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

Price spike, Agile hits its 100p cap (the December “dunkelflaute”)

Wed 11 Dec · Thu 12 Dec · Fri 13 Dec

What caused it · More notable days

Wednesday 11 Dec 2024 · half-hourly prices

South Eastern England

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

Stats for Wednesday 11 Dec 2024

18.0p

Cheapest half-hour 12am – 12.30am

97.6p

Dearest half-hour 4.30pm – 5pm

0 hours

Negative prices none on 11 Dec 2024

20.1p avg

Cheapest 3 hours 2am – 5am

42.9p

Average price on 11 Dec 2024

Show as a table

Time	Price
12am – 12.30am	18.0p
12.30am – 1am	23.1p
1am – 1.30am	20.3p
1.30am – 2am	20.6p
2am – 2.30am	20.2p
2.30am – 3am	19.6p
3am – 3.30am	20.1p
3.30am – 4am	20.1p
4am – 4.30am	20.3p
4.30am – 5am	20.1p
5am – 5.30am	20.6p
5.30am – 6am	20.8p
6am – 6.30am	21.4p
6.30am – 7am	32.8p
7am – 7.30am	32.5p
7.30am – 8am	47.1p
8am – 8.30am	44.7p
8.30am – 9am	46.9p
9am – 9.30am	44.6p
9.30am – 10am	46.1p
10am – 10.30am	46.2p
10.30am – 11am	46.2p
11am – 11.30am	49.0p
11.30am – 12pm	49.5p
12pm – 12.30pm	50.6p
12.30pm – 1pm	56.9p
1pm – 1.30pm	62.4p
1.30pm – 2pm	55.6p
2pm – 2.30pm	53.8p
2.30pm – 3pm	57.5p
3pm – 3.30pm	62.4p
3.30pm – 4pm	78.1p
4pm – 4.30pm	91.1p
4.30pm – 5pm	97.6p
5pm – 5.30pm	91.1p
5.30pm – 6pm	85.6p
6pm – 6.30pm	83.6p
6.30pm – 7pm	69.9p
7pm – 7.30pm	48.0p
7.30pm – 8pm	34.7p
8pm – 8.30pm	37.4p
8.30pm – 9pm	28.9p
9pm – 9.30pm	34.6p
9.30pm – 10pm	25.2p
10pm – 10.30pm	31.0p
10.30pm – 11pm	20.7p
11pm – 11.30pm	28.2p
11.30pm – 12am	23.6p