top of page


Why can't I bank a solar generated summer kWh to use in the winter?
Most home solar systems will export on sunny days; our system regularly exports 20+ kWh on a summers day. But solar systems in the UK generate 15% to 20% of their summer output in the winter and obviously our electricity use is much higher in the winter. A customer asked me how could they save that lovely spare summer energy for the winter. They were asking if there's a way we could 'bank' their solar generated energy to then draw from in the winter. Yes, it's an AI generat
Nov 103 min read


Cars, solar panels, batteries, CT Clamps and Henley Blocks
On a Sunday evening you get one of these to exercise your brain. The issue here is that if you want to charge an electric car using any energy supplier's smart tariff low rate period often the wiring means the car will first draw energy from the home battery rather than the grid as the battery is simply doing what it's designed to - meet your home demand. Yesterday (Sunday 12th Oct 2025) this came up on the panel session at Everything Electric too. I get asked about once a f
Oct 133 min read


You Should Get a Battery.
But only with a solar system. Our home battery has stored and supplied almost exactly a quarter of our annual electricity use to the 1st October 2025. We've also exported surplus solar, and run some grid-trade during March to September too. Our system is a 5kWp solar system with 13.5kWh battery and we have an electric car (almost exclusively charged at home) & an air source heat pump. Our home is a 4-bed 1960s house (reasonable insulation) with 3 teenagers that enjoy long hot
Oct 17 min read


Literally growning renewable energy
We love trees and we love wind turbines. So we’ve created some tech that combines the two in order to bring invisible renewable energy to a tree near you. Image https://unsplash.com/@mahkeo on https://unsplash.com/ I’m not talking about sticking a wind turbine poking out of the top of a tree - that would be ridiculous. Inspired by the flexibility of electric wallpaper and the graceful movement of tidal energy generators we’ve created a material that can be wrapped around the
Apr 1, 20233 min read


Hydrogen versus Methane (aka Natural Gas)
Image https://unsplash.com/@andywatkins on https://unsplash.com Yesterday Whitby residents were given the choice of staying with Natural...
Mar 30, 20236 min read


Will our homes ever be more energy efficient?
Yes: If you buy a new home in a few years time the chances are it will be built to the forthcoming Future Homes Standard 2025 and should...
Mar 15, 202312 min read
bottom of page