Solar PV
Expert guides and articles on solar pv from the D&R Energy team, based in Portishead.
All articlesSmart Export Guarantee: Best Rates for South West Homeowners 2026
The Smart Export Guarantee pays you for surplus solar electricity exported to the grid. In 2026, SEG rates range from 3p to 15p per kWh. This guide explains fixed vs variable tariffs, how to maximise your earnings, and why MCS certification is essential.
How Many Solar Panels Does My Bristol Home Need?
The number of solar panels your Bristol home needs depends on your electricity usage, roof size, and goals. As a guide: 9 panels for a 2-3 bed home, 12 panels for a 3-4 bed home, and 18 panels for a 4+ bed home.
Solar + Battery + EV Charger: The Complete Bundle Guide for South West Homes
Installing solar panels, battery storage, and an EV charger together is the smartest financial decision a South West homeowner can make in 2026. Here is the complete guide: how the systems work together, how much you save, and what the bundle costs.
Growatt Solar Inverters: Why We Recommend Them for UK Homes
Growatt is one of the most reliable and widely installed solar inverter brands in the UK. D&R Energy uses Growatt MIN series inverters across our residential installations — here is why.
Do Solar Panels Work Well in the South West?
The South West of England has the highest solar irradiance in the UK, generating 950-1,100 kWh per kWp annually. That is up to 15% more than the national average, and solar panels work effectively even on cloudy days.
UK Solar Sets a New Record in 2025 — and Somerset Led the Way
The UK installed a record 267,032 rooftop solar systems in 2025 — up 34% on 2024 — and Somerset was the single most active local authority area in the entire country, with 3,741 certified installations in one year. Here is what the data means for homeowners in the South West.
