Business members

Terawatt Sponsors

Alliant Energy, providing utility customers in the Midwest with electric and natural gas services.

American Transmission Company, LLC
(ATC), providing the pathway for power into communities in portions of Wisconsin, Michigan, Minnesota and Illinois

Emerging Energies LLC., an organization focused on skillfully develops renewable energy resources to their highest potential while carefully considering the long-term impact.

enXco, a full service renewable energy company that develops, builds, operates and manages state-of-the-art renewable energy projects throughout North America.

Horizon Wind Energy, LLC , develops, constructs, owns and operates wind farms throughout North America.

Iberdrola Renewables, headquartered in Portland, Ore., and the world’s leading provider of wind power with more than 12,000 megawatts of renewable energy in operation around the world, and more than 4,600 megawatts of that wind power located in the U.S.

Invenergy, LLC, focuses on the development, acquisition and management of large-scale power generation assets.

North American Hydro, specializes in developing, upgrading, owning, and operating hydroelectric facilities.

Wind Capital Group, Inc., American company committed to harnessing clean, renewable sources of energy – creating jobs, generating economic opportunity and building a strong foundation for domestic energy independence.

We Energies, serves more than 1.1 million electric customers in Wisconsin and Michigan’s Upper Peninsula and more than one million natural gas customers in Wisconsin.

Gigawatt Sponsors

A-A Exteriors, an exterior home and business improvement company.

All Earth Renewables, designer and manufacturer for complete grid-connected renewable energy systems.

Element Power, a global renewable energy developer that acquires, builds, owns and operates a portfolio of wind and solar power facilities worldwide.

Foley and Lardner, a highly regarded, national law firm providing client-focused, industry-specific services that result in high-value legal counsel for our clients.

Michels Wind Energy, a balance of plant (BOP) contractor that provides full engineering, procurement, and construction (EPC) Services.

Megawatt Sponsors

Advanced Custom Geothermal, Full service geothermal and conventional heating , cooling, hot water and sheet metal.

AgWind Energy Partners

Appleton Solar, solar electric systems, site assessment, design and installation.

Bleu Mont Dairy, artisan cheesemaker focusing on sustainable practices and high quality products.

Blue Marble Solar

Cardinal Heating and Air Conditioning, Installer dedicated to providing the best possible total indoor weather solution for your family or business.

Castleman & Sons Plumbing, Inc., full service solar hot water system installer.

Chet Gerlach Government Consulting

Chippewa Valley Alternative Energy, single source provider for solar, biofuel and wind energy systems.

Cooperative Development Services, consulting for organizations that contribute to cooperative and sustainable development.

Craftsman Energy, Contractor specializing in solar, wind and energy efficient products for home and businesses.

Crave Brothers Farm, milk and cheese producer.

Clover Hill Dairy, Cambellsport, Wisconsin.

Cullen Weston Pines and Bach LLC, law firm.

Decton Iron Works Inc., manufacturer of quality woodwaste-to-energy systems.

Driftless Solar, solar hot water and PV installer for the greater Driftless Area of Wisconsin.

Energize, LLC, providing reliable and clean renewable electrical energy systems to residential, commercial, non-profit and governmental customers.

Energy Law Wisconsin, providing Wisconsin utilities, businesses, governmental organizations, non-profits and individuals legal support.

Enmac Energy Consulting

Elexco, Inc., construction and utility services.

Energy Concepts, Inc., provides reliable, creative and elegant energy solutions for commercial and residential clients.

Fagen, Inc., from local, agricultural grassroots initiatives to construction management for Fortune 500 companies, we have the broad range of skills and services necessary to be your single source contractor.

First Affirmative Financial Network, LLC , an independent investment advisory firm.

Franklin Energy, specializes in the implementation of energy efficiency and renewable energy programs for utilities and states.

Frontier Wind Energy, developed to provide our customers an opportunity to capture one of the region’s most abundant resources – the wind.

Full Spectrum Solar, full-service solar electric and solar thermal installer.

Gary A. Daun Agency, American Family agent.

GDS Associates, Inc., multi-service consulting and engineering firm.

Geronimo Wind Energy, A utility-scale wind energy developer based in Edina, Minnesota.

GHD, Inc., designs and installs anaerobic digesters.

Global Energy Options, installs geothermal energy (heatpumps), solar thermal and water heating.

