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Wattrail · Smart meter data

Data you can stand behind.

meldra Wattrail, our smart meter data platform, helps electricity network operators, suppliers and settlement teams prove their half-hourly meter data.

Wattrail: open table formats Wattrail: designed for your storage
wattrail.meldra.ai
meldra WattrailEvery reading accounted for
SettlementMetersIngestionVerifierCatalogueAccess
Feeder · monthly settlementsample data
Settled energyReproducible
ReadingsChecked
Missing half-hoursCounted
Half-hourly importone day
MeterPeriodStatus
Meter AFull dayVERIFIED
Meter BOne half-hourMISSING
Meter CFull dayVERIFIED
Products

One product, for teams who have to prove their meter data.

Wattrail is for electricity teams who have to prove their meter data.

Looking for pilot partnersElectricity · network operators · suppliers

Wattrail

Checks every half-hourly meter reading as it arrives, counts the ones that never arrived, and keeps the proof, so a questioned figure can be backed by evidence.

  • Every reading checked as it arrives
  • Missing half-hours found and counted
  • Answers that give the same figure when re-run
  • Designed to sit beside your meter data system
Wattrail · by team

Built for the people who answer for the numbers.

Wattrail

Answer a questioned figure with evidence.

When a counterparty or regulator challenges a figure, substantiating it today means pulling readings by hand and writing a narrative. Hand back the figure, the snapshot it came from and the checks behind it instead.

  • Re-runnable answers. The same query on the same snapshot returns the same number.
  • Per-reading status. See exactly which readings were verified, and which were missing.
  • A re-run, not a rebuild. No more reconstructing a figure from source extracts by hand.
How answers carry their evidence →

The question you get asked

“Your settlement figure for this feeder looks high. Prove it.”
Figureas settled
Snapshotrecorded with the answer
Contributing rowsall verified at ingest
Statusreproducible
Wattrail

Find the missing reading where it went missing.

Readings for each meter-day are chained in sequence. A broken link is flagged where it occurs, instead of quietly disappearing into an average.

  • Gaps as data. Each missing half-hour is stored and can be listed, not just logged.
  • Your vocabulary. Tables use mpan, settlement_period, feeder_id, gsp_group.
  • Bad readings refused. Changed, repeated or unknown-meter readings are refused and recorded.
How gap detection works →

The question you get asked

“Why is this meter short of readings for that day?”
Readings receivedshort of a full day
Missing half-hourpinpointed
Recordedwhen the day closed
Other periodsverified
Wattrail

Your data is kept separate, and only the right people see it.

Each organisation's data is kept apart from every other's, and your administrators decide who can see what. Readings are stored with their check results, in an open format.

  • Organisations kept apart. Every request is limited to your own organisation's data.
  • Access by role. People see only the data their role allows.
  • Export and UK hosting. Both are being built. Ask us where they stand.
Where your data lives →

The question you get asked

“Who can see our data?”
Separationper organisation
Accessset by role
Formatopen, not proprietary
Export, UK hostingbeing built
Wattrail · why it matters

What a challenged figure really costs you.

Every disputed settlement figure and regulator query is paid for in senior people's time. meldra aims to turn that time into a re-run of the same question on the same data.

Time

Substantiating a figure becomes a re-run of the same query on the same snapshot, not days of rebuilding it from extracts.

Risk

Missing or altered readings are flagged where they happen, so your team finds them before a counterparty or regulator does.

Evidence

You hand back the figure and the record of exactly which data produced it, instead of a written explanation.

Estimate it with your own numbers

Spent substantiating figuresEnter your numbers

Hypothetical example, not a measured or industry figure. Replace the inputs with your own; nothing is sent anywhere.

How Wattrail works, step by step →

Built for regulated data

Governance your board can sign off.

Energy data ends up in front of regulators, auditors and counterparties. meldra keeps you in control of it, and every claim we make can be checked.

Your data, your estate

Meter data stays on storage you own. Leave at any time and it remains readable.

Audit-ready by design

Every figure carries the snapshot it came from, so auditors can reproduce it.

Privacy by default

Least-privilege access, and our terms set out UK GDPR and EU GDPR rights.

No surprises

We publish how we measure and what isn't finished, so your due diligence is quicker.

Have a figure that keeps getting questioned?

Talk to us about a Wattrail pilot.