G99 Explained: How Commercial Solar PV Connects to the UK Grid

Most commercial solar PV systems in the UK require a G99 grid connection, but what does that actually mean?

In this video, Solarcrown Commercial explains how commercial solar connects to the electricity grid under Engineering Recommendation G99. We cover when G99 applies, how the DNO approval process works, what export limits mean for businesses, and how grid compliance affects system design, installation and ROI.

We also explain how we manage the full process for our clients, from feasibility and PV design through to DNO liaison, commissioning and final approval. This is essential viewing for anyone planning solar PV on warehouses, factories, offices or public buildings.

If you’re considering commercial solar and want to understand grid connections properly, this video is for you.