Methodology & data use

Short version: we use public data only, and we never ask you for commercially sensitive information.

How we score projects →

What we do

We collect published registers and datasets, clean and join them (for example, linking a CfD unit to its grid connection entry), and present the result with screens and scenario tools. Where a match or a classification is uncertain, we say so.

What we do not do

Sources and licences

SourceLicence
Low Carbon Contracts Company (CfD Register); DESNZ publicationsOpen Government Licence v3.0
National Energy System Operator (TEC Register and other datasets)NESO Open Data Licence
Elexon BMRSBMRS data licence terms
Distribution network operator open data (UK Power Networks, SP Energy Networks, Electricity North West, SSEN Distribution)CC BY 4.0
Northern Powergrid open dataNorthern Powergrid Open Data Licence v1.0

Contains public sector information licensed under the Open Government Licence v3.0. Supported by National Energy System Operator (NESO) Open Data.

How we score

Every score is a sum of simple, published rules applied to public register fields. No machine learning, no hidden inputs, no private data. Each project page lists exactly which rules fired.

All scores are indicative. They are editorial judgements, not calibrated predictions, and are not legal, financial or investment advice. Weights will change as we learn; changes will be logged here.

Inputs

Date-slip risk (0–100, higher = more likely the connection date moves)

RulePoints
First, the stage. Built projects score 0. Projects that are under construction, generating, past a final investment decision or holding a CfD or investment contract already have their grid connection agreed, so for them we score delivery risk: is the build running late? Everything else is still in the connection queue, so we score queue risk: is it likely to keep its place and date? Connections reform (Gate 1 and Gate 2) only affects the queue score. We work out the stage from the TEC register, the matched CfD and a short list of facts for major projects, each taken from GOV.UK, NESO, Ofgem or the developer. Where a sourced fact and the register disagree, the sourced fact wins: for example, a project the developer says is still commissioning is scored on delivery risk even if the register already shows it as Built.
Delivery: energised / under construction / FID or CfD5 / 10 / 15
Delivery: connection date passed while unbuilt (grows with months late, max 25)10–25
Delivery: CfD awarded, Milestone Requirement not yet confirmed / matched CfD terminated5 / 25
Queue: Scoping / Awaiting Consents / Consents Approved (or DCO granted)30 / 20 / 10
Queue: Gate 1 under connections reform / no reform position shown / Gate 215 / 5 / 0
Queue: connection date already past / no connection date25 / 10
Queue: oldest quarter of applications still without consent10
Queue: holds a CfD award / matched CfD terminated−10 / 20
Queue: change of 500 MW or more; connection site with ≥15 / ≥6 other unbuilt entries5; 15 / 8
Queue: customer company not found on Companies House5
Each recorded change to the connection date in our snapshots (max 30 queue, 20 delivery)10 / 5

Every score lists its three main drivers and a confidence level: high where a sourced fact supports the stage, medium where the registers agree on it, low where the stage rests on the register status alone.

Readiness (0–100, higher = more mature)

RulePoints
TEC status: Built / Under Construction / Consents Approved / Awaiting Consents / Scoping100 / 80 / 55 / 30 / 10
Gate 2 offer (not built) / FID or construction shown by a sourced fact+10 / +25
TEC shows Built but a sourced fact says the project is still commissioning: scored as under construction80
Some MW already connected (not built, or still commissioning)+10
CfD units: LCCC status Live post-FIC / Live pre-FIC / Pre-Start / Pre-MDD / Terminated100 / 90 / 75 / 50 / 0
CfD unit whose matched TEC entry is built or under construction+10

CfD-eligibility fit (TEC entries without a CfD)

A rough check of whether an entry has the shape of a CfD applicant. It is not an eligibility decision: qualification turns on the Allocation Framework and the rules, which this does not assess.

RulePoints
Plant type includes a technology with an AR8 administrative strike price (offshore/onshore wind, solar, tidal, wave, hydro, geothermal)40, else score 0
Capacity 5 MW or less where a >5 MW threshold applies−30
Consents Approved or Under Construction / Awaiting Consents (planning proxy)30 / 12
Connection date between now and 2031 / later20 / 5
Gate 2 marker+10
Already holds a CfD or Builtn/a or 0

Opportunity screen

Applied to TEC entries not built, under construction, past a final investment decision or holding a live CfD. Entries scoring 40 or more appear in the screener.

RulePoints
Connection date passed without being built30
Oldest quartile of Project Number (a proxy for application age, an assumption) and still pre-consent20
Change of 300 MW or more15
Gate 1 under connections reform10
Connection date 2035 or later10
Matched CfD terminated, or past its expected start while still Pre-Start15
20% of date-slip risk0–20

Matching CfD units to TEC entries

The CfD register and the TEC register share no common identifier, so we link them by comparing each CfD unit with likely TEC entries.

Accepted automatic links are labelled high, medium or low confidence according to how strongly the evidence agrees.

Match rateThis methodPrevious (name substring)
All CfD units161 / 612 (26%)124 / 612
Transmission-connected CfD units141 / 191 (74%)101 / 191
Confidence splithigh 112, medium 21, low 2, checked by hand 26

Most distribution-connected CfD units (mainly smaller solar) are not in the TEC register at all, so a low overall rate is expected. A manual check of a sample found that most errors are in the low band and with phased offshore projects (a phase matched to a sibling platform). Unmatched transmission units include projects registered under abbreviations (e.g. "EA3") and tidal berths.

Queue position

The public register does not publish NESO's queue order. We show the entry's rank by MW Effective From (ties by project number) among not-yet-built entries at the same connection site, and nationally. Treat it as orientation only.

Known limitations

Limits

Registers lag reality and sometimes contain errors. Figures are a snapshot of the latest published data. Check primary sources before relying on any figure.