Our Business Members

RENEW has successfully advanced renewable energy throughout Wisconsin since 1991, and the financial support of our business members has been paramount to that success.


Invenergy drives innovation in energy. Invenergy is North America’s largest independent, privately held renewable energy provider. They capture, generate, and store power at scale to solve today’s energy challenges. Their portfolio includes wind energy, solar energy, energy storage, and natural gas projects, including Wisconsin’s Forward Wind Energy Center.

Sunvest‘s mission is to advance American energy independence by focusing on cost effective solutions for our customers, sustainable environmental stewardship, job growth and educational advancement.


Arch Electric is a full service electrical contractor and solar installer based in Plymouth, WI with offices in Milwaukee. We invest in the future by educating WI residents and businesses about a cleaner and more quiet form of energy that enhances the American economy by providing local jobs and building a more robust energy infrastructure. We custom design systems with the latest technology and focus on customer experience. We are firm believers of handshake ethics and have a diverse staff of trusted, licensed, NABCEP certified solar installers with over 100 years of combined experience. We are the solar energy experts.

EDP Renewables is a leading, global renewable energy company devoted to value creation, innovation and sustainability. They operate in markets around the globe and are continuously expanding our business to new regions, making the commitment to lead in each market as well as create value for our stakeholders and shareholders. As of 2017, EDP is building and will own and operate the 98 megawatt Quilt Block Wind Farm in southwest Wisconsin; the energy will be sold to Dairyland Power Cooperative.

Geronimo Energy, a National Grid Company, is a full-service renewable energy company headquartered in Minneapolis, Minnesota. Geronimo has developed over 2,400 megawatts of wind and solar projects that are either operational or currently under construction throughout the United States. Geronimo has a multi-gigawatt development pipeline of wind and solar projects in various stages of development throughout the United States. Geronimo provides custom solutions for utilities and corporations looking to harness renewable energy for business growth. With deep roots in agriculture, Geronimo prides itself on developing renewable energy projects that are farmer-friendly, community-driven, and beneficial for rural communities.

Savion is one of the largest utility-scale wind and solar project development companies in the U.S. Active in 26 states, Savion has developed more than 3,000 megawatts of contracted and operating wind and solar projects with a value of nearly $5 billion. This is the equivalent to power 1 million U.S. homes. Savion (previously known as Tradewind) was named the number one utility-scale wind developer in the U.S. for 2017 by the American Wind Energy Association (AWEA). The company has earned a reputation for innovation in the market, for its highly skilled and passionate team, and for its deeply held respect for the people, environment, and communities where its projects are developed.

SunPeak is a solar developer with a global scope. Whether your system is 20 kW or 20 MW, we have the capability to professionally assess feasibility, design & engineer, install, commission, and maintain the right system for you.

Sunrun is a leading national solar installation company which opened Wisconsin operations in 2017. Sunrun provides direct-ownership and loan models for customers. Nationwide, the company installs a new system every 6 minutes.


All Energy Solar is dedicated to making solar easy and affordable for homeowners and business owners. Learn more about how you can benefit from better energy at allenergysolar.com.   

Carlson Electric, LLC specializes in residential electrical, commercial electrician services, and renewable energy sources for home and business applications. Carlson Electric services customers in northern and western Wisconsin and beyond by appointment.

Endries Solar & Electric’s daily focus continues to be delivering unparalleled quality of service surpassing the expectations of our fellow Badger state residents. We are a full service electrical contractor, NABCEP certified professional solar installer of home and business solar energy & storage systems. From on-site analysis, custom system design through installation our team’s expertise is a constant throughout. Our team shares and supports RENEW Wisconsin’s passion for advancing towards Wisconsin’s clean energy goals.

ENGIE Distributed Solar provides low-cost, high performance solar and energy storage installations to clients including Fortune 500 companies, Real Estate Investment Trusts (REITs), utility cooperatives, municipalities and academic institutions. As part of Fortune 500 company Edison International (EIX), ENGIE combines deep experience and customer focus in solar with Edison’s financial scale, stability and unparalleled leadership in the electric power sector to deliver unique advantages to our customers.

Everlight Solar enables households to own their power instead of renting it from the power company. We believe that going solar should be headache and hassle-free. That’s why we supply the solar panels and take care of all the installation—for no upfront cost.

