A Class A customer’s entire annual Global Adjustment charge is set by their demand in five hours of the year. Every other calculator averages that away. Ours computes your array’s real output in each of those five hours, from the sun’s actual position — live, in front of the plant manager.
A homeowner wants a payback year. A CFO wants an internal rate of return against their hurdle rate, and they will test your assumptions. Show them a scaled-up residential calculator — blended rate, flat escalation, one big savings number — and the meeting is over before the roof survey. Ontario makes it worse: distribution charges range from $2.99 to $22.52 per kW depending on the utility, Toronto Hydro bills kVA while everyone else bills kW, and Global Adjustment went negative for three months running last winter.
A blended cents-per-kilowatt-hour rate. Twenty-five years of grid spending stacked against a one-time purchase. Global Adjustment as a fixed number. The tax credit shown gross, with no mention of the recapture that lands the following year. The CFO finds one hole and stops believing the rest.
Their utility, their rate class, their billing determinant. The bill reconciled against a real invoice before anything else runs. The five peak hours computed individually. NPV, IRR and levelised cost against their own hurdle rate. Every assumption on screen with a source and a date — including the ones we could not verify.
Ten tabs, one engine. In person, on Zoom, or shared to a screen in a boardroom.
The published IESO peak hours, with your array’s output computed for each one from the sun’s real position that day. Shows the peak demand factor cut, the fourteen-month lag, and the net-exporter trap that can disqualify a site from Class A entirely.
Toronto Hydro, Alectra by rate zone, Hydro One urban and rural, London Hydro — from the OEB rate orders, with effective dates. kVA versus kW handled properly, with a power-factor input. Or read it straight off the customer’s bill.
The two are legally incompatible in Ontario, and the choice reshapes the whole model. Both branches priced side by side, including the grind that makes $770 per kW worth about half its face value once it reduces the tax base.
Clean Technology ITC at 20% or 30% depending on labour compliance, Class 43.1 immediate expensing, the ITC grind that lands the following year, and the recapture that comes with it. Municipalities and non-profits are flagged as ineligible before you build the pitch on it.
A compass showing where the sun actually sat during each of the five peak hours — west of south, visibly. Rotate the array and watch annual output fall while peak-hour value rises. The money answer is usually neither extreme, and the tool finds it.
Every figure carries a source and a confidence rating, printed with the proposal. The ones that could not be verified against a primary source say so. Handing a CFO the assumptions unprompted is what gets you through diligence.
Each one is modelled explicitly, because each one has ended a commercial deal.
Actual IESO settlements. It was negative for three consecutive months. A hardcoded assumption is wrong most of the year, so the tool shows the real history and lets you pick a scenario.
The Ontario Electricity Rebate cuts off at 50 kW demand or 250,000 kWh a year. Applying it to a plant overstates their current bill by nearly a quarter. It defaults to off.
Net-metering credits offset consumption charges only — not delivery, not transmission, not the service charge — and are never paid out in cash. Oversizing destroys value, and the tool says so.
Assuming solar zeroes the peak-hour load roughly doubles the claimed Class A saving. The honest version is a better argument — it points straight at west tilt and storage.
Two to eighteen percent of annual output depending on tilt and region. The engineer in the room knows. Modelled by tilt and by region, and stated on the proposal.
For a flat-load site with little ability to shave peaks, Class A can cost more than Class B. Both are modelled so the crossover is visible rather than assumed.
Global Adjustment, the five hours that set a Class A bill, and the tax stack — in three minutes.
Three minutes · what the calculator does and why Ontario commercial needs its own tool
Thirteen minutes, hands-free. It types a real Mississauga address, picks the local tariff on its own, models the five peak hours, runs the incentive fork and the tax stack, and prints the proposal. Nothing is sped up and nothing is edited out.
13:40 · every tab, at reading pace · no audio required
Bring one real commercial hydro bill. We will build the model on your prospect’s actual utility and rate class while you watch, and you will see exactly what your rep would put in front of them.
Ready to see it with your brand? Request your personalized demo →
Can opt in to Class A from 500 kW — the only sector besides greenhouses that can. Daytime load, big roofs, and the strongest peak-shaving case in the province.
Also eligible for Class A opt-in from 500 kW, and one of the few commercial categories that can still claim the Ontario Electricity Rebate by self-declaration.
Enormous roofs, moderate load. East-west layouts usually win here — more capacity per square foot, and the tool proves it rather than asserting it.
High, steady load through the summer afternoon — exactly when the provincial peaks land. Among the best Class A candidates in Ontario.
Rooftop units eat usable roof area and the load is smaller, so these usually land in Class B. The tool sizes to on-site consumption and says plainly when the case is thin.
No Clean Technology ITC — the tool zeroes the tax column and tells you before you build the pitch on it. Third-party ownership routes the benefit to an owner who can use it.
One extra commercial close pays for several years.
Your CRM + your branded commercial closing platform · Unlimited reps
Your reps also get The Ontario Commercial Playbook — seven modules, thirty-eight minutes, on how commercial electricity is actually billed in this province. Global Adjustment, the five hours that set a Class A bill, the incentive fork, the tax stack, permitting, and the twelve claims that will get a rep caught out.
Module one is below, in full. No form, no email.
Module 1 of 7 · 4:02 · Why commercial is a different business
A competitor can copy a calculator. Teaching your sales team why five hours of the year set their prospect’s largest charge is harder to copy — and it is the difference between a rep who quotes and a rep who closes.
See it with your brand, your utility, your prospect’s bill. Working preview within 48 hours.
No commitment. We’ll reach out within 24 hours.
Prefer to talk? Call 613-796-8852