Green Heron Resources

Green Neighbor, Inc., Wauwatosa residents seeking to promote sustainable living

GreenSky Energetics, Inc., installer of high efficiency solar water and air heating systems.

H&H Solar Energy Services, full service installer of PV and solar hot water.

Hot Water Products, Inc. distributor of solar thermal and water heating products.

IVI North, Industrial Ventilation Inc. believes in engineering better environments through controlling the quality of air itself.

Jim Mapp Associates.

Kettle View Renewable Energy, serving the Wisconsin wind industry with site assessments, consulting and installations.

Krieg DeVault, legal consultants

L & S Technical Associates, Inc., full service conultant in bioenergy, solar, and wind.

Lake Breeze Dairy, a 3000 cow dairy located along the eastern shore of Lake Winnebago in Fond du Lac county, Wisconsin.

Lake Michigan Wind and Sun, full service wind and solar installer.

Lakeshore Technical College, offering a Wind Energy Technology Associate Degree in Applied Science.

Midwest Renewable Energy Association, promoting renewable energy and sustainable living through education and demonstration.

Midwest Wind Finance, finances community wind projects.

Miller Engineers & Scientists, a civil, environmental, and geotechnical engineering firm.

Milwaukee Solar

Mitchell’s Heating and Cooling, geothermal and bioenergy installer

MMK Solar Thermal

Mortenson Construction, a diversified construction organization.

MSA Professional Services Inc., a consulting firm for public and private clients looking for a successful outcome to their engineering, architectural, and planning projects.

Mueller Communications, a marketing and public relations firm.

Neil Palmer & Associates, “creates and implements public affairs strategies.”

New Solar, LLC, full service solar installer.

Next Step Energy Systems, specializes in radiant heating and renewable energy applications.

Northern Battery, a battery specialist for vehicles and all types of DC and AC power products.

Northern Power Systems, Inc.

North Wind Renewable Energy, full service installer for photovoltaic, solar thermal and water heating, and wind energy systems.

NRG Systems, Inc., manufacturer of products “to help our customers measure and understand the wind.”

Orchid International, a world-class supplier of metal stampings, assemblies, lamination stampings and die casting products and services to industry leaders.

Organic Valley Cooperative, farmer-owned producer of organic foods.

Own Energy, partners with landowners to develop renewable energy projects, with an initial focus on 10 – 80 MW wind energy projects.

Pieper Power, Inc., electrical construction company.

PR Plumbing

Practical Solar, produces products that are designed to reliably meet the heating and cooling needs of commercial buildings, and yield a positive return on investment.

Photovoltaic Systems Co., full service photovoltaic installer.

Prairie Solar Power & Light, full service solar and wind installer.

Productive Energy Solutions, LLC, an independent training and consulting company that helps customers achieve higher productivity through optimizing mechanical and renewable energy systems.

Progressive Law Group, legal matters related to the environment, energy, natural resources, and commercial and consumer affairs.

Renewegy, wind turbine developer and installer

Ritger Law Office, Random Lake, Wisconsin.

Rottier Agri Solutions, Inc., Onalaska, Wisconsin.

Sagrillo Power and Light, full service solar consultant and installer.

Seventh Generation Energy Systems, a leading non-profit renewable energy organization promoting education through implementation.

Sierra Club – Midwest Office, conservation organization.

Solarwinds, full service solar and wind installer.

Solar Skies, a manufacturer of world class solar thermal collectors and mounting hardware.

SOLutions, full service installer of photovoltaic and solar thermal and water heating.

Stantec, environmental services for wetlands, wildlife, restoration, GIS, and regulatory support.

Stony Brook Wind, LLC, a Wisconsin wind project.

St. Croix Valley Sustainability Solutions LLC, We are a company ready to assist those interested in evaluating their Small Wind resource.

Sun & Daughters Solar, full service solar installer.

Sunny Solutions, full service solar installer.

Superior Safety and Environmental Services, wind energy consulting.

Synergy Renewable Energy Systems, LLC., full service renewable energy design and installation company.

Teko Mechanical, Inc., solar hot water installer.

Timmerman’s Talents, full service installer of photovoltaic, solar thermal and water heating, wind energy systems.

Trench-It, Inc., construction services for utilities, municipalities, developers, electrical contractors, communication companies, home owners and many others in the Midwest.

Union of Concerned Scientists, science-based nonprofit working for a healthy environment and a safer world.

Verona Scientific

Wessing Industries, offer a wide range of products and processes to satisfy all your rubber part needs.

