# How solar improves your commercial EPC (and helps with MEES)

Adding solar to a commercial building reduces the amount of grid electricity it needs, which is one of the more effective ways to improve its EPC rating. A better EPC helps you meet Minimum Energy Efficiency Standards (MEES), avoid letting restrictions, and protect the value and lettability of the property.

## What is MEES?

The Minimum Energy Efficiency Standards (MEES) set a minimum EPC rating for privately rented property. For commercial property in England and Wales, it is generally unlawful to continue letting a building with an EPC below E, and the government has signalled its intention to raise the minimum over time. Landlords who fall short can face restrictions on letting and financial penalties.

## How solar moves the rating

An EPC reflects a building’s energy performance. Because on-site solar lowers the amount of electricity drawn from the grid, it improves the modelled performance and can lift the rating — often by a meaningful margin on electrically heated or high-consumption buildings.

## Why it matters for value

A stronger EPC is not just about compliance. It supports rent, widens the pool of tenants who can legally occupy the space, and increasingly influences buyer and investor decisions. Solar funded through a PPA delivers that improvement with no upfront cost.

## Frequently asked questions

**How much will solar improve my EPC?**

It depends on the building’s size, use and existing systems, but reducing grid-drawn electricity is one of the stronger levers available. We can indicate the likely impact as part of a free assessment.

**Does the tenant or landlord benefit?**

Both can, depending on the lease and who uses the generated power. We can structure a PPA around a landlord, a tenant, or both, and advise on the best arrangement.

## Sources & further reading

- [GOV.UK — Non-domestic minimum energy efficiency standard (MEES)](https://www.gov.uk/guidance/non-domestic-private-rented-property-minimum-energy-efficiency-standard-landlord-guidance)
- [GOV.UK — Find an energy certificate (EPC)](https://www.gov.uk/find-energy-certificate)

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Source: [How solar improves your commercial EPC (and helps with MEES)](https://ppafunding.com/guides/how-solar-improves-your-commercial-epc) · Author: PPA Funding team · Updated: 2026-07-30

PPA Funding is an independent introducer operated by DVC Group Ltd (Companies House 10462808), Shrewsbury — not the funder, the installer or the maintenance provider. The service is free to use; a commission may be earned from a partner at no extra cost. Content is educational and is not financial or tax advice.