Council decision to grant dated 29 July 2026 with 18 conditions. No final-grant document or commencement proof was established in the selected review. The fire report was issued 23 June 2023 and received again 4 June 2026; its historical product basis must remain visible.
A240 MWh battery-storage decision with 18 conditions
Council decision; final grant not established · Exact council application 2660898; stated decision scope
What the evidence says
The council decision dated 29 July 2026 covers a 240 MWh battery-storage facility on a site of up to 3.02 hectares, with 31 containerised battery modules,12 inverters,6 transformers and a 38 kV substation. It is a decision to grant, subject to 18 conditions; the notice explicitly says it is not the final grant.
Why it may matter — interpretation
Interpretation: identifies the separate storage, conversion and grid-connection packages.
What is not established
A final grant, equipment purchase, installation and commissioning are not established by the selected records. The older report’s MW wording is not substituted for the decision’s MWh measure.
Inspect the evidence
Somerset battery project: council decision and 18 conditions · p.1
240MWh Battery Energy Storage Systems · Issued 2026-07-29 · Decision under section 34; not the final grant · Checked 2026-09-05
240MWh Battery Energy Storage Systems
A10-year development window and 30-year operating period
Council conditions · Council conditions 2 and 4 for the battery facility
What the evidence says
Condition 2 specifies 10 years to carry out the development. Condition 4 specifies 30 years from commissioning and requires a restoration and equipment-removal plan to be agreed before commencement. These are separate periods with different starting points.
Why it may matter — interpretation
Interpretation: separates delivery and decommissioning obligations.
What is not established
No actual commissioning date or agreed restoration plan was found in the selected evidence.
Inspect the evidence
Somerset battery project: council decision and 18 conditions · p.2
30 years from the date of the commissioning · Issued 2026-07-29 · Decision under section 34; not the final grant · Checked 2026-09-05
30 years from the date of the commissioning
A named reference battery system, with final selection still open
Historical reference design; construction review required · Historical technical report received again on 4 June 2026; no product selection claim
What the evidence says
The June 2023 report uses Wartsila GridSolv Quantum as its reference system and describes LFP batteries, a 60-minute enclosure fire rating, IP55 protection and available water or gas suppression. It expressly warns that its advice is not a system specification and must be reviewed before construction.
Why it may matter — interpretation
Interpretation: gives equipment researchers a traceable design reference and the reason it cannot be treated as an order.
What is not established
The final model, changed product, suppression choice, procurement and installed equipment are not established.
Inspect the evidence
Somerset battery project: Fire Safety Assessment and Advice Report · p.9
Wartsila GridSolv Quantum energy storage system · Issued 2023-06-23 · Issue 01; historical report lodged again in June 2026; received 2026-06-04 · Checked 2026-09-05
Wartsila GridSolv Quantum energy storage system
Somerset battery project: Fire Safety Assessment and Advice Report · p.37
This should not be interpreted as a system specification · Issued 2023-06-23 · Issue 01; historical report lodged again in June 2026; received 2026-06-04 · Checked 2026-09-05
This should not be interpreted as a system specification
The council carries the fire mitigation into a condition
Council condition · Council condition 13; implementation and later written agreement remain distinct
What the evidence says
Condition 13 requires the submitted noise and fire-risk mitigation to be implemented unless the council agrees otherwise in writing. The submitted fire advice also requires a review of current products, legislation and final container selection before construction.
Why it may matter — interpretation
Interpretation: identifies a delivery constraint for the fire-safety package.
What is not established
The selected record does not prove a later review, written variation, fire-service acceptance or installed fire system.
Inspect the evidence
Somerset battery project: council decision and 18 conditions · p.6
shall be implemented in full · Issued 2026-07-29 · Decision under section 34; not the final grant · Checked 2026-09-05
shall be implemented in full
Blue-slate roofing, nap render and galvanised steel doors
Proposed in application · Drawing 205P1: substation building only, not the battery enclosures
What the evidence says
The January 2026 substation drawing labels blue-slate roof tiles, nap-render wall finishes, galvanised steel doors and uPVC gutters, fascia and soffit. The detail applies to the 38 kV substation building.
Why it may matter — interpretation
Interpretation: gives the building trades an evidenced materials package with a precise scope.
What is not established
Final approved substitutions, supplier choices and installed finishes are not established.
Inspect the evidence
Somerset 38 kV substation: plan, elevations and section · p.1
BLUE SLATE ROOF TILES · Issued 2026-01-14 · Drawing 205 revisionP1; received 2026-06-04 · Checked 2026-09-05
BLUE SLATE ROOF TILES
Selected pages of 3 government-published PDFs were visually inspected. The exact council index lists 45 files. Only the cited pages of 3 selected government PDFs were inspected for these findings; other downloaded and indexed files are not counted as reviewed. Proposals do not establish procurement or installed work.