Sustainability has moved from a nice-to-have to a business necessity for many commercial organizations. Investors, tenants, customers, and regulators are increasingly asking companies to demonstrate responsible energy sourcing. But the landscape of green energy options is complex — and full of marketing language that doesn't always mean what it seems to.
This guide cuts through the noise and gives commercial buyers a clear, practical understanding of the green energy options available in deregulated markets, what they actually deliver, and how to evaluate them.
The Green Energy Landscape: Key Products
Renewable Energy Certificates (RECs)
A Renewable Energy Certificate represents the environmental attributes of one megawatt-hour (MWh) of electricity generated from a renewable source — wind, solar, hydro, biomass, etc. When a renewable energy facility generates power, it earns RECs that can be sold separately from the electricity itself.
When your supplier includes RECs in your electricity product, they're retiring RECs on your behalf — essentially crediting your account with the renewable generation that offsets your consumption. Your physical electricity still flows from the grid (which is a mix of all generation sources), but your consumption is matched with documented renewable generation.
What RECs do: Allow you to claim that your electricity consumption is matched with renewable energy generation. Widely accepted for sustainability reporting and ESG disclosures.
What RECs don't do: Change the physical electrons flowing to your facility or guarantee that the renewable energy was generated locally or at the same time as your consumption.
Green Power Supply Products
Many retail electricity suppliers offer "green" or "renewable" supply products — essentially electricity supply contracts where 100% (or some percentage) of your consumption is matched with RECs. These products are often only marginally more expensive than standard supply — sometimes just fractions of a cent per kWh — making them an accessible option for most commercial buyers.
Power Purchase Agreements (PPAs)
A Power Purchase Agreement is a long-term contract (typically 10–25 years) to purchase electricity directly from a renewable energy developer at a fixed price. PPAs are common for large commercial and industrial buyers with substantial energy loads and sophisticated finance teams.
Virtual PPAs (VPPAs) are a financial instrument version — you don't physically receive the renewable power, but you lock in a fixed price for RECs and receive or pay the difference between that price and the market price for electricity.
Best for: Large commercial and industrial buyers with long-term sustainability commitments and the financial sophistication to manage long-term contracts.
Community Solar
Community solar programs allow businesses to subscribe to a share of a local solar installation without owning the panels. Subscribers receive bill credits for their share of the solar generation, often at a discount to standard utility rates.
Best for: Businesses that want local renewable energy support with modest cost savings and no long-term commitment.
For most commercial businesses, a green supply product with 100% REC matching is the most practical and cost-effective entry point into renewable energy procurement. It's simple, well-understood by sustainability reporting frameworks, and typically adds minimal cost to your energy bill.
Sustainability Reporting Frameworks and Green Energy
Different sustainability reporting frameworks have different requirements for how green energy purchases are treated. Understanding which framework your organization reports under helps you choose the right product.
GHG Protocol / Scope 2 Emissions
The Greenhouse Gas Protocol allows organizations to report Scope 2 emissions (electricity consumption) using either a "location-based" method (average grid emissions) or a "market-based" method (supplier-specific emissions factors). Green power products with RECs support market-based Scope 2 reporting, allowing organizations to claim zero Scope 2 emissions for the electricity matched with RECs.
CDP Reporting
The Carbon Disclosure Project (CDP) questionnaire asks organizations to disclose their renewable energy use. REC-backed supply products are recognized as qualifying renewable energy under CDP reporting.
RE100
RE100 is a corporate renewable energy initiative requiring members to commit to 100% renewable electricity. RECs are accepted as evidence of renewable electricity consumption under RE100 guidelines.
How to Evaluate Green Energy Offers
When comparing green energy products, watch for these key factors:
- REC vintage and source: RECs from recent vintages (current or prior year) and from reputable sources (wind and solar are most commonly sought) are generally preferred over older or lower-quality RECs.
- Additionality: Some sustainability frameworks prioritize "additional" renewable energy — projects that wouldn't exist without the revenue from REC sales. This is more relevant for PPAs than standard supply products.
- Price premium: Green products typically carry a small premium over standard supply. Evaluate whether the premium is justified by your sustainability reporting needs.
- Contract terms: Green supply products should have the same contract flexibility as standard products. Be cautious of long lock-in periods with premium pricing.
- Documentation: Ensure you receive documentation of REC retirement that can be used in sustainability reporting.
The Cost of Going Green
One of the biggest misconceptions about commercial renewable energy is that it's significantly more expensive. In today's market, the cost of green power products — particularly REC-backed supply — has fallen dramatically.
For most commercial buyers in deregulated markets, switching to a 100% renewable supply product adds between 0.1 and 0.5 cents per kWh to the supply cost. On a $10,000 monthly electricity bill, that might represent an additional $100–$300 per month — a modest cost for meaningful sustainability credibility.
In some markets and at some points in the forward curve, green supply products are actually priced at parity with standard products, particularly when surplus renewable generation drives down the cost of RECs.
What Hovey Energy Offers
Hovey Energy helps commercial clients access renewable energy products through our supplier network. We can run a competitive bid that includes green supply options alongside standard supply options, allowing you to compare pricing and make an informed decision.
We also provide documentation support for sustainability reporting — ensuring you have what you need to substantiate your green energy claims in whatever framework your organization uses.
If sustainability is a priority for your organization and you want to understand your options, reach out for a free energy analysis. We'll show you exactly what's available in your market and what it costs.
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