to see all the enthusiasm building for balcony solar in the state, but we must keep in mind that changing public policy is not a sprint, not even a marathon, but more like a triathlon. If you want to do something before our next legislative session kicks off in January, consider speaking with some Wisconsin candidates for the upcoming elections this year. Tell them you value clean, affordable energy.

Wisconsin’s Climate Youth is an Energy Wakeup Call for Wisconsin

Wisconsin’s Climate Youth is an Energy Wakeup Call for Wisconsin

Across the country, youth impacted by climate change have sued state governments on the theory that inaction in the face of the climate crisis violates their fundamental constitutional rights.

In one highly publicized case, Held v. State, 16 kids sued the State of Montana over environmental laws that shielded companies developing fossil fuel projects, forbidding the state from reviewing the full impacts of the projects’ greenhouse gas (GHG) emissions.

The youth litigants won a decisive court victory, striking down that provision of the Montana Environmental Policy Act and securing a declaration of their constitutional right to a “stable climate system.”

More recently, the Montana plaintiffs are back in court in 2026 seeking to reinforce their win and ensure Montana’s energy and environmental policy actually complies with the established right to a stable climate.

Wisconsin’s Youth Climate Case

Here in Wisconsin, the nonprofit legal advocacy group Our Children’s Trust teamed up with Midwest Environmental Advocates (MEA) to sue the state’s Public Service Commission (PSC) and the state legislature in 2025 in Dunn v. Wisconsin Public Service Commission.

In their complaint, the young plaintiffs — ranging from age 8 to 17 at the time the case was filed — challenged aspects of Wisconsin energy law that allow utilities to continue building fossil-fuel infrastructure despite the climate crisis.

The youth plaintiffs hail from a wide range of backgrounds, but they all share one tragic bond: climate change is making their lives measurably worse.

The climate crisis has forced some of their families to move, rendered many Wisconsin rivers and lakes degraded and unfit for swimming, fishing, and boating, robbed them of opportunities to engage in cultural activities like tapping maple trees for maple syrup, exposed them to a heightened risk of Lyme disease, exacerbated health issues like asthma, and led to a decline in their mental health.

Driven by these cultural, health, and economic impacts, many of these kids and young adults have dedicated themselves to climate education and activism.

But they can’t do it alone — they will need help from engaged Wisconsinites to push our legislators and courts to consider the true costs of continuing to develop more fossil fuel infrastructure when renewable energy alternatives are readily available.

The Youths’ Argument

In court, plaintiffs argued that the law prohibiting the PSC from considering the impacts of air pollution in issuing Certificates of Public Convenience and Necessity (CPCNs) to large energy projects is unconstitutional, allowing the continued development of fossil fuel projects without considering their full costs to society.

Second, the youth argued that Wisconsin’s Renewable Portfolio Standard (RPS) is unconstitutional, effectively putting a ceiling on the PSC’s ability to push utilities to supply more renewable energy.

In 2005, Wisconsin amended Act 9, setting an initial goal of 10 percent renewable energy by 2015. That goal was first met back in 2013, two years ahead of schedule. Since then, the PSC has been unable to require more renewable energy to support our statewide climate goal, or even accurately track the renewable energy portfolio of Wisconsin’s utilities. This shortcoming has led Wisconsin to fall behind in the adoption of renewable energy.

Without the ability to mandate that utilities develop more renewable energy, Wisconsin will struggle to meet the long-range 2050 goal of 100% carbon-free energy set by Governor Evers.

The plaintiffs argue that these maladies in Wisconsin law are violating their foundational rights to life and liberty, which rest on a stable climate system.

They also argue that the defendant’s inadequate response to climate change was violating Wisconsin’s Public Trust Doctrine and depriving plaintiffs of the ability to use and enjoy Wisconsin’s bountiful water resources: our many public rivers and lakes. Sadly, Wisconsin’s public waterways are increasingly degraded by extreme heat and algal blooms closely linked to climate change.

