UK renewable project intelligence · REPD 07335

Tollgate Farm Battery Storage

RNA Energy / Harmony Energy Storage/ Tag Energy UK · Battery · Eastern

Open in interactive explorer How forecasting works

Reported capacity49.5 MWInstalled Capacity (MWelec) in the public REPD record

Development stageUnder ConstructionCurrent short status in the latest source snapshot

Screening score70/100Low heuristic screening risk

Planning record

Project Evidence

Source fields are retained from the latest UK Renewable Energy Planning Database snapshot.

TechnologyBattery

Operator or applicantRNA Energy / Harmony Energy Storage/ Tag Energy UK

RegionEastern

CountyHertfordshire

CountryEngland

Planning authorityWelwyn Hatfield

Planning reference6/2017/2340/FULL

CfD allocation roundNot reported

Planning history

Planning Timeline

Planning submitted12 Oct 2017
Planning granted22 Jan 2019
Construction started01 Feb 2022
Latest public record01 Feb 2022

Time to operation

Delivery Signal

Relative two-year evidence for prioritisation, separated from unvalidated literal probabilities and external-risk scenarios.

Two-year signal99/100Stronger relative evidence

Three-year outputResearch onlyNot released as a probability

Five-year outputWithheldInsufficient validated cohorts

Ranking signal only · Moderate public-data coverage

The score is a percentile rank, not a 99% chance of delivery. Use it to prioritise comparable projects, then inspect the dated planning evidence and constraints before making a decision.

Positive public evidence

Construction has started

Risks and missing evidence

Long time in current stage

Source and scope. Project facts derive from the official DESNZ Renewable Energy Planning Database quarterly extract. Delivery signals and screening scores are research enrichments by this platform; public data does not reveal private finance, land, supply-chain or contract terms.