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🇬🇧 United Kingdom · Stromfee.cloud

Learn — a battery's revenues

6 lessons on how a battery earns on the British electricity market: negative prices, Day-Ahead curve, market types, regulation, real asset — real ENTSO-E zone GB data.

← United Kingdom
Stromfee.cloud · 🇬🇧 United Kingdom

How a battery earns
on the British electricity market

6 short lessons: how a battery earns on the British electricity market. The charts use REAL prices from our database (ENTSO-E, zone GB) — the conceptual steps say so openly, instead of showing invented figures.

D1

Negative prices intensify

Share of negative Day-Ahead intervals per month in Great Britain — real market data, no model.

D2

The revenue potential per market

The menu of a battery's revenue sources: Day-Ahead arbitrage · intraday · reserves. ALTERNATIVES, not additive.

D3

The real Day-Ahead price curve

The raw hourly Day-Ahead curve for Great Britain for the last quoted day — red line: below it, prices are negative.

D4

The market types in detail

Detailed view of the electricity markets for storage: Day-Ahead, intraday, balancing, reserves FCR/aFRR/mFRR, capacity.

D5

Reality anchor: real asset vs. potential

A 1.5 MW battery — our GERMAN reference asset (GDPR-anonymised): realised arbitrage margin vs. theoretical potential.

D6

All markets side by side

All of a battery's revenue sources seen together — energy products move continuously, capacity in steps.

FAQ

Frequently asked questions

What is the day-ahead electricity price in United Kingdom today?
On 2026-06-13 the day-ahead spot price in United Kingdom averages 27 £/MWh (low -23 £/MWh, high 83 £/MWh). Source: ENTSO-E day-ahead auction.
How much can a 1 MW battery earn in United Kingdom today?
With perfect foresight, the daily revenue ceiling of a 2-hour battery (1 MW / 2 MWh) on 2026-06-13 is about 194 £ – pure day-ahead arbitrage, excluding intraday and balancing markets.
Are there negative electricity prices in United Kingdom?
On 2026-06-13 there are 15 quarter-hours with a negative day-ahead price in United Kingdom; over the last 30 days there were 52 negative quarter-hours in total.
Does United Kingdom have a negative-price rule like Germany's §51 EEG?
National regulation differs per market and is not asserted here in blanket form. The market-specific negative-price rulebook – where documented – is at /gb/rules/.
Where does the data come from?
All figures are ENTSO-E day-ahead prices, processed via stromfee.ai / ClickHouse, updated daily.