What the review needs to establish
Identify ownership of environmental attributes, certification, reporting period and retirement evidence. Onsite solar does not automatically support a renewable-use claim if its certificates are sold to another party.
Information to prepare
- Define the claim and reporting period
- Identify eligible instruments and attributes
- Prevent duplicate claims or double counting
- Retain retirement and contract records
A worked decision example
Hypothetical: a company buys electricity from the grid and separately retires qualifying certificates for a defined consumption amount. The documentation should explain that accounting mechanism rather than imply dedicated physical renewable delivery to the meter.
Illustrative inputs explain the decision; they are not an available offer, customer outcome or forecast.
Create a claim and evidence register
For each location and reporting period, record consumption, procurement instrument, attribute ownership and the exact proposed claim. Keep physical generation, purchased electricity and environmental attributes separate. Where an onsite or supply arrangement transfers certificates elsewhere, make that transfer visible before anyone uses the project in a renewable-use statement.
How to use the result
Review claims against the applicable reporting framework and procurement requirements. Cost and eligibility differ by instrument; no universal premium or offset equivalence is assumed.
Screen procurement routes against business constraints
Compare the practical fit of each route before evaluating its headline price. A short-term tenant, a stable owner-occupied property, and a creditworthy long-horizon buyer can have different suitable options. Record property rights, available utility programs, required contract duration, implementation lead time, credit demands, and reporting evidence. A financial PPA, rooftop project, green tariff, and unbundled certificate purchase create different obligations even when all address a renewable objective. Keep this route-screening record separate from the eventual claim evidence and from any resilience or backup-power design.
Questions & answers
Does annual renewable matching establish hourly supply?
No. An annual MWh total and time-specific matching require different evidence. State the actual method and period rather than imply continuous renewable delivery merely because the annual certificate quantity equals annual consumption.
Can a green tariff be assumed available?
No. Utility program eligibility, available capacity, customer class, term, and enrollment conditions need verification. A program mentioned in another company’s case study is not an executable offer for your meter or a guarantee of lower cost.
Does a PPA fix the business’s complete utility bill?
Not automatically. Physical and financial structures differ, and energy settlement can sit alongside ordinary retail supply and delivery. Material project commitments need appropriate legal, accounting, credit, tax, and technical review rather than a simple unit-price comparison.
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.
- U.S. EPA: renewable energy certificates
REC units, environmental attributes and ownership. - EIA: electricity prices and factors affecting prices
Price components and variation; not an account-specific quote. - EPA: Green power supply options
Different renewable procurement routes and obligations. - EPA: Utility green tariffs
Program structures and eligibility.