Overview

• Day-ahead prices for Saturday settled as low as -42p/kWh, according to Epex Spot SE data.
• Octopus said Agile tariff customers could pay nothing or even be paid during negative half-hours today.
• The supplier reported five negative-price hours already and flagged further drops at 12:30, 13:30–14:30, 21:30 and 22:30, totaling nine below-zero hours.
• Octopus is running Saving Sessions that give all its customers three free hours: 12:00–14:00 Saturday and 11:00–12:00 Sunday.
• Storm Amy’s winds lifted generation to over half of demand with output projected up to about 24 GW, while most households remain on fixed or price‑capped deals and Agile rates can spike to 100p/kWh.