This depends on your electricity consumption and roof area. As a guide, a 50kWp system (approximately 120 panels) suits a medium-sized warehouse or office building with electricity bills of £1,500–£3,000 per month. We size your system based on your actual consumption data and available roof space — not arbitrary round numbers.

For most commercial projects up to 100kWp, installation typically takes 2–5 days once all approvals are in place. DNO approvals (which we manage on your behalf) typically take 4–12 weeks depending on system size and grid connection requirements. We give you a realistic project timeline in your proposal.

Most commercial solar installations on existing buildings qualify as Permitted Development in England, but this depends on the site's planning history, location, and the scale of the installation. Systems on listed buildings or in conservation areas require planning permission. We check all planning requirements during the survey stage.

For businesses with significant daytime electricity consumption, commercial solar typically achieves payback in 3–6 years, with a 25+ year system life. At current electricity prices, a 50kWp system can generate annual savings of £12,000–£18,000. We provide detailed ROI modelling in every proposal, based on your actual consumption data.

Yes — and for many businesses it makes excellent financial sense. Battery storage extends solar self-consumption beyond daylight hours, enabling businesses to avoid expensive peak-rate electricity in the evening. We design integrated solar and battery systems and can also advise on peak demand management strategies.

A G99 application is a formal notification to your Distribution Network Operator required for solar installations generating more than 16A per phase (approximately 11kWp on a single-phase connection, or 50kWp on a three-phase connection). We manage G99 applications as part of our commercial solar service, including liaising with the DNO on your behalf.