When wholesale day-ahead prices drop below your supplier's feed-in markup, the moments where you'd normally export solar power become moments where you pay for it. This service publishes those windows as a calendar feed your phone can subscribe to.
ANWB Dynamic customers
Subscribe to:
https://solar.codefactoring.nl/anwb.icsOn iPhone: Settings → Calendar → Accounts → Add Account → Other → Add Subscribed Calendar → paste the URL.
Markup model: best-fit estimate of 0.02 €/kWh subtracted from wholesale. Verify against your ANWB contract.
Other suppliers
Coming soon. To request your supplier or report a markup change, mail rob@opensolutions.nl.
Sources
- Wholesale prices: ENTSO-E day-ahead, NL bidding zone, 15-minute resolution
- Supplier markups as of 2025-12-07; subject to change