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EV Evidence

Regulation · GB

Smart charging schedules: choose the signal first

A smart schedule is useful only when it follows a verified price or carbon signal and still meets the vehicle's required departure outcome. The current E2 data supports a dated GB carbon forecast and an Ofgem single-rate benchmark, but not a current supplier EV-tariff schedule or savings claim. This page publishes no control sequence; equipment operation remains governed by the exact vehicle and chargepoint instructions.

National Energy System Operator and partners: Carbon Intensity API national forecast

Reviewed

Key facts and evidence

For Great Britain, reviewed on 2026-08-13, smart scheduling is a decision about which dated signal to follow, not a promise of lower cost or emissions. E2 supplies a 2026-08-14 carbon forecast and a current Ofgem single-rate benchmark, while current supplier EV tariff rows remain unavailable and equipment-specific controls stay outside this page.

National Energy System Operator and partners: Carbon Intensity API national forecast

Choose whether a home-charging schedule follows a verified tariff or dated carbon forecast while preserving the required departure outcome and evidence limits.

Cost-led schedule

A cost decision needs the household's current supplier unit rates, exact effective windows and applicable account conditions. The Ofgem single-rate benchmark cannot fill an absent supplier EV schedule or substantiate a savings figure.

Carbon-led schedule

A carbon decision can use the dated E2 forecast only for its stated GB day and Europe/London scope. Recheck a new forecast for another day rather than treating one snapshot as a habitual low-carbon period.

Equipment boundary

The decision record identifies evidence inputs but does not describe model-specific controls, override behaviour or fixed electrical configuration. Those matters remain with current manufacturer instructions and, where installation work is involved, a competent professional.

What to do next

Choose a current account-specific tariff for cost scheduling or a dated forecast for carbon scheduling, and keep the objectives visibly separate.

Immediate action: Record the chosen objective, source date and required departure outcome before relying on a schedule.

  • Stop relying on the schedule when its tariff, forecast date or equipment instructions are missing, stale or inconsistent.

Professional hand-off

  • Use manufacturer support for undocumented controls and a registered competent installer for any fixed electrical change.

Questions this record can answer

What does the sourced evidence say about cost-led schedule?

A cost decision needs the household's current supplier unit rates, exact effective windows and applicable account conditions. The Ofgem single-rate benchmark cannot fill an absent supplier EV schedule or substantiate a savings figure.

What does the sourced evidence say about carbon-led schedule?

A carbon decision can use the dated E2 forecast only for its stated GB day and Europe/London scope. Recheck a new forecast for another day rather than treating one snapshot as a habitual low-carbon period.

What does the sourced evidence say about equipment boundary?

The decision record identifies evidence inputs but does not describe model-specific controls, override behaviour or fixed electrical configuration. Those matters remain with current manufacturer instructions and, where installation work is involved, a competent professional.

Sources