WindPole Ventures, tall tower data source providing real-time, hub height standardized wind speed data from a nationwide portfolio of towers.


Wisconsin Energy Conservation Corporation, champions innovative energy initiatives that deliver short and long-term economic and environmental benefits to consumers, businesses and policy makers.

WPPI Energy, a regional power company serving 51 customer- owned electric utilities.

Wisconsin Technical College System Foundation, not-for-profit, non-stock corporation dedicated to the advancement of vocational, technical, and adult education in Wisconsin.

Zephyr Lake Energies, Glendale, Wisconsin.

Kilowatt Sponsors

A. L. Andersen Companies, representing a “stable” of the highest quality manufacturers available in the world.

AgSun Corporation, a NABCEP certified full service solar installer.

ALT Energy, renewable energy consulting; solar, wind, and solar hot water site assessments.

Arctic Glass, factory direct insulated glass for sun-rooms, greenhouses storefronts and passive solar.

Artha Renewable Energy, solar thermal consulting and design.

Bay Area Performance, full service solar installer.

Aqua Gen, full service wind system installer

Biogas Direct, LLC, environmental engineering and construction company specialized in constructing biogas plants.

Carlson Mapping & Analysis LLC, using ESRI ArcGIS software and a variety of database and analytical tools, we allow you to see your information, probe it, summarize it and share it with others

Community Green Energy, helping to bring 1,000 small scale renewable energy installations to every city in America.

Convergence Energy, LLC, a full-service provider of solar energy products.

Door County Environmental Council, an environmental council in Northeastern Wisconsin.

DR Energy Exchange

Ecomanity, LLC, providing renewable energy and energy efficiency solutions including solar electric, solar hot water, wind energy, geothermal heating and cooling systems.

Gimme Shelter Construction, Inc., builds energy-efficient, high-performance homes with artful design.

Great Northern Solar, full service installer of solar, wind, and hydro

Green Home Solar, full service installer of solar thermal and water heating.

The Green Leaf Inn, an inn green from the ground up.

Hands On Custom Creations, Certified installer of solar hot water systems.

Larch Grove Farms, a local cattle farm serving south west Wisconsin with quality beef.

Lutz, Daily & Brain, professional engineering services for utility, industrial, and institutional clients.

Madison Environmental Group, Inc., interdisciplinary, team-oriented research and consulting firm helping clients and communities build and live green.

Paterson Solar, site assessments and installation of solar hot water and solar thermal panels.

Podeweltz Repair Service

Prairie View Power, LLC

Resource Solar, Full service solar solutions.

Shock Electric, Inc.

Solar Solutions, Inc., provides solar electric education programs to all interested educators, students and members of the public.

Synergized Solar, Inc., Our goal is to provide electrical contractors & industry experts with a seamless integration of quality products, up-to-date training, and a full range of design services.

Thomas Brown, Architect, specializing in environmentally-responsible design.

WES Engineering, professional wind project development services

Trega Foods, Weyauwega, Wisconsin.

Yahara Linden Energy, LLC, Madison, Wisconsin.

Conservationist Members

Allied Industrial Marketing, Inc. , a technical (business to business) marketing firm.

Badger Ridge Piedmontese

BEC Solar, service, system design, sales, and installation.

Breitenmoser Farms

Bubbling Springs Solar, the midwest source for glazed, liquid flat-plate thermal solar collectors.

Cosmic Walker Wood Products, LLC, providing environmentally friendly solutions to consumers for home furnishings.

Kersten Lumber Co., a sawmill producer of quality hardwoods.

Lew White’s Pine, Inc., timber producer.

Quantum Dairy, Weyauwega, Wisconsin.

R. Johnson Plumbing

Sand Lake Stock & Nursery

Schmitt Woodwork and Cabinetry, Aniwa, Wisconsin.

Silica Solar, LLC, facilitates projects that reduce green house gas emissions.

SnugHouse Energy Audits

Springdale Farm, local food grower and provider offering CSA shares

Symbiont, a full-service engineering and consulting firm that plans, builds, controls and improves environments.

TJH Energy Consultants, providing solutions to make buildings more energy efficient, safe, durable and comfortable to occupy.

Wilcox Law Offices, Waukesha, Wisconsin.


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    A statewide nonprofit dedicated to promoting economically and environmentally sustainable energy policies and practices in Wisconsin.


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