Guides
Straight answers before you spend five figures
What systems really cost, which grants you can claim, how payback works and what to check before you sign a quote — written for homeowners in the United States, United Kingdom, Australia and Canada.
Heat pumpsHeat Pump Grants and Incentives by Country
How heat pump support works in the UK, US, Canada and Australia, what usually disqualifies a claim, and how to check you are getting the full amount.
EV chargingEV Charger Installation Cost and Grants by Country
What a home EV charger costs installed, what changes the price on the day, and which grants are available in the UK, US, Canada and Australia.
Battery storageSolar and Battery Payback: What the Numbers Look Like
How pairing storage with solar changes payback, with worked examples for the UK and Australia and the tariff detail that decides the result.
Heat pumpsHeat Pump vs Gas Boiler: Which Is Cheaper to Run?
The running-cost comparison done properly: cost per kWh of heat delivered, what efficiency really means, and the cases where gas still wins.
SolarSolar Incentives and Tax Credits: US, UK, Canada and Australia
How solar support works in each market, whether it is claimed at the point of sale or on a tax return, and the paperwork that protects your claim.
Heat pumpsHow Much Does a Heat Pump Cost in 2026?
Installed prices for air-source heat pumps in the US, UK, Canada and Australia, what pushes a quote up or down, and how much grants take off the total.
Battery storageIs Home Battery Storage Worth It in 2026?
What a home battery actually earns, the four value streams that justify one, and the honest cases where it does not pay back.
SolarHow Many Solar Panels Do I Need?
A sizing guide that starts from your actual electricity usage, not your roof, with worked examples for four typical households.
Buying guideHow to Choose an Accredited Installer: A Buyer's Checklist
What accreditation actually verifies in each market, the questions that separate a good installer from a good salesperson, and the red flags in a quote.
SolarSolar Panel Cost and Payback Period by Country
What a residential solar system costs in each market, how to calculate payback honestly, and why identical systems pay back at very different speeds.
Browse the marketplace
Every market has its own accreditation scheme, grant rules and typical prices. Start with yours, then compare accredited installers near you.