Energy
Energy & utilities guides
Understand tariffs, switching, the price cap and how your bills work — in plain English so you can decide with confidence.
What do you need to work out?
Pick the closest match. Each path leads to a curated cluster of guides.
I want to switch supplier
When, how, what to check before you go.
4 guides →I don't understand my bill
Reading bills, the price cap, what charges mean.
11 guides →I'm struggling to pay
Hardship funds, grants, repayment plans, your rights.
3 guides →I'm thinking longer term
Heat pumps, solar, EVs, smart meters, EPCs.
3 guides →Editor’s picks
See all 23 guides →Core Guide
11 guidesDeep Dive
3 guidesThe full library
Showing 4 guides of 23Key Guide
Switching Energy Suppliers: A Simple How-To Guide
- Switching is administrative only — supply is never interrupted
- Most switches complete in around five working days (after cooling-off)
- You have a 14-day cooling-off period
- Exit fees may apply on fixed tariffs
- You can switch penalty-free within 49 days of contract end
- Smart meters usually remain fully functional
- Final bills must be issued within six weeks
Understanding Your Energy Bill
- Bills are calculated using kWh usage
- Unit rate × consumption = usage cost
- Standing charge applies daily
- VAT: 5% on gas; electricity is 0% until 31 March 2027
- Direct debit smooths seasonal variation
Fixed and variable energy tariffs
- Fixed tariffs lock your unit rate for a set period
- Variable tariffs can rise or fall with market changes
- The Energy Price Cap limits most standard variable tariffs
- Fixed tariffs often include exit fees
- The best choice depends on risk tolerance and market conditions
Understanding Smart Meters
- Smart meters send readings automatically
- Bills are based on actual usage
- They do not automatically reduce bills
- You can decline installation
- Data privacy is regulated