SIMULATE
Price formation, hands-on.
Pick a European market — its fleet and demand load from ENTSO-E data — then move any capacity, fuel or carbon price and watch price formation respond.
generation stacked by marginal cost · solar at 75% of peak for the snapshot hour · hover blocks for detail
hourly clearing prices over a standard demand, solar and wind day-shape · red dots mark negative-price hours
A stylized single-zone merit-order model. Each market is seeded from representative ENTSO-E installed capacity; every value is then editable. Generation clears in marginal-cost order — run-of-river and nuclear are effectively must-run, reservoir hydro clears at its water value, gas and oil at the top — while imports over interconnectors enter as a supply block at the border price, capping the domestic price until they fill. Storage (pumped hydro plus any added battery) charges in the four cheapest hours and discharges in the four dearest. It shows how carbon, fuel prices, renewables, hydro and interconnection reshape price formation; it is a teaching tool, not a forecast of any market.