The Lower Court’s Ruling

Despite a load of evidence, the plaintiffs’ case was dismissed by the court. While the judge sympathized with the youth, acknowledging that the plaintiffs showed clear harm from climate change, they decided that this case is not fit for resolution in a courtroom.

Instead, the court said the plaintiffs’ cause is an energy policy issue that would be better addressed in the state legislature.

However, the plaintiffs are appealing that decision and fighting to bring awareness to the human impacts of the climate crisis, and to push Wisconsin to take meaningful action to mitigate climate change and protect the future of all Wisconsinites.

The High Cost of Fossil Fuels

The natural gas plants that Wisconsin utilities and power producers are currently building and proposing will operate for 30 or more years, producing a wide range of serious, negative environmental health impacts for Wisconsinites.

Natural gas and coal plants struggle to compete with solar and wind power on costs, and that’s not including the often-ignored economic and health costs of fossil fuel projects, which include dirtier air, a slew of health risks, and early death.

In 2025, WE Energies received PSC approval for two massive natural gas plants, Oak Creek and the Paris Generation Project.

While some have touted natural gas as a cleaner “bridge” fuel, analysis conducted by Healthy Climate Wisconsin and the Union of Concerned Scientists predicts that the plants will cost more than $5 billion in health impacts from particulate, sulfur, and other forms of toxic pollution over their three-decade lifespan, with impacts in Wisconsin and neighboring states like Michigan.

These new plants will particularly harm people with existing heart or respiratory issues, as well as communities that have already borne the hefty costs of fossil fuel development.

Overall, Wisconsinites will be less healthy as a result of these natural gas projects, in addition to the broader impact on climate change from burning methane — a greenhouse gas far more potent than carbon dioxide.

The roughly $2 billion WE Energies is spending developing the Oak Creek and Paris projects could have been used to build large-scale solar or wind farms that would have provided clean, reliable energy.

Wisconsin’s Clean Energy Future

With the technology we have available, there is no need for more outdated, dirty fossil fuel infrastructure in Wisconsin.

RENEW Wisconsin is fighting to put solar and wind on level ground with fossil fuels — because solar and wind power prevail when they are given a fair chance to compete in the energy market.

A brighter and attainable Wisconsin energy future powered by renewable energy would produce reliable power, create jobs, and lessen air pollution, leading to a healthier and wealthier Badger State.

A combination of rooftop, community solar, large-scale solar, energy conservation, smart demand reduction programs, and battery storage can meet all of Wisconsin’s energy needs, even with the projected increase in energy demand from data centers.

That is the future RENEW Wisconsin is fighting for.

Brian Wagenaar, a Twin Cities native, is one of RENEW’s 2026 summer law clerks. He is currently a student at the University of Wisconsin Law School and starts his second year in the program this fall. Prior to his time at UW’s Law School, Brian earned his bachelor’s in environmental policy from UW-Green Bay.

RENEW Wisconsin Summit Panel: A Timely Conversation on Siting

RENEW Wisconsin Summit Panel: A Timely Conversation on Siting

Communities across Wisconsin continue to grapple with how renewable energy projects get sited and permitted. At our 2026 RENEW Wisconsin Summit RENEW Wisconsin hosted a panel that brought together expert voices on state and local siting and permitting authority. The conversation is worth a revisit, as the industry continues to navigate this important topic.

Eric Callisto, a former Chair of the Public Service Commission of Wisconsin (PSC) and private-sector renewable energy attorney, made a clear case for why state-level oversight of large projects matters: projects that serve the regional grid are matters of statewide concern, and an independent expert agency is better positioned to evaluate energy projects than individual town boards. He was candid that without that independent oversight, the “NIMBY element” would prevent many worthy projects from being built.

Orrie Walsvik, an associate attorney at Michael Best, walked through what he called the “inverted pyramid” of clean energy regulation, from baseline zoning to the case-by-case requirements of § 66.0401 to the PSC’s comprehensive authority over 100+ Megawatt projects. His core point: local governments have been delegated administrative authority to help Wisconsin implement its renewable energy policy, not the legislative authority to decide whether that policy is welcome in their jurisdiction.

