Guides
Understand before you buy
Short, plain-English guides to how solar and storage work, how to size a system, and what happens during an installation.
For homes
4 min read
How solar panels, inverters and batteries work together
What each part of a home solar system does, where the power goes during the day, and why a battery changes the picture.
Read guide4 min read
What size battery do I need?
How to think about battery capacity, the difference between nominal and usable kWh, and why modular batteries take the pressure off the decision.
Read guide3 min read
Single-phase or three-phase: which SOFAR system fits?
Most UK homes have a single-phase supply, but larger homes, farms and businesses often have three-phase. Here is how that affects your choice of inverter.
Read guide4 min read
What to expect from a solar or battery installation
From the first conversation to switching on: surveys, certification, DNO paperwork and what to ask your installer.
Read guideFor businesses
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