Full Spectrum Solar is a renewable energy contractor serving Madison and southern Wisconsin. We design and install solar energy systems for homeowners, small businesses, large commercial clients, governmental and non-profit organizations.

Northwind Solar specializes in the design and installation of solar electric, solar plus storage and EV charging for residential, commercial, agricultural, and governmental customers.  In 2017, Northwind transitioned into a worker-owned cooperative.  This business model strengthens Northwind by empowering its employees and allowing a democratic approach to how Northwind operates.  We believe this model benefits not only its employees, but also its clients by ensuring that their solar installer is invested in their best interests.

OneEnergy Renewables, founded in 2009, is a privately held company actively developing a significant pipeline of utility scale solar projects nationwide. Pioneers of the offsite solar project model, we specialize in pre-construction development of ground mounted solar PV projects. As a certified B-Corp, OneEnergy enthusiastically embraces and meets rigorous standards of business, social, and environmental performance, accountability, and transparency.

PV Systems, based in Amherst, is Wisconsin’s solar pioneer with 33 years of green energy and has installed over 1,000 solar systems in Wisconsin.

Ranger Power is a utility scale solar energy development company. Led by an experienced team, Ranger Power is committed to working closely with landowners and communities to bring new investment and clean energy to Wisconsin and the broader Midwest region.


All Sky Energy out of Baraboo specializes in solar PV installations for commercial and residential customers. They offer grid-connected and off-grid systems, and do ground-mounted, canopy, and roof installations.

BIOFerm Energy Systems provides anaerobic digestion technology for energy generation and waste management to North American waste operations. Committed to sustainable and economical organic waste diversion, the BIOFerm technology utilizes anaerobic digestion to harness biogas rising from fermenting organics—food waste, manure, biosolids, etc.—converting it into valuable green energy, heat, fuel, and more.

Current Electric is all about illuminating and energizing the greater Milwaukee and southeast Wisconsin communities. They work to provide possibility. Their team is powered by ‘what if’ and ‘why not’ and is dedicated to industry standard service, design, and functionality. They like to think of their team of journeymen and master electricians as superheroes fighting for the virtues of respect, quality, integrity, customer satisfaction, and a brighter world! To their team, these aren’t just a list of words—they aim to do it all, just short of arriving in a red cape!

DVO, Inc. has been a leader in environmental engineering for over 22 years, providing proven reliable solutions for farmers.

Located in beautiful Northern Wisconsin, the VS Corporation founded in 1995 on the principles that healthy clean living is essential for all life. Expanding on this fundamental belief, we now include a innovative way to offer Solar Energy to everyone, these Simple & Affordable Ready-to-Install Solar Energy Systems are… Next Energy Solution!

At Pieper Electric, our people are our power. As a full-service electrical, mechanical and automation contractor, our people are what enable us to stand out in our industry. They’re the reason for our success. Founded on the principle that every person should strive to first and foremost be a servant leader, we work tirelessly to keep our people safe, enlighten and stimulate their minds, and teach them how to be good stewards of the community in a genuinely serving way. From these efforts, we’ve grown into a truly unique company. By putting our people first, we are able to consistently deliver to the highest quality standards in the industry and develop lasting relationships with our customers.

PRC Wind is a Midwest focused, Minnesota-based renewable energy development company that has actively developed and installed utility scale wind generation since 1997. Operating projects developed by PRC total more than 1,900 MW of capacity. The PRC team includes personnel with substantial project management and development experience. The team maintains a strong network of development services to successfully complete quality wind energy projects.

Slipstream is a mission-driven nonprofit that creates, tests, delivers and scales the next generation of energy efficiency and renewable energy programs that move us farther, faster toward a clean energy economy. Slipstream partners with utilities, local and state governments, regulatory agencies and other organizations to inspire new solutions to big energy challenges. With 39 years of experience demonstrating “what’s next” in programs and technologies, Slipstream is an established and trusted trailblazer in the industry. For more information about Slipstream visit slipstreaminc.org.

Spencer, of Spencer Real Estate Group got his start in the real estate business because he loves spending time helping people. Since 2006 he’s guided each of his clients in finding the perfect home for their lifestyle—and he enjoys every minute of his role.

