Sector: Real estate
Article 11 of 20 · Sector-specific softwareEnergy data for GRESB and ESG reporting: your portfolio demonstrably on track
Direct answer
GRESB and ESG reporting stands or falls with the underlying energy data: per asset, per meter and where possible per tenant, traceable back to source. COMCAM records that data continuously and supplier-independently, so data coverage is no longer an annual surprise and like-for-like comparisons hold up. You use the same data foundation all year round to steer the portfolio, not just to report after the fact.
- Continuous data coverage per asset
- Traceable to building, meter and tenant
- Like-for-like across the years
- One data foundation for steering and reporting
Annual data gathering versus a continuous data foundation
Every asset manager knows the ritual: the submission window approaches and the data gathering starts all over again. Portals are trawled, property managers emailed, tenants asked for meter readings and spreadsheets stitched together. The result is a report finished just in time, with coverage gaps that only surface when it is too late to close them. COMCAM turns that around: energy data for the entire portfolio is recorded continuously, supplier-independently and traceably, per building, meter and where possible per tenant. Data coverage becomes a dashboard metric instead of an annual discovery, and gaps are flagged the moment they arise. ESG reporting shifts from a data-collection project to an export, leaving you time for what actually matters: genuinely improving the portfolio.
Key points
Timing
Traditional approach
Data gathering starts when the submission nears.
Modern approach
Data is recorded continuously; reporting is an export.
Coverage
Traditional approach
Gaps only surface at the deadline.
Modern approach
Coverage per asset is visible and steerable all year.
Traceability
Traditional approach
Retyped figures are hard to defend.
Modern approach
Every figure traces back to meter, period and source.
Value
Traditional approach
The data serves only the report.
Modern approach
The same data steers the portfolio all year round.
Why ESG reporting gets stuck on fragmented data
Over the years a portfolio accumulates a patchwork of sources: different suppliers, metering companies, portals, and per asset yet another set of arrangements with tenants. With every transaction or contract switch, data access shifts, and tenant consumption behind private meters often stays out of sight. Whoever gathers that by hand every year reports with difficulty, and steers not at all. The solution is not gathering harder, but structurally fixing the data foundation: one central, supplier-independent record in which every building, meter and tenancy relationship has a fixed place.
- Assets, meters, metering points and tenancy relationships structured once.
- Supplier-independent: contract switches do not break the history.
- Tenant data gets a fixed place, including what is still missing.
- Gaps and metering issues flagged as soon as they arise.
- Acquisitions and disposals handled without breaking the series.
From meter reading to reporting indicator
Reporting frameworks do not ask for raw meter readings, but for consistent indicators: consumption per asset per year, data coverage rates, intensity per square metre and comparability across years. That requires fixed definitions: which meters belong to which asset, what is common-area versus tenant consumption, and how a vacancy period is treated. COMCAM sets that structure once and applies it consistently, so like-for-like comparisons hold and every reported figure traces back to the underlying meter data. That is exactly the substantiation auditors, financiers and valuers increasingly demand.
- Consistent definitions per asset, meter and tenancy situation.
- Coverage rates visible per asset and per energy carrier.
- Intensities normalised per m2 and building function.
- Every reported figure traceable to source values.
- Exportable for GRESB, ESG and internal reporting.
More than reporting: the same data steers the portfolio
The real return on a solid data foundation sits outside the submission window. The same data shows which asset is structurally out of step, where night-time use or misconfigured installations cost money and which building deserves retrofit budget first. It makes tenant conversations concrete: not talking about sustainability in general, but about this building's consumption profile. COMCAM is built modularly with a fixed price per meter per month, finalised once the scope is set. In a no-obligation call you discuss, based on your own portfolio data, what coverage, comparison and alerting can look like.
- Prioritise retrofit budget based on portfolio data.
- Hold tenant conversations based on the actual profile.
- Fixed price per meter per month, modularly extendable.
- Final price once the scope is set.
- A no-obligation call with your own assets as the starting point.
Curious what this looks like with your own data?
In a no-obligation call, a specialist looks at your meters, sites and energy questions with you. Response within one business day.
Where this adds value directly
Coverage
Track data coverage per asset throughout the year.
Portfolio
Compare assets consistently, year on year.
Traceability
Substantiate every figure down to the meter.
Frequently asked questions
Practical answers to common questions about this topic.
Question not covered here?
Ask a specialist directly. You will get a response within one business day.
Ask your questionHow do I get consumption data from tenants?
By making tenancy relationships explicit in the data structure, each asset shows which consumption is covered and where data is still missing. That makes the request targeted instead of generic. And once connected, data keeps flowing in continuously instead of being requested anew every year.
Does COMCAM fill in my GRESB submission automatically?
COMCAM is the data foundation, not the submission desk: consumption, coverage and intensities per asset stand ready, consistent and exportable. The submission itself, and its non-energy components, remain with your own team or adviser. The difference is that the energy part is no longer a collection project.
What does this cost for a portfolio?
The model is modular with a fixed price per meter per month, so costs scale with the size of the portfolio. The final price is set once the scope is defined, for instance the number of assets, meters and desired modules.
What happens to the history when an asset is bought or sold?
The data structure records from and until when an asset belongs to the portfolio, so time series and like-for-like comparisons stay clean. History is not lost on a supplier switch or transaction, because the record is supplier-independent.
Is this also usable for CSRD or internal sustainability reporting?
Yes. The same traceable data foundation serves several frameworks at once: GRESB, ESG reporting to investors, CSRD and internal steering. Definitions and source values set once are reused across reports, without double administration.
What is the core of gresb energy data real estate?
GRESB and ESG reporting stands or falls with the underlying energy data: per asset, per meter and where possible per tenant, traceable back to source. COMCAM records that data continuously and supplier-independently, so data coverage is no longer an annual surprise and like-for-like comparisons hold up. You use the same data foundation all year round to steer the portfolio, not just to report after the fact.
What data do I need for gresb energy data real estate?
Start with quarter-hour meter data, invoices, contract data and site characteristics. That makes gresb energy data real estate concrete, comparable and easier to follow up, rather than just a separate report.
When does this topic become relevant for my organisation?
As soon as it touches costs, grid capacity, reporting or daily operations. Also consider related themes such as esg reporting real estate portfolio, collecting tenant energy data and improve gresb data coverage.
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