Isaac Uitenbroek, a zoning administrator with direct experience drafting and implementing solar regulations, provided an honest window into what local government staff navigate: constituent pressure, tight timelines, and the balancing act of building ordinances that meet legal requirements while giving elected officials a process they can use to address community concerns. He advised developers and applicants to communicate early, communicate often, and leave no information vacuum. His perspective reflected real experience with what happens when communities feel blindsided.

David Jakubiak, Senior Vice President of Aileron and expert on renewable energy communications, reinforced that community engagement is not a compliance checkbox but a prerequisite for project success. He pushed back on drone footage, cookie-cutter community meetings, and out-of-state project representatives and witnesses. David made the practical case for finding local champions and showing people what renewable energy actually looks like from the road, not from the sky.

The common thread of the panel discussion and audience question was a recognition that Wisconsin is navigating a genuine policy contest, one requiring developers, lawyers, and local governments to work together to find a workable path that recognizes community concerns and appreciates the local benefits of renewable energy development.

RENEW Wisconsin’s 2026 Clean Energy Honor Roll

RENEW Wisconsin’s 2026 Clean Energy Honor Roll

RENEW Wisconsin selected 5 projects for this year’s Honor Roll. These projects and the organizations involved in them demonstrate leadership, ambition, and climate awareness in their design and use of clean energy.

Winding Rivers Solar Library Program

Middleton-Cross Plains School District

Sheboygan Lakefront Solar Roof

Eland Door County Solar Group Buy

Menasha Maplewood Middle & Intermediate School

Action Alert: Submit Comments in Support of Dawn Break Solar

Action Alert: Submit Comments in Support of Dawn Break Solar

Public comments are open now through June 11 for Dawn Break Solar, a 180 Megawatt (MW) solar project paired with a 180 MW battery energy storage system. If approved, the solar project will be located in Waushara County and is planned for completion in 2029. Projects like this have a wide range of local and statewide benefits. Show your support for this project and tell the Public Service Commission of Wisconsin (PSC) why you support the approval of a vital solar project in Wisconsin!

You can use some of the listed benefits below to help you craft your message.

Dawn Break Solar isn’t just about the clean energy it will produce. The 180 MW facility in Waushara County has many benefits:

Economic Growth: Dawn Break Solar is expected to create construction jobs, as well as several long-term local jobs for operations and maintenance. Landowners will also benefit from consistent lease payments during the 35-year lifespan of the project.

Community Benefits: Once in service, Dawn Break Solar will contribute more than $31.5 million in utility-aid payments. Local governments will receive $900,000 annually, with $510,000 for Waushara County and $390,000 for the Towns of Oasis, Plainfield, Deerfield, and Hancock.

Emissions Reductions: Dawn Break Solar will reduce emissions from energy production by about 600 million pounds of CO2 in the first year of operations. In terms of greenhouse gas emissions, this is the equivalent of taking more than 59,100 vehicles off the road for a full year. Additionally, non-GHG emissions reductions will result in health, economic, and environmental benefits. Wisconsin can expect more than $1.3 million in economic benefits associated with public health improvements in Dawn Break Solar’s first year of operations alone.

Submit your comments today and tell the PSC you support the approval of Dawn Break Solar. Feel free to use some of the bullet points above to craft your own unique message.

Utilities Ramping Up Solar Power Build-Out

Utilities Ramping Up Solar Power Build-Out

But their anticipated output would not be sufficient to serve data center projects in the construction pipeline

*Guest Blog by Michael Vickerman—RENEW Wisconsin Board Member

Construction of large solar power plants in Wisconsin will accelerate throughout the decade, thanks to a series of regulatory approvals handed down over the past 12 months. Indeed, by all appearances, solar power will dominate utility investment in new sources of electric power for the foreseeable future.

