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EWRB Third-Party Verification

Buildings of 100,000 square feet and over must have their energy and water benchmarking report verified by a certified professional — in the first reporting year, and once every five years after that. It is a recurring statutory obligation, and relatively few firms are positioned to perform it.

What verification is, and what it is not

Verification is an independent check that the data you reported is accurate, complete and correctly classified. A certified professional reviews the underlying utility records and property characteristics against what was submitted, and confirms — or corrects — the filing.

It is not an audit. Verification tells you whether your reported numbers are right. An audit tells you why they are what they are and what to do about them. Owners routinely confuse the two, and buy the wrong one.

Who has to have it done

Verification requirement
Applies toFrequencyPerformed by
Buildings of 100,000 sq ft and over reporting under Ontario EWRBFirst reporting year, then once every five yearsA certified professional, independent of the filing
The part owners miss

Verification is recurring. It is not a one-time exercise at first registration. Five years passes quietly, and the obligation returns whether or not anyone at the building remembers it. If your building first reported in 2022, verification is due again — check the date.

What a verification covers

  1. Property characteristics. Gross floor area against the measurement standard, use types and their proportions, occupancy and operating hours, and any characteristics affecting the ENERGY STAR score.
  2. Meter inventory. That every meter serving the building is accounted for, and that none serving other premises is included.
  3. Utility data. Twelve consecutive months, reconciled against source bills or utility-supplied data. Estimated reads identified. Gaps identified.
  4. Tenant data completeness. Whether whole-building consumption genuinely includes tenant-metered load.
  5. Calculation review. Energy use intensity, weather normalization where applied, and score derivation.
  6. Sign-off by the certified professional, with the documentation the regulator requires.

What verification usually finds

In our experience the same handful of issues account for most corrections:

  • Floor area wrong. Often because parking, mechanical space or unconditioned area was included or excluded incorrectly. It shifts every intensity metric.
  • A meter missing. Particularly on sites with multiple buildings, or where a tenant added service.
  • Use type misclassified. Which means the building has been compared against the wrong peer group, sometimes for years.
  • Estimated reads treated as actuals. Producing year-over-year variance that looks operational and is not.
  • Data that stops mid-year. A gap carried forward because nobody checked the total against the bills.

None of these are unusual, and none reflect badly on a building manager. Portfolio Manager is unforgiving software and the rules are specific. That is precisely why the regulation requires an independent check.

Who can verify

Verification must be performed by a certified professional, independent of the party that prepared the filing. In practice, buyers look for a Professional Engineer, a Certified Energy Manager, or equivalent recognised credential, with demonstrable Portfolio Manager competence.

EnerSolution holds these credentials in-house and operates as a Natural Resources Canada Registered Service Organization. We perform verification both for buildings we file for and for buildings filed by others.

Timing

Do not leave it to June

Verification requires the reporting year's data to be complete and the source records available. Starting in the weeks before the 1 July deadline leaves no room to resolve a discrepancy — and discrepancies are common. Begin in the first quarter.

Common questions

We are just under 100,000 sq ft. Are we affected?

Not for verification, though annual reporting still applies at 50,000 sq ft and over. Confirm your gross floor area against the measurement standard before concluding you are under the threshold — floor area is the single most commonly miscalculated figure in benchmarking.

Can the firm that files our report also verify it?

Verification is meant to be independent of the filing. Where we perform both, they are handled by different personnel with documented separation. Where a program or owner requires full independence, we will say so and perform only one of the two.

What happens if verification finds errors?

They are corrected and the filing is resubmitted. That is the purpose of the exercise. A correction found by your verifier is an administrative task; the same error found by a regulator, a lender or a purchaser during due diligence is a different conversation.

How long does verification take?

For a single building with complete records, typically two to three weeks. Portfolios and buildings with tenant-metered load take longer, mostly in assembling source data rather than in the review itself.

Related

Where to go next

Request a proposal

Tell us what is driving the decision

A compliance deadline, an incentive application, a financing requirement, or a capital plan. Tell us which, and we will tell you what you need and what it will cost — as a fixed fee, before any work starts.

If you do not need an audit, we will say so.