hours
The chosen clock times and prices — ready for wallbox, storage or heat pump.
Live · Windows Flex
Best hours of the week — including Windows Flex
Pick EV, battery or heat pump: the demo shows the cheapest hours in the 7-day window — including Windows Flex for wallbox and relay slots.
Example: EV overnight
20 kWh, 11 kW wallbox, window 22:00–06:00. Windows does not take the whole night — only the three cheapest hours in it.
- Device
- EV 11 kW
- Energy
- 20 kWh
- Cheapest hours
- 01–03
Three hours in the night window the EMS can set:
01:00
02:00
03:00
Illustrative example. The live demo below uses real 7-day prices.
The best hours of the week
Pick a scenario, set the window and hour count, get text and a table. Same prices as live electricity prices.
How the demo works
One window, N hours, one ranking.
-
Pick a device
EV, storage, heat pump or export fills start, end and hour count.
-
Cheapest hours
Windows takes the N cheapest (or priciest) hours in the window — default across the whole week.
-
A number for the EMS
Hours also says how many hours this plant needs. This demo shows the window.
What Windows returns
GET /v1/decision/windows — the N hours, not the whole curve.
Energy or count
Either <code>count</code> or <code>energy_kwh</code> plus power — Windows computes the hours.
Cheap or expensive
Charge in the valley, export on the peak — <code>mode</code> and <code>role</code> set the direction.
In short
How is this different from Hours?
Windows picks the N cheapest hours. Hours computes how many hours storage, load and PV need now — and at which clock times.
Is this the Windows API?
The demo uses the same logic internally. Spec and parameters are under Windows docs. No copy-paste API link from the demo.
Where do I see raw prices?
On Live electricity prices — seven days, hour by hour.
Get the window into your EMS
Community to try. Spec and quick start to integrate. Hours when the battery sets the hour count.