Carbon numbers your board, your funder and your auditor will accept
Spreadsheet carbon accounting falls apart under scrutiny. HeatFlow ties every reported tonne of CO₂e back to a specific meter, period and conversion factor - so the savings stand up.
BEIS / DESNZ carbon factors
Calculates CO₂ and CO₂e using the UK Government greenhouse gas conversion factors (0.18 kgCO₂/kWh natural gas) - the figures auditors and funders expect to see.
Baseline-to-actual carbon tracking
Establishes a defensible baseline from historical bills or meter data, then tracks tCO₂e avoided per intervention, per site and across the estate.
Board, ESG & funder-ready reports
Branded PDF + CSV exports suitable for board packs, sustainability reports, PSDS / SHDF grant evidence and external assurance.
Auditable evidence chain
Every reported figure is timestamped and traceable back to source meter readings - supports compliance-ready records and audit trails.
Scope 1 & 2 visibility
Gas and on-site fuel combustion (Scope 1) and purchased electricity (Scope 2) reported alongside each other for combined commercial reduction targets.
Multi-site, multi-utility roll-up
Estate-wide totals plus drill-down by site, building, meter or intervention - built for commercial portfolios, not single houses.
From meter reading to board slide
1. Capture
Half-hourly meter data ingested from wM-Bus, LoRa, NB-IoT, Modbus, CSV uploads or direct API feeds. Manual readings and bill uploads supported where meters aren't present.
2. Baseline
A defensible pre-intervention baseline is built from historical consumption - weather-normalised where appropriate - so post-intervention savings are comparing like with like.
3. Convert
Consumption is converted to CO₂e using BEIS / DESNZ factors (natural gas, electricity grid, on-site fuels) with the factor version recorded for audit.
4. Report
Branded PDF and CSV outputs covering headline tCO₂e avoided, intervention-level attribution, site-by-site progress and trend charts - ready for board packs, ESG disclosure and grant evidence.
Frequently Asked Questions
What is carbon reporting software?
Carbon reporting software converts energy consumption (kWh of gas, electricity, heat, fuel) into carbon emissions (kgCO₂ / tCO₂e) using recognised conversion factors, and produces the reports needed for board, funder and regulator audiences. HeatFlow.ai is UK-focused carbon reporting software for commercial estates, plant rooms and heat networks, backed by Adapt Gas.
Which carbon conversion factors do you use?
By default HeatFlow uses the UK Government BEIS / DESNZ greenhouse gas conversion factors - 0.18 kgCO₂/kWh for natural gas, with electricity factors updated annually. Custom factors can be configured per estate where required.
Does it support PSDS, SHDF, SECR or ESOS reporting?
HeatFlow provides the underlying kWh, £ and tCO₂e evidence those frameworks require, in timestamped and source-tagged form. It supports compliance-ready records and audit trails; formal compliance sign-off remains the responsibility of the reporting entity and its assurer.
Is it suitable for whole-estate decarbonisation tracking?
Yes. HeatFlow rolls up emissions across hundreds of meters and sites, attributes savings to specific interventions, and shows progress against board-level reduction targets.
Can it be used as evidence in grant funding bids?
Yes. Many clients use HeatFlow baseline data and savings evidence inside PSDS and SHDF bids, and to demonstrate delivery of committed reductions post-award.
How does HeatFlow link to Adapt Gas?
HeatFlow.ai is owned and operated by Adapt Gas Ltd - a UK commercial gas engineering, heating, decarbonisation and energy reduction business. Reporting is paired with engineering capability to actually deliver the carbon reductions being reported.