Sun Badger Solar consists of a core group of dedicated and passionate individuals with a wealth of knowledge and experience in renewables. We pride ourselves on our customer service and communication. Based in both Milwaukee and Chicago, we offer our clients the newest technology available at a competitive price. We are excited to be a part of the Midwest solar industry!


Bartelt Grob attorneys specialize in real estate lawbusiness law, and estate planning. They have spent over 30 years building their reputation and network throughout the Wisconsin business and legal communities.

Clean Fuel Partners exists to make a difference by improving the environment in tangible and measurable ways. We do this by partnering with farmers and communities to transform agricultural waste into renewable energy and other products that support sustainable agricultural practices. Clean Fuel Partners and its partners build and manage proven, advanced biodigester systems that put waste to work for our customers and the stakeholders they serve.

Eagle Point Solar is committed to the deployment and installation of U.S. manufactured solar photovoltaic systems to produce emission free energy throughout the Midwest and the United States for the purpose of reducing greenhouse gases and spurring job creation and domestic economic activity.

Eland Electric Corporation is a fully licensed, insured and bonded electrical contractor, located in Northeastern Wisconsin, with 50 years of experience. Our emphasis at Eland Electric is service and quality to provide you, our loyal customers, with the best solution. We take pride in being one of the largest solar installers in Wisconsin.

Electro-Mechanical Industries, Inc. (EMI) is an electrical distribution original equipment manufacturer (OEM) serving renewable industries such as solar, wind and EV charging. EMI’s in-house engineering and manufacturing capabilities allow us to deliver innovative designs and solutions and respond rapidly to changes that occur during the process. EMI excels at solving complex project challenges, including designs with unique dimensions, unforeseen mid-project revisions, and projects with tight lead times. As a leader in our industry, our customers have come to expect the very best solutions to their electrical distribution needs.

Energy Law Wisconsin is a law practice dedicated to providing Wisconsin businesses, governmental organizations, utilities, non-profits and individuals the legal support they need to make and implement sound energy-related decisions.

GDS Associates, Inc. is a multi-service consulting and engineering firm formed in 1986 and now employs a staff of over 170 in six locations across the U.S. Their broad range of expertise focuses on clients associated with, or affected by, electric, gas, water and wastewater utilities.

Home Team Energy Company is comprised of high quality, licensed electricians and solar energy experts with decades of combined experience.  We pride ourselves on high quality installations coupled with 5 Star Customer Service.  We truly love what we do and every installation is completed with integrity and pride. We service all of Southern Wisconsin.

Kettle View Renewable Energy , based in Random Lake, can size and install a Wind Energy System to meet your needs whether you are a residential or commercial customer, school, farm or municipality. They specialize in battery charging systems as small as 300W to grid-tied systems as large as 100kW.

The Midwest Renewable Energy Association, based in Custer, WI, promotes renewable energy, energy efficiency, and sustainable living through education and demonstration.

Midwest Solar Power, based in Madison, designs and installs solar electric systems. Specializing in micro-inverter systems, MREA trained and certified, a Focus on Energy trade ally, with 25 years construction experience.

Next Step Energy LLC is a full service installer of renewable energy, high efficiency radiant heating systems and more recently urban design. They specialize in consultation, creative design and installation of solar electric, solar thermal and unique heating systems. They have provided service for over thirty years to the greater Chippewa Valley region of Western Wisconsin.

Olson Solar Energy sells and skillfully installs residential and commercial PV solar systems. They are currently servicing the Greater La Crosse, and surrounding Western Wisconsin areas. They are passionate. They are driven. They care. They believe their strong work ethic, desire to provide top-notch customer service, and true passion for solar energy make Olson Solar Energy your best choice for green energy. Follow Olson Solar Energy on Facebook.

Pivot Energy is a Denver-based solar energy company with offices in Chicago and St. Louis that is focused on helping accelerate the rapid transition taking place in the energy industry toward power generation that is cleaner, and more decentralized. Pivot offers a distributed energy platform that includes a range of services and software aimed at serving the full commercial solar ecosystem, including retail customers, project developers, system operators, utilities, and financiers. The company develops, finances, builds, and manages community and commercial solar projects around the country. Pivot operates on a triple bottom line basis, measuring success by the positive impact to people, planet, and profit. Learn more at pivotenergy.net.