In March 2026 alone, the Public Service Commission of Wisconsin (PSC) approved utility requests to acquire three solar projects—two in Columbia County and one in Rock County—totaling 315 megawatts (MW). When energized over the next two years, these three plants will generate more than 600,000 megawatt-hours of zero-emission electricity annually to customers. That amounts to 0.9% of electricity consumption in the Badger State. 

As shown in Table 1 below, WEC Energy and Madison Gas & Electric will add 1.265 gigawatts, or 1,265 MW, of solar power to their generation fleets over the next three years. Construction is well underway at the Koshkonong and High Noon project sites, and ground will be broken this year on the other solar plants listed in the table.

Construction is also proceeding on a 250 MW solar plant in central Wisconsin owned by Minneapolis-based Geronimo Energy. Anticipated to be placed in service later this year, the Portage Solar plant will produce electricity for the wholesale market and sell the renewable energy credits (RECs) from that generation to Microsoft, which will soon complete construction on a hyperscale data center in Racine County. When activated later this year, Microsoft’s facility will become the largest consumer of electricity in the entire state, with a baseline demand of approximately 500 MW. Microsoft will purchase all of the RECs produced by Portage Solar to offset a portion of that facility’s electricity usage. 

Utility-owned solar generating plants often come paired with battery energy storage systems (BESS) placed within the project boundaries. These installations can store up to four hours of electricity at the battery’s rated capacity. 

At the Koshkonong project, for example, the battery system is designed to accept as much as 660 MWh of electricity generated onsite. These BESS units will enable grid operators to discharge stored electricity directly into the transmission system when demand peaks later in the afternoon and evening. 

In just a handful of years, solar has emerged as the fastest-growing in-state source of electric power, and its contribution to electricity supplies now surpasses wind and hydro combined (see Table 2). Accounting for 6.6% of Wisconsin-generated electricity in 2025, solar generation could reach the 10% threshold by 2030.

Will solar growth be large enough to offset anticipated load growth driven by hyperscale data centers? 

As impressive as solar’s growth was in 2025, it wasn’t large enough to fully offset the increase in electricity consumption that occurred that year. The other generation resource that saw a significant increase in output from 2024 was coal, whose rise came at the expense of fossil methane. Factoring in other hyperscale data centers now under construction, it will be a challenge to offset rising electricity sales with new solar generation.

As applied to retail electricity customers, the term “capacity factor” is a measure of their actual electrical consumption in a year divided by its peak demand multiplied by 8,760, the number of hours in a year. The consensus estimate of a hyperscale data center’s capacity factor falls in the 75% to 80% range. 

Compared with other customer types, hyperscale data centers impose an unprecedented level of demand on the electric grids that serve them, due to the following reasons.

  • Massive scale of operations serving millions of users; 
  • Expansion of AI use is driving the need for high-density computing power;
  • Energy-intensive cooling systems; and
  • Always-on operations requiring uninterruptible electrical service.

With the above in mind, let’s estimate the power consumption from Microsoft’s Mt. Pleasant campus that will commence operations later this year. If we assume a peak load of 500 MW and a capacity factor of 75 to 80%, electricity consumption from this particular entity would range from 3.3 to 3.5 million MWh per year, or 5% of the electricity sales recorded in the entire state of Wisconsin last year

It would take six solar plants the size of Koshkonong–1,800 MW in total–to offset, on a MWh by MWh basis, the anticipated consumption from just the Mt. Pleasant data center alone. When the two Beaver Dam and the Port Washington data center projects are brought into the picture, the number of Koshkonong-size projects needed to offset all four hyperscalers in the pipeline would exceed 20. 

Given that, it’s fair to conclude that the data center build-out will elevate greenhouse gas emissions from Wisconsin’s electric power industry even with a robust expansion of in-state solar power. Unless something changes on the ground, this worrisome outcome, and all the unpleasant environmental and economic consequences that it will amplify, is quite literally baked into our future.