1) Check eligibility with your supplier
Confirm your current meter type, tariff, and whether your property has suitable connectivity for a smart installation.
SMART CHARGING BASICS
Smart meter for EV charging: what you need to know
A smart meter is usually the key to cheaper overnight EV charging. This guide explains why suppliers require one, how installation works, and what to check once it is live.
WHY IT IS REQUIRED
Why EV tariffs usually need a smart meter
Time of use EV tariffs apply different prices at different times of day. To bill this correctly, suppliers need automatic usage data at short intervals, typically every 30 minutes.
Smart meters send that data securely. Without it, suppliers cannot reliably verify when charging happened, which means the overnight EV rate cannot usually be applied.
A smart setup can also enable app based scheduling, automated off peak charging, and more accurate billing, especially for homes switching between fixed and variable plans.
INSTALLATION PROCESS
How to get your smart meter installed
2) Book an appointment
Choose an installation slot, keep meter access clear, and have your account details ready for the engineer visit.
3) Confirm setup after fitting
Check your account shows smart reads and that your EV tariff terms, charging window, and unit rates are correctly applied.
AFTER INSTALLATION
What to do once your meter is live
Start by reviewing your first bill period to make sure overnight EV rates are being applied as expected. If you are using scheduled charging, align your charger timer with the exact tariff window.
Then compare outcomes over a full month. Many drivers save most when they combine smart meter data, overnight windows, and occasional public top ups only when needed.
Compare tariff options
Review available EV tariffs in your area and check contract terms.
Compare tariffsModel your charging costs
Estimate monthly EV costs and test different usage scenarios.
Open EV calculatorFixed vs variable planning
Use a scenario tool to test rate changes before committing to a long contract.
Compare fixed vs variableCOMMON QUESTIONS
Smart meter and EV tariff FAQs
Do I need a smart meter for every EV tariff?
Most time of use EV tariffs require a compatible smart meter because suppliers need half hourly data to apply low overnight unit rates. Some standard tariffs do not require one, but they usually do not include dedicated EV charging windows.
Can I still charge at home without a smart meter?
Yes. You can charge from a home point or a three pin socket without a smart meter, but you may miss out on specialised EV rates and automated smart charging features.
How long does smart meter installation take?
A typical appointment takes around one to two hours. The engineer replaces your existing meter, checks communications, and confirms your in home display and account details.
What should I do if my smart data is not updating?
Contact your supplier first and ask them to check meter commissioning and network connectivity. Keep manual readings until the issue is fixed so billing remains accurate.