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5 Nov, 02:11 UK

Partial week · 6 calendar dates

UK Electricity Mix Weekly Report: Sunday 12 July

Declared reporting window: 2026-07-06–2026-07-11 (inclusive). Day boundaries were not preserved. A calendar-date span does not establish complete source-interval coverage. No original report-specific interval-completeness evidence was preserved. Values are public grid intelligence, not billing-grade metering.

Summary

The week from Monday 6 July to Saturday 11 July averaged about 24.1 GW of measured generation, with renewables averaging 40.5% of measured output. The strongest renewable day in the available data was Monday 6 July, when wind, solar and hydro together averaged 60.3% of measured generation. Gas was highest on Thursday 9 July and lowest on Monday 6 July.

For flexible electricity use, the cleanest opportunities are likely to appear when wind is strong, gas is low and demand is not at a peak. This is the foundation for future EV-charging guidance, clean-electricity alerts and weekly newsletter summaries.

The reporting period in key numbers

Average measured generation~24.1 GW across available settlement-period aggregates
Average renewable share40.5%
Highest renewable share60.3% on Monday 6 July
Highest average wind output~9.6 GW on Monday 6 July
Highest average solar output~5.2 GW on Thursday 9 July
Highest average gas output~12.4 GW on Thursday 9 July

What the reporting-period figures show

  • Renewables were strongest on Monday 6 July, when wind, solar and hydro averaged 60.3% of measured generation.
  • Wind was the largest swing factor in the available feed, peaking at about 9.6 GW average output on Monday 6 July.
  • Solar was strongest on Thursday 9 July, averaging about 5.2 GW across settlement periods after embedded-solar backfill where needed.
  • Gas averaged about 8.9 GW across the period, rising highest on Thursday 9 July and falling lowest on Monday 6 July.
  • Measured generation was highest on Thursday 9 July, at roughly 25.9 GW average output.

Renewable and gas comparisons — not carbon rankings

Best low-carbon proxy: Monday 6 July

Historical carbon-intensity aggregates are not yet part of this weekly report feed, so EnergyMix.info uses renewable share and gas output as cautious proxies. Monday 6 July had the strongest renewable share at 60.3%.

Lowest gas proxy: Monday 6 July

Gas generation averaged about 4.2 GW on Monday 6 July. Lower gas periods are often cleaner, but the report does not yet claim this was the lowest-carbon period without historical carbon-intensity validation.

Higher gas output — not a carbon measurement

Highest gas proxy: Thursday 9 July

Gas averaged about 12.4 GW on Thursday 9 July. Gas-heavy periods are usually higher-carbon, but this is labelled as a proxy until historical carbon-intensity highs/lows are added to the report feed.

Wind, solar and gas highlights

Wind

Highest average wind output was about 9.6 GW on Monday 6 July.

Solar

Highest average solar output was about 5.2 GW on Thursday 9 July.

Gas

Highest average gas output was about 12.4 GW on Thursday 9 July; lowest was about 4.2 GW on Monday 6 July.

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Data notes

Compiled by Energy Mix from Elexon generation data and NESO embedded-generation estimates. Energy Mix calculates the totals, averages and comparisons shown here. Source data may be revised. Source attribution does not mean that Elexon or NESO has reviewed or endorsed this report.

Sources: Elexon Insights FUELHH; NESO Historic GB Generation Mix; NESO Demand Data Update. These datasets can share underlying observations; agreement is not independent certification.

Renewable-share and gas-output comparisons are not measurements of carbon intensity. See data sources and methodology for source information. A report-specific reproducible evidence pack was not preserved for this publication.

Original publication introduction and methodology note

A measured weekly report for EnergyMix.info using the available 7-day historical generation feed for Monday 6 July to Saturday 11 July.

This report is generated from the available 7-day historical generation feed and validated against external public data. Carbon-intensity highs/lows and interconnector summaries should be treated as future additions unless they are present as validated historical aggregates.

Preserved as part of the original publication. Any broad validation wording in this note should not be read as proof that all reporting days or narrative claims were checked.

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