Summary
Dutch energy pricing turned into numbers you can compare in one turn.
The cost and comparison tools do the tax-inclusive arithmetic that makes Dutch energy offers hard to compare by hand, and the dynamic-price tool reads the day-ahead market directly. Everything is scoped to the Netherlands, and the answers are only as current as the API behind them.
What it is
A server over WattyEnergie's public API for the Dutch energy market: annual cost calculations, contract comparison, day-ahead electricity prices and solar net-metering math.
What you get
- calculate_annual_energy_cost returns an all-in yearly figure for a given electricity and gas usage, taxes included
- compare_energy_deals ranks Dutch energy contracts, with a green-only filter
- get_dynamic_prices reads current EPEX day-ahead electricity prices
- calculate_net_metering works out what solar feed-in is worth under the net-metering rules now being phased out
- get_supplier_list gives the Dutch suppliers it knows about
Requirements
Nothing to sign up for — the server calls WattyEnergie's public API. It runs on Node and needs an internet connection to reach that API.