Energy was last better‑than‑free: yesterday Next

On the Agile Octopus tariff, customers get paid to use electricity when there’s too much in the grid.

That’s cheaper than Octopus Energy paying to store it.

The price changes every half-hour.

How free electricity works

Period

Region

Negative prices all weekend

Sat 11 Apr · Sun 12 Apr

What caused it · More notable days

Sunday 12 Apr 2026 · half-hourly prices

South Eastern England

Price for each half-hour
Negative price (you’re paid to use power)

Stats for Sunday 12 Apr 2026

−4.3p

Cheapest half-hour 1am – 1.30am

33.3p

Dearest half-hour 6.30pm – 7pm

13.5 hours

Negative prices in 3 spells

−3.8p avg

Cheapest 3 hours 12am – 3am

6.8p

Average price on 12 Apr 2026

Show as a table

Time	Price
12am – 12.30am	−3.5p
12.30am – 1am	−3.5p
1am – 1.30am	−4.3p
1.30am – 2am	−3.7p
2am – 2.30am	−3.9p
2.30am – 3am	−3.9p
3am – 3.30am	−2.8p
3.30am – 4am	−2.1p
4am – 4.30am	−1.6p
4.30am – 5am	−1.2p
5am – 5.30am	−2.5p
5.30am – 6am	−1.4p
6am – 6.30am	0.1p
6.30am – 7am	1.8p
7am – 7.30am	2.0p
7.30am – 8am	2.9p
8am – 8.30am	−0.3p
8.30am – 9am	1.6p
9am – 9.30am	−1.9p
9.30am – 10am	−1.2p
10am – 10.30am	−1.7p
10.30am – 11am	−2.4p
11am – 11.30am	−0.5p
11.30am – 12pm	−1.7p
12pm – 12.30pm	−2.4p
12.30pm – 1pm	−1.3p
1pm – 1.30pm	−2.4p
1.30pm – 2pm	−3.2p
2pm – 2.30pm	−2.7p
2.30pm – 3pm	−1.5p
3pm – 3.30pm	−3.5p
3.30pm – 4pm	−1.2p
4pm – 4.30pm	11.9p
4.30pm – 5pm	20.3p
5pm – 5.30pm	28.6p
5.30pm – 6pm	29.0p
6pm – 6.30pm	32.4p
6.30pm – 7pm	33.3p
7pm – 7.30pm	23.1p
7.30pm – 8pm	23.8p
8pm – 8.30pm	23.7p
8.30pm – 9pm	24.7p
9pm – 9.30pm	23.4p
9.30pm – 10pm	22.8p
10pm – 10.30pm	21.2p
10.30pm – 11pm	16.6p
11pm – 11.30pm	25.4p
11.30pm – 12am	21.8p