This page is the central log of customer-facing changes to the Gridio Connect API and the smart charging platform behind it. Major features, new endpoints, behavior changes, and notable upgrades land here in reverse chronological order.

Per-page Changelog tables on the individual documentation pages remain the source of truth for narrow updates; this page is for the round-ups you'd want to highlight to your team or your end users.

2026-06-05 — Solar-Aware Charge Planning is now available

Solar-Aware Charge Planning is now live for enrolled customers. For vehicles enrolled in the program, the Gridio charging engine reduces planned overnight grid charging by the energy the vehicle is expected to be able to draw from forecasted solar production the next day.

The vehicle continues to reach its configured target State of Charge by the configured deadline — this release only changes when grid charging is scheduled within that window. The result is that more of the customer's own solar generation goes into the vehicle and less of the charging bill comes from grid energy.

Highlights

• Next-day PV forecast feeds directly into the overnight charging plan.
• Forecast realisation is monitored throughout the day; if PV under-delivers, missed energy is topped up from the grid before the deadline. Customers don't arrive at a half-charged car because of a cloudy morning.
• The customer's weekday charging schedule is honored end-to-end: no charging activity — solar or otherwise — happens during user-defined inactive hours.
• The feature degrades gracefully. If forecast data is unavailable for any reason, the engine reverts to the standard price-optimised plan and the vehicle still meets its deadline.

Behaviour changes

• Charge plans for enrolled vehicles now incorporate solar forecast. The number of grid hours visible in the charge plan can be lower than the vehicle's nominal time-to-full whenever a useful forecast is available for the home location.
• Inactive hours in the weekday schedule now apply to PV-triggered charging. Previously, the charging engine could start a vehicle on excess solar even during a user-defined inactive period. From this release on, an inactive period is fully respected — no charging is started, modulated, or stopped by the engine during that period.
• Sensible defaults for missing vehicle metadata. When a vehicle does not provide its maximum charge power or battery capacity through the API, the charging engine now uses 7.2 kW and 80 kWh respectively. Vehicles that already supply these values are unaffected. Providing the real values still produces more accurate plans.

How to enable for a customer

Solar-Aware Charge Planning is opt-in per vehicle during the early-access phase. To enroll a vehicle or fleet, contact your Gridio account representative. Once enrolled:

1. Make sure the vehicle's home location has accurate geographic coordinates and a timezone.
2. Make sure at least one inverter at the location is registered with its identifier, installed PV capacity, cut-in threshold, and a recent stream of PV telemetry.
3. Make sure the vehicle, the location, and the inverter all reference the same location identifier.