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Data centres are eating grid capacity meant for homes
New rules target speculative data centres hoarding grid capacity. What this means for UK homeowners waiting for heat pump or EV charger connections.
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News
Fuse Energy: What UK Homeowners Need to Know
Which? investigates Fuse Energy. We explain what the review means for your bills, EPC plans, and whether to switch or wait.
News
Plug-in solar panels could hit UK shops this year
Plug-in solar panels may soon be sold in UK shops. We analyse the costs, EPC impact, and whether they're a real solution for homeowners.
News
Ofgem targets speculative grid connections to cut homeowner costs
Ofgem proposes clearing the grid connections queue of speculative projects. For UK homeowners, this could mean faster heat pump and solar installs and lower bills.
News
Interest rates held as energy costs push inflation higher
The Bank of England holds interest rates as rising energy costs and memory chip prices threaten to lift inflation. What this means for UK homeowners and their energy bills.
News
VAT cut on electricity bills what it means for your home
The government suspends VAT on household electricity bills. We analyse the savings, the catch, and what it means for your EPC and energy upgrades.
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Boilers & Heating
Radiator oversize factor explained for low flow temperatures
MCS 021, the Heat Emitter Guide that UK heat pump installers size radiators from, tells them to multiply each room’s heat loss by 3.1 before choosing a radiator for a system designed to run at 41-45°C. At 51-55°C that multiplier drops to 1.90. Those two numbers decide whether your existing radiators stay on the wall […]
Home Insulation
Ventilation after insulation and how to avoid mould
Approved Document F contains a chart that tells you, in around five minutes and with no equipment, whether the energy efficiency work done to your home has left it under-ventilated by the standard building control uses. It sits in Section 3, it is called Diagram 3.1, and you use it by counting every energy efficiency […]
Energy Saving Guides
Lawful development certificate, what it proves and costs
England’s planning enforcement window rose from four years to 10 years on 25 April 2024, when the Levelling-up and Regeneration Act 2023 rewrote section 171B of the Town and Country Planning Act 1990. Fit solar panels, a heat pump or external wall insulation this year, and if the work turns out to breach planning control […]
Energy Saving Guides
The landlord EPC deadline that matters is 2029, not 2028
The Department for Energy Security and Net Zero (DESNZ) published its government response on 21 January 2026 and confirmed a single compliance date for private landlords in England and Wales, 1 October 2030. There is no 2028 deadline. The 2028 new-tenancy date that appeared in the 2025 consultation was dropped from the final policy, and […]
Energy Saving Guides
Cheapest EV tariff in 2026 depends on your charging window
On 1 April 2026 the government raised the maximum electric vehicle chargepoint grant from £350 to £500 per socket, and most people reading this cannot claim a penny of it. According to GOV.UK’s guidance on the changes, the grant is open to renters, flat owners, landlords and households with on-street parking. Own a house with […]
Energy Saving Guides
Does a home battery without solar panels pay back
Octopus Energy will install a 10 kWh home battery with no solar panels attached from £5,336, on its April 2026 prices. Charge that battery on Intelligent Octopus Go’s 8p off-peak rate, displace 6 kWh of teatime electricity every evening for 300 days a year, and it returns about £308 a year against the capped 26.11p […]