Net metering in Alberta and Ontario compared
Alberta and Ontario both let a home solar owner offset purchased electricity with exported solar power, but they get there through different frameworks, so credit values, banking periods and agreement types are not interchangeable. Rules in both provinces have been revised more than once, and the utility and regulator decide the current terms.
What does net metering mean in each province?
In general terms, net metering is bill credit bookkeeping. The meter records what the house draws from the grid and what the solar system sends back, and exports earn a credit that reduces later charges. The aim is that a customer pays for the net amount of electricity rather than the gross.
Ontario uses the phrase most directly, with a regulated net metering program run by the local distribution utility, with credits counted in kWh and subject to the current rules. Alberta handles the same idea through its micro-generation rules, which is why a contractor's use of the words "net metering" in Alberta can hide differences. Our Alberta net metering guide and the micro-generation regulation guide give the Alberta side in more detail.
How do credit values and billing differ?
The key question is what an exported kilowatt-hour is worth. Electricity bills have several parts: the energy itself, delivery and distribution, and other riders and fees. A credit that covers only the energy part is worth less than one that offsets the whole retail rate, and where a province sits on that spectrum has changed over time.
Here is a simple illustration with made-up numbers. Suppose a house exports 2,000 kWh in summer and the credit is worth a certain amount per kWh. If the credit is worth only the energy charge, the same export produces a smaller offset than under a framework that credits closer to the full retail rate. The panels and weather are the same, and the payback differs. Ask the installer which credit assumption the quote uses, then compare it with what the utility says in writing.
What happens to unused credits?
Summer production runs ahead of demand and winter runs behind, so banked credits are meant to cover part of the darker months. The rules decide how long credits last and what happens at the end of that period. In Ontario, credits have typically been carried forward for a set period, commonly described as up to a year, with a rule for what happens to anything left. In Alberta, how credits carry and expire is set by the micro-generation framework and the retailer or wire owner.
These details drive the economics more than the headline name does, so read the interconnection agreement before signing a solar contract. For a sense of how the seasonal gap shapes system size, see how to read a solar production estimate.
Is net metering the only option in Ontario?
No. Ontario also has connection arrangements that do not use credits at all. One is load displacement, where the system only offsets what the building uses at the moment and is set up to avoid exporting. It can suit properties with steady daytime demand, and it may be the only route in some utility areas or for some project sizes. A metering agreement and a connection agreement are different documents, and which one applies depends on the utility, so the installer should state it in the proposal.
Alberta also treats larger or commercial systems differently from small residential ones. A business owner should look at Alberta small business solar incentives as well as the household rules.
How do you check the current terms?
Three sources hold the answer. The provincial energy ministry describes the policy framework, the provincial utility regulator publishes the rules distribution companies must follow, and your own utility or retailer shows how credits appear on a bill. Government of Canada energy-efficiency pages give a national overview but not the local billing details.
A battery changes the arithmetic, because energy kept for the evening does not need a credit. Whether the extra equipment pays depends on how credits are valued where you live; the solar battery guide works through that question, and the payback period guide shows how to test a quote under more than one assumption.
Quick answers
Is net metering the same in Alberta and Ontario?
No. Both credit exported solar power, but they use different regulatory frameworks, credit valuations and banking rules. Confirm the current terms with the utility and the provincial regulator.
Which province gives better credits for solar exports?
It depends on the current rules and on how a credit is valued against the bill, so no general answer holds. Compare written terms from your own utility rather than relying on old articles.
What is load displacement in Ontario?
It is a connection arrangement where solar output offsets the building's own use as it happens, with little or no export. It does not rely on bill credits, so it is a different metering agreement from net metering.
Where do I check the current net metering rules?
Start with the provincial energy ministry, then the utility regulator, then your own utility or retailer. The installer should also state in the proposal which arrangement the savings estimate assumes.