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

Friday 13 Dec 2024 · half-hourly prices

South Eastern England

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

Stats for Friday 13 Dec 2024

18.9p

Cheapest half-hour 3.30am – 4am

73.2p

Dearest half-hour 4.30pm – 5pm

0 hours

Negative prices none on 13 Dec 2024

19.8p avg

Cheapest 3 hours 2am – 5am

34.5p

Average price on 13 Dec 2024

Show as a table

Time	Price
12am – 12.30am	19.2p
12.30am – 1am	22.6p
1am – 1.30am	21.7p
1.30am – 2am	19.5p
2am – 2.30am	20.8p
2.30am – 3am	20.2p
3am – 3.30am	19.2p
3.30am – 4am	18.9p
4am – 4.30am	21.0p
4.30am – 5am	18.9p
5am – 5.30am	23.7p
5.30am – 6am	25.3p
6am – 6.30am	30.7p
6.30am – 7am	36.0p
7am – 7.30am	39.1p
7.30am – 8am	48.7p
8am – 8.30am	44.1p
8.30am – 9am	46.4p
9am – 9.30am	37.5p
9.30am – 10am	37.3p
10am – 10.30am	33.5p
10.30am – 11am	33.5p
11am – 11.30am	34.0p
11.30am – 12pm	33.5p
12pm – 12.30pm	32.3p
12.30pm – 1pm	34.2p
1pm – 1.30pm	34.4p
1.30pm – 2pm	32.3p
2pm – 2.30pm	40.7p
2.30pm – 3pm	39.7p
3pm – 3.30pm	44.6p
3.30pm – 4pm	54.9p
4pm – 4.30pm	61.8p
4.30pm – 5pm	73.2p
5pm – 5.30pm	67.1p
5.30pm – 6pm	66.1p
6pm – 6.30pm	58.1p
6.30pm – 7pm	47.7p
7pm – 7.30pm	36.1p
7.30pm – 8pm	31.2p
8pm – 8.30pm	30.5p
8.30pm – 9pm	26.6p
9pm – 9.30pm	27.3p
9.30pm – 10pm	24.6p
10pm – 10.30pm	24.0p
10.30pm – 11pm	19.9p
11pm – 11.30pm	21.3p
11.30pm – 12am	22.3p