Engineering-first since 1985
The commercial energy decision, engineered.
Most commercial solar advice comes from salespeople. Ours comes from the people who engineer and build commercial energy projects for a living. The numbers, the incentives, and the timelines behind a decision you can defend to your board, nationwide and deepest in Illinois.
40 years
Engineering Illinois commercial energy since 1985
900+
Completed solar, storage, and efficiency projects
In-house EPC
Engineering, procurement, and construction under one roof
ComEd + Ameren
Illinois incentive, interconnection, and rate expertise
Start with your challenge
What's driving your energy decision?
Pick the problem in front of you. Tap a challenge and we will point you straight to the guides built for it.
Energy costs that keep climbing
ComEd capacity charges and PJM prices are rising for structural reasons, and they will not reverse on their own. On-site solar and storage are the one cost lever you actually control. We size them to your real load, not a generic payback table.
See the market intelligenceIncentives that reward acting now
The federal credit, the ComEd cash rebate, and Illinois Shines all pay differently every quarter. The federal credit stays at 30 to 40 percent, and a project starting today has until December 31, 2027 to be placed in service. We make sure you capture every dollar you qualify for, on time, and prove the number to your CPA.
See the incentives, in real numbersA capital decision you have to defend
Purchase, lease, PPA, or credit transfer. The right structure depends on your balance sheet and your tax position, not a brochure. We model each one against your numbers so the recommendation holds up in front of your board.
Work through the economicsSustainability pressure from your customers
Your largest accounts are pushing carbon commitments down the supply chain, and the questionnaires keep getting more specific. On-site solar and storage give you a measurable answer you own, instead of a certificate you re-buy every year.
See the customer-pressure briefBy role
Built for every seat at the table.
One commercial solar decision touches finance, operations, sustainability, and the plant floor. We speak to each of them in their own terms, in on-site solar and battery storage, never a one-size pitch.
CFOs & Finance
Recover up to half the project cost in year one through the ITC and depreciation, and walk into the board meeting with a model you can defend.
Operations & Facilities
Flatten the demand charges that can drive 30 to 60 percent of your bill, and ride through peak-price events with on-site storage.
Sustainability & ESG
Hit the carbon targets your customers and your board are asking about with on-site generation you can actually measure and report.
Engineering & Plant
A system engineered to your real load shape and interconnection limits, not a generic rooftop estimate off a satellite photo.
Executive & Ownership
Turn a rising, uncontrollable utility cost into a fixed, owned asset that adds value to the facility and the balance sheet.
Procurement & Supply Chain
Answer the sustainability questionnaires from your largest accounts with proof, before they become a condition of the contract.
The economics
Cut the cost. Then defend the number.
Between federal and state programs and the right financing structure, a commercial system pencils out faster than most operators expect. Here are the two levers, in real numbers.
Cut the upfront and ongoing cost
The 30% federal credit, Illinois Shines SRECs, the ComEd rebate, and depreciation, worked out for your project in real numbers, not a generic table.
Explore incentivesMore than one way to fund it
Purchase, lease, PPA, or credit transfer. We model each against your balance sheet and tax position, so the structure fits how you actually buy.
Work through the economicsThe full library
Or go straight to a topic.
Five clusters, each a working library of decision-grade guides. Browse the one that fits.
Incentives
Incentives & Safe Harbor
The federal ITC, the OBBBA safe-harbor timeline, Illinois Shines SRECs, the ComEd Distributed Generation rebate, and MACRS, worked out for Illinois commercial and industrial projects.
ExploreEnergy Policy
Energy Policy
The rules behind the numbers. Federal tax law changes, IRS guidance and notices, court rulings, and Illinois energy legislation, each explained for what it means to a commercial or industrial facility owner's next energy decision.
ExploreMarket Intelligence
Illinois Energy Market
PJM capacity prices, the 2025 Resource Adequacy outlook, the CRGA Act, and the rate trends driving commercial energy decisions across ComEd and Ameren territory.
ExploreIndustries
Solar & Storage by Industry
How on-site solar and battery storage pencil out for the facilities that run Illinois: plastics, packaging, cold storage, food and beverage, hospitals, universities, and data centers.
ExploreService Areas
Service Areas
Commercial solar and battery storage nationwide: directly licensed in 10 states, able to build in all 50, with city-level incentive math for the Illinois markets GEC serves most.
ExplorePlaybook
Solar & Storage Playbook
The engineering and the economics: ROI and payback, demand-charge management, interconnection, rooftop versus ground versus carport, O&M, and what to ask before you sign.
ExploreLatest insights
Fresh from the engineering desk.
Market Insights
The Capacity Squeeze, Part 1: How PJM Capacity Prices Rose 833 Percent and Why They Are Not Coming Down
PJM's capacity price went from $28.92 to $269.92 per megawatt-day in a single auction, and the three auctions since have all cleared at the cap. What happened, what it is doing to real manufacturers in Ohio and Pennsylvania, and why northern Illinois has more at risk than its current bill shows.
Illinois Energy Market
ComEd Demand Charges and Battery Payback: The Worked Guide for Illinois Businesses (2026)
ComEd bills three separate charges that matter to a commercial account: energy, the Distribution Facilities Charge, and PJM capacity. A battery can attack two of the three. Here is the actual math, worked against a representative 500 kW facility, including where it does not pay back.
Pennsylvania Incentives
The RISE PA Grant: How Pennsylvania Manufacturers Fund Up to 50 Percent of an On-Site Energy Project (2026)
RISE PA pays Pennsylvania manufacturers with fewer than 500 employees up to 50 percent of project cost, capped at $500,000, for industrial decarbonization projects including on-site solar. Larger manufacturers get a base grant of 30 percent of project cost. What the $396 million program pays, who qualifies, the 2026 application windows, and how it combines with the federal tax credit.
Put a number on it
Stop estimating. Get your facility's real number.
Send one recent utility bill per meter and your facility address. Our engineers verify your incentive eligibility, size a system to your actual load, and return a real projection, usually within a week. No pressure, and no obligation to build.