Solar Wiki
Plain-English explanations of UK solar, batteries, tariffs, and common problems — written by installers. If a topic is confusing online, it belongs here.
North-Facing Solar Panels: When They Make Sense in the UK
North-facing solar panels generate about half the electricity of south-facing ones, but can still be financially viable under the right circumstances. Here's when to consider them and what alternatives exist.
Solar Panels•Updated 12 Jan 2026BeginnerPanel Orientation Best Practices for UK Solar
Learn how to optimize solar panel orientation in the UK, considering roof direction, pitch, shading, and aesthetic preferences for maximum energy yield.
Solar Panels•Updated 11 Jan 2026IntermediateBecoming a Solar Installer in the UK
A guide for those considering a career in solar panel installation, covering essential skills, qualifications, and challenges.
Getting Started•Updated 11 Jan 2026BeginnerInverter Sizing and Selection in the UK
Choosing the right inverter size is crucial for your solar panel system's performance and grid compliance. This guide covers key considerations for UK homeowners.
Inverters•Updated 11 Jan 2026IntermediateUpgrading Your FiT Solar System Without Losing Your Tariff
Many homeowners believe they can't modify their feed-in tariff solar systems, but Ofgem rule changes now allow significant upgrades while protecting your valuable FiT payments. Learn what's possible and how to do it correctly.
Tariffs & FiT / SEG•Updated 11 Jan 2026IntermediateSEG Tariff Application Process
Essential documentation, supplier selection, and common delays when applying for Smart Export Guarantee payments for your solar panels.
Tariffs & FiT / SEG•Updated 11 Jan 2026BeginnerUnderstanding the G98 Application Process for Solar
A guide to navigating G98 applications for solar installations in the UK, covering common issues, DNO interactions, and key considerations.
UK Rules & DNOs•Updated 11 Jan 2026Intermediate