The energy library
What would you
like to understand?
10 guides for “heat pump”
Browse all guides ↗Guides · 3 min
EV charging costs at home: work out your mileage, losses and tariff mix
A cheap overnight rate is useful only for the energy you can actually buy at that rate. Build a charging budget around your mileage and the places you charge.
Read the guideSolar Panels · 3 min
How much could solar panels save? Work through your own numbers
Separate avoided electricity purchases from export income, test a worked example and see which assumptions have the biggest effect.
Read the guideSolar Panels · 3 min
Solar panel installation: from first survey to useful handover
A practical homeowner checklist for the survey, proposal, installation, connection paperwork and ongoing support.
Read the guideHeat Pumps · 3 min
Heat pump vs gas boiler: compare running costs using your rates
Work through the same heat demand, understand seasonal efficiency and find the electricity-to-gas price balance that matters.
Read the guideHeat Pumps · 3 min
Choosing a heat pump: compare the design, model and support
The product questions that matter beyond a brand ranking: heat loss, output at design conditions, flow temperature, noise and aftercare.
Read the guideHeat Pumps · 3 min
Heat pump grants: current routes for England, Wales, Scotland and NI
Check the correct funding route for your property, including current Boiler Upgrade Scheme categories and the conditions of the temporary oil/LPG uplift.
Read the guideHeat Pumps · 3 min
Heat pump installation costs: how to read a complete quote
Separate the equipment, heating-system changes and grant assumptions so you can compare the real cost of a heat-pump installation.
Read the guideEnergy Tariffs · 3 min
Time-of-use electricity tariffs: when changing the clock can help
Understand weighted rates, charging windows and the trade-offs for a home with solar, a battery, an EV or a heat pump.
Read the guideBattery Storage · 3 min
5 kWh home battery costs: when smaller storage makes sense
Explore a smaller home battery, the difference between usable capacity and output, and the installation costs a headline price can leave out.
Read the guideBattery Storage · 3 min
Home battery grants and VAT relief: what to check in the UK
Separate battery installation VAT relief from grant funding, and find the official routes relevant to your nation and property.
Read the guide