Scientific Protein Labs has been a world leader in the development and cGMP-compliant manufacturing of pancreatic enzymes, heparin, and its analogs for nearly 30 years.

“Committed to Truth, Compelled to Justice” is the guiding principle for the rule of conduct and direction for the Sisters of Racine Dominicans. At their Eco-Justice center, they have solar electric, solar hot water, geothermal heating and cooling and wind power. Learn more about their commitment to renewable energy.

TDS Custom Construction specializes in custom remodeling and design in the greater Madison area. We are recognized for our strong emphasis on energy efficient and sustainable designs, and a commonsense approach to Home performance and green building techniques.


AIA Wisconsin is the statewide Society of The American Institute of Architects. With over 1,500 members, AIA Wisconsin represents architects in private practice, business, industry, government and education, as well as interns, allied professionals and students. AIA Wisconsin’s mission is to serve members, advance their value and improve the quality of our built environment.  

Appleton Solar, LLC is a family-owned Wisconsin business. You are always dealing with an owner of Appleton Solar with every interaction. Our mission is to provide Wisconsin residents and businesses with solar energy solutions for their homes and businesses, while simplifying the process for our customers and providing exceptional customer service. We have been servicing the Fox Valley since 2008.

Chequamegon Bay Renewables is a 501(c)(3) nonprofit dedicated to local sustainable initiatives, primarily, but not limited to, renewable energy. Our mission is to work with multiple entities, in the spirit of cooperation and community building, to reduce reliance on fossil fuels while promoting clean water, clean air, organic foods, and healthy living. We initiate projects, resources, and education to make renewable energy more accessible in our community.

The City of Madison remodels and builds buildings that include many green features including solar with the City working toward zero-net energy buildings. The City also works to encourage the Madison community to further embrace renewable energy through sponsoring Madison’s Solar Group Buy, Training under-employed people to install solar through GreenPower, and staffing the Sustainable Madison Committee, which recently passed a resolution setting a goal of 100% renewable energy for the City of Madison.

CJM Lighting & Electrical is an electrical contracting company specializing in energy management solutions as well as energy-efficient lighting systems for our clients. We design and implement the latest energy saving lighting systems & controls, including revolutionary LED technology. Our primary goal is to save money for your company by maximizing energy savings while controlling costs.

CURE Energy Solutions is the specialty division of Tower Technologies LLC which provides affordable quality installation services for wind & solar energy systems, LED lighting, and EV charging stations. We are Licensed Electrical Contractors serving Wisconsin residential and commercial customers since 2002.

Driftless Solar provides solar electric, solar hot water, solar heat serving Dodgeville, Spring Green, La Crosse, and the greater Driftless Area of Wisconsin.

Energize LLC, located in Winneconne, Wisconsin, near Oshkosh in the Fox River Valley of Northeast Wisconsin, provides reliable and clean renewable electrical energy systems to residential, commercial, non-profit and governmental customers.

Since 1994, Energy Concepts, Inc. has been providing world-class engineering for mechanical and electrical systems in residential, commercial, and industrial buildings.

Lake Michigan Wind & Sun, based in Sturgeon Bay, has over 25 years of renewable energy experience with solar electric, solar thermal, and wind energy systems. They provide system design, engineering, installation, sales and service, manufacturing, and consulting and education.

Legacy Solar specializes in solar energy system design and installation including solar electric and solar water heating systems. Legacy Solar has been a proud provider of clean, sustainable energy solutions for Wisconsin since 2002.

Madison Computer Works is proud to be a locally owned, independent computer store offering quality products and support in a friendly, professional environment. Our industry consumes a great deal of energy and natural resources, both in the creation and use of computing devices. We feel a very strong obligation to mitigate the consumption and waste wherever possible. In 2015, the company more than doubled it’s existing solar supply to nearly 20kW of solar PV.

