Guides
Best time to charge an EV
Agile can work for EV charging when you have enough overnight or daytime flexibility.
Short answer
Agile can work well for EV charging if you can give the car a long enough charging window away from the evening peak. The cheapest single half-hour slot is less important than finding several cheap slots together. That is why looking for a stable block matters more than reacting to one unusually low bar.
If you want live context while reading, check the dashboard, test a real run in the appliance timer, set a trigger in alerts, or compare the same day across regions.
Flexibility matters
A flexible charging schedule is what makes Agile useful. If the car must charge at peak time, the tariff is much less attractive. The real advantage comes when you can leave the car plugged in for long enough that the cheapest practical block can do the work. The dashboard helps you see the shape of the day, but the charging decision depends on having enough uninterrupted low-cost time.
Enough charging window
Longer charging sessions need a wider low-cost block. The best 30-minute slot is not enough for most EV use. A single cheap bar is only relevant if it sits inside a wider stretch of acceptable prices. This is why the appliance timer is still useful even though EV charging is not fully specialized in V1.
Compare later with EV-specific tariffs
Agile is not the only option for EV owners. It can still be useful, but dedicated EV tariffs may suit fixed overnight charging habits better. If your car charges most nights at predictable times, a simple EV tariff may be easier to evaluate and live with. Agile becomes more attractive when you can respond to the actual shape of each day rather than charging on the same schedule every night.
Example
A 7kW charger running for 4 hours uses about 28kWh. At 12p/kWh, that session costs about £3.36. At 30p/kWh, it costs about £8.40. That is why a long cheap block matters more than one isolated cheap half-hour.
What to watch out for
Do not assume Agile always beats EV-specific tariffs. If you charge most nights at predictable times, a dedicated EV tariff may be easier to compare. Agile is more useful when you can adjust charging times around the day’s actual price shape.
Related tool
Use the practical view next
Related guides
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Best time to run a washing machine on Agile
The best slot is not always the most practical slot, so compare cheap windows against when you actually need the cycle to finish.
What are negative electricity prices?
Negative prices mean the unit rate drops below 0p/kWh for a slot, but the standing charge still exists.
Reminder
These guides are practical and estimate-focused. They are not personalised tariff advice, and they do not replace a full bill comparison.