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.

Absolutely — flat roofs are often ideal for commercial solar because they allow flexible panel orientation and use ballasted mounting systems that do not penetrate the roof membrane. Many commercial buildings in Canary Wharf, Stratford, and Barking have flat roofs perfect for large solar arrays. We design ballasted systems with the correct structural load calculations for your roof type.

Solar installations on listed buildings require listed building consent in addition to standard planning considerations. We have experience working with heritage buildings in East London and can design discreet installations that comply with planning requirements while delivering meaningful energy savings. Contact us for a heritage-specific feasibility assessment.

Commercial solar PV installations are typically exempt from business rates increases under the Plant and Machinery exemption scheme. They may also qualify for reduced insurance premiums with some providers due to improved building resilience. We can provide all documentation your insurer requires, including MCS certificates and electrical installation reports.

Yes — we offer annual commercial solar maintenance contracts covering panel cleaning, inverter health checks, connection inspections, and generation performance reviews. Regular maintenance ensures your system continues to deliver the projected ROI over its 25+ year lifespan and catches minor issues before they become expensive problems.

Yes — all our commercial solar installations include remote monitoring as standard. You receive a web-based dashboard showing real-time generation, historical performance, and fault alerts. This is particularly useful for facilities managers overseeing multiple sites across East London and Essex.