The commercial buyer's library
Practical reading on contracts, bills, operating decisions and supplier choice. The existing library remains available while we strengthen its content and source notes.
10 guides on this page. Browse more with the page links below.
Virtual power plants aggregate commercial loads into grid capacity resources. Learn how C&I businesses earn capacity, energy, and ancillary service revenue through PJM, ERCOT, NYISO, and CAISO programs.
Updated 2026-10-15Understand what virtual power purchase agreements (VPPAs) are, the real pros and cons for mid-size businesses, and the best VPPA alternatives for Illinois commercial energy procurement.
Updated 2026-10-15Learn what green energy means for Illinois businesses, how renewable energy boosts your bottom line and brand image, and how to access green energy incentives and savings in Illinois today.
Updated 2026-10-15Commercial electric bills jumped in 2026 — average U.S. commercial rates rose about 4.8% year-over-year. Here are the six real drivers, the exact line items where the increase hides, and a 5-step plan to bring a spiking business electric bill back down.
Updated 2026-10-15Learn about why electricity prices vary by region for commercial electricity customers in deregulated markets.
Updated 2026-10-15Learn about why natural gas prices vary by region for commercial natural gas customers in deregulated markets.
Updated 2026-10-15What businesses should expect for natural gas prices in winter 2026-2027. EIA forecasts Henry Hub near $3.67/MMBtu for 2026, but LNG exports, storage, and cold-weather risk create upside. Here is the outlook and how to hedge.
Updated 2026-10-15A commercial procurement guide to seasonal gas exposure, benchmarks, basis, delivered cost, volume uncertainty and renewal timing.
Updated 2026-10-15Learn about winter vs summer electricity rates: planning guide for commercial electricity customers in deregulated markets.
Updated 2026-10-15An explicitly illustrative cost comparison with stated assumptions, fee arithmetic and limits. Not a customer testimonial or achieved outcome.
Updated 2026-10-15