We make room for your EV chargers.

See how

Measured on the service you already have, before anyone quotes an upgrade.

Who did we work with
Kajima CorporationNanyang Technological UniversityTata Consultancy ServicesRadissonPeople's Association
How we answer →
How we answer →
How we answer →
How we answer →

How It Works

  1. 01Determination

    Your utility's 12-month record shows how much of your service is in use.

    1. Connect the utility account12 months of demand, every 15 minutes.
    2. Or upload the billsAny bill that shows kW.
    3. Photograph the panel scheduleEvery circuit, typed into a record.
    4. Your Capacity ReportWhat the service carries, and how much room is left.

    See a sample Capacity Report →Order a Report →

    MY STUDYStep 1 of 3Connect your utility accountService addressAccount numberShare 12 months of interval data with WattifConnect12 months received0 readings, every 15 minutesPeak 336 A
    Determination, sheet 1 of 24. Read this page first

    The service supports the addition.

    Proposed new load
    +96.0 kVA
    Existing demand, measured
    289.4 kVA
    Existing load, local code method
    361.8 kVA
    Headroom after addition
    207.3 kVA
    Verdict: supports the additionMethod: existing load from measured demand
    Engineer-reviewed, not signed. Sep 2, 2026
    Marina Logistics, Panel A additionWattif / WTF-2417 / SHT E-000
  2. 02Investigation

    Meters on your circuits show which loads set your peak.

    1. Map the loadsEvery circuit to its load, and every load to its zone and process: food preparation, refrigeration.
    2. Find the busiest momentOne 15-minute interval sets the peak.
    3. See what was runningEvery load's share of that moment.
    4. Protect what must runLife safety, and anything you name.
    5. Find what can changeLoad at the wrong hour, or working harder than it needs to.
    30 daysLOADS, BY ZONE AND PROCESSService, 400 APanel AC1Walk-in coolerRefrigeration...C2Walk-in freezerRefrigeration...C4Kitchen hoodFood preparation...C5Water heaterFood preparation...C7Rooftop unit 1Sales floor, cooling...C8Rooftop unit 2Back of house, cooling...C9Sales floor lightsSales floor, lighting...C11Parking lightsCar park, lighting...
  3. 03Intervention

    We identify which loads can change, and how many amps each change frees.

    Three rooftop units that start together
    412 Aat the peak
     
    400 A SERVICEBefore00:0006:0012:0018:0024:00
  4. 04Control Logic

    We design control logic for your site that respects every constraint and never puts your operation at risk.

    1. We map your peak dayWe show when your site uses the most power, and what happens when the new equipment is added.
    2. You choose what can pauseYou tell us which equipment can pause and for how long. Cold rooms and safety systems are never touched.
    3. We write a rule for each piece of equipmentFor example: when the site gets close to its limit, pause rooftop unit 2 for up to 15 minutes. You approve every rule.
    4. If anything goes wrong, it stopsIf readings stop or something looks wrong, your equipment goes back to running normally.
    EXITNoonYour limitNew equipment
  5. 05Managed Capacity

    We keep your peak under the limit.

    1. We watch the peak as it buildsEvery 15 minutes, against your limit.
    2. Your rules act before the limitOne load eases off for a few minutes, then comes back.
    3. What you need is never touchedProtected loads are never on the list.
    4. Held, month after monthEach month's peak, measured on your panel.

    See how it runs on one panel →

    YOUR LIMITWITHOUT THE RULESRooftop unitsWater heaterLightingeasing offPROTECTEDEXITLife safetyRefrigeration

Find out before you spend. A measurement costs a fraction of the upgrade it settles.

Get a Free Capacity Check
Load Studies for Commercial Facilities | Wattif