McKinstry is a national leader in designing, constructing, operating and maintaining high-performing buildings. From new construction and ongoing operations to adaptive reuse, energy retrofits and renewables, McKinstry provides a single point of accountability across the entire building lifecycle. McKinstry works with school districts, universities, municipalities, hospitals and private companies nationwide. McKinstry focuses on people and outcomes to ensure the built environment serves owners, operators and occupants alike. Our clients care about long-term planning, saving energy and driving out waste, and have sophisticated facilities that require nothing but the best. McKinstry is your trusted partner for the life of your building. Learn more at www.McKinstry.com


Pines Bach LLP is an experienced and knowledgeable Madison law office serving individuals, families, businesses and organizations in diverse areas of civil and criminal law. The firm is staffed and managed with progressive, practical lawyers, diligent about meeting high expectations for civility, ethics and results.

Attorney Ed Ritger, at Ritger Law Office, provides legal services out of his office Random Lake, WI, which features a geothermal heating and cooling system and 5.12 kilowatts of rooftop solar photovoltaics.

RWE Renewables Americas LLC is one of the world’s most experienced developer, owner, and operators of renewable power projects with some of the most efficient, highest performing projects in the United States. In fact, we’ve developed and constructed more than 3,800 megawatts of renewable capacity in the United States since 2007. As part of RWE Renewables, our goal is to deliver renewable energy from technologies that address the growing concern about energy security, energy affordability, and climate change.

Safer Better World isn’t a standard name for a company. But then, we believe our mission isn’t standard, either.  Military veterans harnessing the sun’s power — an energy source that’s plentiful, natural and clean — contributes to secure homes and families.  Which in turn means stronger, healthier, happier neighborhoods and communities — and a safer, better world for all of us.  Safer Better World LLC is a veteran owned engineering, procurement, and construction contractor for photovoltaic solar.  We make the vision of low cost, no strings attached solar energy a reality.  SBW solar installations are extremely reliable, aesthetically pleasing, and a great investment.

Mick Sagrillo, of Sagrillo Power & Light, has worked with small wind for over 31 years.

The Sisters of St. Francis of the Holy Cross serve as parish leaders, educators, health caregivers, campus ministers, artists, minority and environmental advocates, social workers, literacy counselors, retreat directors, missionaries and administrators. With the same courage, tenacity and faithfulness as their founders, they actively engage in improving the spiritual and material condition of those with needs.

Speed Solar Inc. is accelerating the use of alternative energy by promoting solar to replace fossil fuels.  We are expanding the installation of solar power systems by providing quick access to quality solar components.

Standard Solar, Inc. is a leading solar energy company specializing in the development and financing of solar electric systems nationwide. Dedicated to making Distributed Generation (DG) solar more accessible to businesses, institutions, governments and utilities, the company is forging the path for clean, renewable energy development through turnkey solutions. With more than 100 megawatts installed, financed and maintained, Standard Solar is one of the most trusted and respected solar companies in the US. Owned by Énergir, a leading energy provider with more than $5.8 billion US in assets, Standard Solar operates nationally and is headquartered in Rockville, Md. For more information, please visit www.standardsolar.com.

Sustainable Engineering Group services are specialized in energy efficiency for government and commercial buildings. Services provided by the firm include Commissioning, Retro-Commissioning, Energy Analysis, and Sustainable Design. Project work includes Energy Audits, Sustainability Master Plans, and Net-Zero Energy Consulting. Projects span across the United States and include education, healthcare, office buildings, and airports.

Synergy Renewable Systems is your local turn-key solar installer, based in Stoughton, just south of Madison. With an eye for the details, we match your energy and investment goals with the best equipment solutions. Our honest, detailed approach to system design and installation makes going solar a breeze for residential and commercial clients alike.

TRC is a leading provider of end-to-end engineering, consulting and construction management solutions fueled by innovative technology. With deep roots in environmental permitting, project development and engineering, TRC is helping transform the energy landscape. Their experts plan, permit, engineer, and support construction for solar, wind, hydro, biomass, biogas and energy storage projects nationwide. They design projects that minimize environmental impacts and avoid costly mitigation without creating construction or operational constraints.

Werner Electric has been providing electrical products and services since 1948 with 11 locations across Wisconsin and Michigan’s Upper Peninsula. Nearly 40 engineers and product specialists are on staff to provide services such as technical support, training, energy audits, inventory management, lighting design, and more.

Wisconsin Farmers Union is a member-driven organization committed to enhancing the quality of life for farmers, rural communities, and all people.