Renewable specifications must be comparable
Decision pointVerde proposalConstellation proposal
EligibilityCurrent commercial account offerCurrent commercial account offer
Attribute scopeWritten coverage and specificationsWritten coverage and specifications
EvidenceOwnership and retirement documentationOwnership and retirement documentation
CostBase supply plus all incremental chargesBase supply plus all incremental charges

Verify the product rather than infer it from branding

Obtain the exact business offer, legal contracting seller and account eligibility from each channel. A residential renewable promotion is not a commercial contract. The public Verde site identifies the brand, while Constellation’s business materials identify its supply channel; neither substitutes for the current account-specific agreement.

Write down whether the product includes voluntary renewable certificates, the percentage of actual consumption covered and the relevant generation specifications. A supplier’s corporate energy portfolio is not automatically the environmental attribute assigned to a retail customer. Keep the purchased product separate from general corporate sustainability statements.

Review coverage, ownership and retirement

One REC represents the attributes of one MWh of renewable generation. Ask who owns and retires the certificates, for which beneficiary and reporting period, and how actual use is reconciled. If one offer includes a stated voluntary percentage and the other only ordinary market compliance, do not call their green features equivalent.

Compare source, vintage, geography and any required verification or certification alongside price. A cheaper certificate specification may fail the business’s intended reporting requirement. This comparison does not certify a product, calculate avoided emissions or determine whether a public claim is permitted; the contract and evidence need their own review.

Hypothetical matched-specification comparison

Suppose 200,000 kWh are covered annually. An invented supply premium of $0.0015 per kWh adds $300; a second proposal’s $0.001 premium plus a $150 annual program fee adds $350. If both provide truly equivalent attributes, the first incremental cost is $50 lower.

These are arithmetic examples, not Verde or Constellation prices. If the second proposal covers only half the consumption, the calculation no longer compares the same product. At full coverage, the modeled quantity is 200 REC equivalents. Keep the supply rate, incremental renewable cost and attribute specification visible rather than bundle them into an unexplained green score.

Evaluate the whole contract and final evidence

Review base supply components, recurring fees, fixed or variable pricing, notice and exit provisions. A renewable feature does not remove ordinary procurement obligations or change physical delivery reliability. Confirm the utility and account can use the proposed arrangement before considering it an available choice.

Retain accepted documents and any certificate or retirement statement provided after the reporting period. A procurement record should state the intended outcome and its verified evidence. This guide does not assume green supply is cheaper or assign a service-quality ranking. It supports a matched product review grounded in the account and the attributes actually transferred.

Questions & answers

Does a green brand name prove one hundred percent coverage?

No. Verify the percentage, specifications, ownership, retirement and actual contract for the business account.

Sources & scope

Primary references reviewed October 15, 2026. These sources support the stated concepts; actual tariffs, program rules and signed agreements govern the account. Decision examples and operational worksheets are original educational analysis.