What you will find on Worthwatt
- Guides on what solar panels and batteries cost, whether they pay back, export tariffs, grants, VAT and planning rules.
- The battery planner, which compares a year of electricity costs for your home with and without a battery. The figures you enter stay in your browser.
- Help checking a quote and an installer before you sign.
- A free quote request. If you ask, we look for an MCS-certified installer who covers your area, and we only pass on your details if you agree.
How we work
Our figures come from sources we open and read, mostly government departments, regulators, official schemes and manufacturers, and each guide lists them with the date we read them. Where we work something out ourselves, we label it as our calculation and show the inputs. Every guide is fact-checked separately from the writing before it is published. The full process is on how we check our figures.
What we will not do
- Invent figures, customers, case studies or reviews.
- Tell you what you will save. We show what homes like yours could save, and what that depends on.
- Talk you into buying when the numbers say no. If a cheaper step, such as a better export tariff, does more for you, we say so first.
Who writes Worthwatt
Everything on the site is written and checked by the Worthwatt team. We only name an expert on a page when a qualified person has actually checked it. Our company details are on our contact page.
Get in touch
Spotted a mistake, or have a question about a request you made? Please use our contact page.