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Best energy management system for stadiums

Published October 11, 20263 min read
Milvian AI teamFacilities and infrastructure intelligence
Condenser fans seen from above

The best stadium EMS prices every event and every dark day separately. It finds the load that stays on after the crowd leaves and keeps the event peak under the tariff threshold.

Why venue energy is hard to read

A stadium's bill mixes very different days. An event day stacks field lighting, video boards, kitchens, refrigeration and full HVAC into a few hours, then the building should fall back to a fraction of that. Monthly bills average the two, so nobody can say what a single event cost or how much load lingered afterward.

Peaks matter as much as totals. Event start can bring lighting, boards, kitchens and air handlers online within minutes, and many tariffs charge for the highest interval of the month. One badly sequenced ramp can set the demand charge for the whole billing period.

What the EMS must do

RequirementWhy it matters hereAsk the vendor
Tag consumption to events.Finance wants energy per event, and per attendee.Can you import our event calendar and report cost per event?
Measure the dark-day base load.Load left running after an event is the cheapest saving in a venue.Show the base load trend for a week with no events.
Watch demand in real time.The monthly peak is often set in the first hour of an event.Do you alert before a demand threshold is crossed?
Split partner loads.Concessionaires and suite operators should see and pay for their share.Can you bill or allocate by sub-meter?

Benchmarks and direction of travel

EIA's public assembly category averaged 81.1 thousand Btu per square foot in 2018, well above the 70.4 average for US commercial buildings, with space heating the largest end use. The DOE Smart Energy Analytics Campaign found median savings of 9 percent from fault detection and diagnostics across about 6,000 buildings, much of it from equipment running when it should not.

Venues near large cities face building performance standards. New York's Local Law 97 charges $268 per metric ton of CO2e over the limit, and the limits tighten in 2030.

How to evaluate it

  1. Map the big loadsLighting, boards, kitchens, refrigeration and air handlers, with who controls each.
  2. Sub-meter by feederFeeder meters on the main switchboard explain an event day faster than room sensors.
  3. Stagger one event startSequence the ramp and compare the peak with the last comparable event.
  4. Report per eventAgree the per-event cost method with finance before the season starts.

Where Aqueduct fits

aQ EnergySmart draws the electrical single line from the utility supply to each feeder, so an event-day peak can be traced to the board, kitchen or air handler that drove it. Its baseline uses past bills and degree days, and rate configuration turns the difference into money. Billing Management splits shared meters between the venue and its partners, and flags any partner whose use falls outside its usual range.

Sources

SourceLink
US EIA, CBECS 2018, Public assembly buildingseia.gov
US EIA, Commercial buildings in deptheia.gov
US DOE, Smart Energy Analytics Campaignenergy.gov
NYC Department of Buildings, LL97 presentationnyc.gov
NYC Department of Buildings, Local Law 97nyc.gov
Questions

Questions about this topic

A stadium BMS runs equipment; a stadium EMS measures what that equipment consumed, compares it with expected use and prices each event and dark day. Aqueduct covers both from one store: aQ EnergySmart reports cost per event, and Smart Controls changes schedules with owner approval. See BMS for stadiums.

Not at first. Meters on the main switchboard feeders explain most event-day load, and individual stands are metered later where a partner contract needs billing. Aqueduct maps each feeder on the electrical single line, so the largest partner loads are visible before any stand gets its own meter.

Yes. In aQ EnergySmart, on-site solar and backup generation appear as sources in the energy balance beside grid supply, so their share of an event is measured rather than assumed. Batteries and generation can then be scheduled against the event ramp to hold the peak down. See peak demand management.

Compare each event with the expected use for its weather and attendance, not with last season's bill. Aqueduct builds that expectation by regression on past bills and degree days, normalizes by visitors and prices the gap at the venue's tariff, giving finance a per-event figure tied to meter data.

See Aqueduct on your own facility.

Bring a site, a utility bill or a question. We will show you where the loss is.