Solar Knowledge
Learn solar, with Sol
Guides, tips and insights on solar generation, sun hours and getting the most from your PV system — written in plain English.
Introducing Sun Hours: The Simplest Way to See What Your Solar Panels Will Produce
Enter your postcode, tell Sol your best solar day, and get a personalised 7-day generation forecast — no engineer, no complicated setup. Meet the app built for real solar homeowners.
How Many Sun Hours Does the UK Get? A Region-by-Region Guide
From Cornwall's 1,600+ annual peak sun hours to Scotland's 1,200, discover what peak sun hours really mean for your solar panel kWh output across the UK.
Solar Panel Output: How to Estimate Your Annual kWh Generation
Learn the formula solar installers use to estimate kWh output — peak sun hours × panel wattage × system efficiency — with worked examples for UK homes.
Best Time of Year for Solar Panels in the UK
May to August delivers 60–70% of the UK's annual solar energy. Here's a month-by-month guide to UK solar generation and what it means for battery storage and energy bills.
Is Solar Worth It in the UK? A 2026 Guide for the Solar Curious
Thinking about solar panels but not sure where to start? We break down the costs, the savings, and the simple way to track your future generation.
Energy Independence: Using Solar to Protect Yourself from Rising Prices
With energy prices remaining volatile, solar self-sufficiency is more than just an environmental choice — it's a financial one.
Special Launch Offer: Get Sun Hours Ad-Free (First 100 Users)
We're celebrating the launch of Sun Hours! Be one of the first 100 users to claim a special code for an ad-free experience and direct email support.