Building performance monitoring in the US

LL97, BERDO and Washington’s Clean Buildings standard judge a building on what its meters say. Pulse BPM tracks the meters and the comfort behind them, home by home.

An illustration of a housing scheme from above
Alder Wharf, a demo scheme. Every home is read separately.

Building performance monitoring in the US means measuring energy, temperature, humidity and CO2 inside buildings, so owners can show performance rather than estimate it. Pulse supplies metered energy for building performance standards, and comfort and mold risk for property managers.

  • NYC Local Law 97: emissions limits from 2024, reports due each 1 May
  • Over the limit, a fine is charged for each metric ton of CO2e
  • Boston BERDO and Washington State Clean Buildings also rest on metered data
  • Phius and Passive House buildings can be checked against their models

A year of metered energy, on a demo scheme

Energy for 150 homes by use, with the high users listed first and a CSV export.

Demo scheme. The figures are illustrative, not a client result.

Energy and ESG

A year of metered energy for 150 homes, by use

Pulse Energy: a year of metered electricity for 150 homes, split into hot water, ventilation, lighting and other electricity
  1. Year325,563 kWh across the scheme in 12 months, split by use. Hot water was 31 % of it.
  2. CasesTwo homes had a High electricity case in the year. Both were found from the meters and closed.
  3. RecordEvery flag has a date and a reading behind it. What keeps coming back is listed first.
  4. PackThe register exports to CSV for the period an auditor asks for.

325,563 kWh metered in 12 months across the scheme, split by use

Demo scheme, Harbourpoint Housing. The figures are illustrative, not a client result.

Building performance standards run on metered energy

These laws cover large commercial and multifamily buildings. Limits and dates change, so we describe the shape and link to the rule.

New York City
Local Law 97 sets greenhouse gas emissions limits for covered buildings. Compliance began in 2024, limits tighten from 2030, reports are due each year on 1 May, and a fine is charged for each metric ton of CO2e over the limit.
Boston
BERDO sets emissions standards for large buildings, with compliance beginning in 2025 for buildings of 35,000 square feet or more, or 35 or more homes. An alternative compliance payment is charged per metric ton over the limit.
Washington State
The Clean Buildings Performance Standard applies in tiers by building size, largest first, with deadlines from 2026 to 2028.
Other cities
Other cities and states run programs of their own. Check the current rule for your property.

All of them need accurate metered energy, month by month, for every meter in the building. That is a sub-metering and verification job. Pulse does not file for you and no city has approved it. It supplies the measured figures, keeps the record behind them and shows where energy goes inside the building.

What Pulse gives US owners

  • Metered energy

    Electricity from clamps and meters by building, home and month, with other fuels joining as meters connect. The monthly figures behind an annual LL97 or BERDO filing, with the readings behind each.

  • Mold, heat and cold

    Homes with the conditions mold needs, ranked and dated. A building can meet its emissions number by being cold, so energy sits beside temperature, with lines at 25 °C (77 °F) and 18 °C (64 °F) per room.

  • Passive House verification

    Measured temperature, humidity, CO2 and energy per home, set against the model, with a handover report for your design team and certifier.

Who is behind Pulse

Mosart has worked on building performance since 1993 and has been the Passivhaus designer or certifier on around 10,000 homes and 7,500 student bed spaces. We are an RIAI registered practice with seven Passivhaus certifiers accredited by the Passive House Institute. The people who set up Pulse are the people who certify the buildings it watches.

About Mosart

The House at Cornell Tech on Roosevelt Island, New York, a 26 story Passive House tower
The House at Cornell Tech, Roosevelt Island, New York. At completion in 2017, the tallest Passive House building in the world; Mosart’s founders were among the certifying team.

Questions US owners ask

Does Pulse file my Local Law 97 report?
No. The filing is yours or your consultant’s, due each year on 1 May. Pulse supplies the metered energy by month and by meter, so the figures going into the filing are measured and traceable. Mosart’s engineers can help check them.
Which US building performance standards does this support?
Pulse is built to track metered energy for laws such as NYC Local Law 97, Boston BERDO, the Washington State Clean Buildings standard and similar programs. Each has its own covered buildings, deadlines and method, so check the current rule for your property.
Can it verify a Phius or Passive House building?
It can show whether a certified building does what its model predicted: temperature, humidity, CO2 and energy per home, against published thresholds. We have found no Phius or PHI requirement for in-use monitoring, so this is evidence you choose to hold.
Does it measure mold risk in multifamily buildings?
Pulse flags the conditions mold needs: relative humidity over 70 % with air under 18 °C (about 64 °F), or a surface within 3 K (about 5 °F) of the dew point, for 48 hours. Thresholds are published with their source.
Does it work in Fahrenheit and with US units?
Pulse stores readings in metric. Display in degrees Fahrenheit and kBtu is part of the US release we are building, and the data export can be converted today.

Get a quote

Tell us the city, the building size and the program you report under. We will say what can be measured and how the sensors would be installed.

Or call +353 404 25777. Ask for the Pulse team.