A 5 MW province-wide cap, and what it means for your timing
Net metering in Newfoundland and Labrador operates under a province-wide limit of 5 MW of total customer-owned generation, with any individual system capped at 100 kW. The individual cap is irrelevant to a house, since a residential array is a small fraction of it. The province-wide one is not irrelevant at all, because it is shared, finite, and filled on a first-come basis by every customer who enrols ahead of you.
That makes timing a real variable rather than a preference. A programme with a hard ceiling can close to new entrants, and the moment it does, the economics of a rooftop array change completely: without net metering, exported electricity stops being worth retail credit. Before you commit money, ask Newfoundland Power directly how much room remains under the cap and whether your application would be accepted today.
It also means you should not treat an installer's timeline as the binding one. The sequence that protects you is to confirm programme availability first, then design, then order. A deposit paid against a system that cannot enrol is a deposit at risk, so ask for the payment schedule to be tied to the net metering approval rather than to an installation date.
Applying to Newfoundland Power
Newfoundland Power is both the electricity provider and the net metering administrator here, so there is only one organisation to deal with on the utility side. Applications go directly to them at netmetering@newfoundlandpower.com, and the programme is open to new applicants with no application fee. That is a low barrier to asking, which is a good reason to ask before you have spent anything.
Put the questions in writing so you have the answers in writing. Worth asking: how much capacity remains under the provincial cap, what the current processing time is, what documentation the application requires, and what happens to exported electricity if the cap is reached after you are enrolled. The last one is the question most homeowners do not think to ask.
Agree with your installer who sends that email and who follows it up. On a project whose main external risk is a shared provincial cap, the identity of the person watching the application is not a detail.
Heritage approval, and why it comes before design
St. John's has designated heritage buildings going back to 1977 and maintains four Heritage Areas, each with its own design standards. If your building is designated, or your property sits inside one of those areas, you must obtain heritage approval from the city before any exterior alteration. A roof-mounted solar installation is an exterior alteration, so this is not a rule that might apply to your project; where it applies, it applies.
Heritage review is about how a change reads from outside, which means it can determine which roof plane is acceptable. That is not an aesthetic footnote: roof plane determines orientation, orientation determines production, and production determines whether the project is worth doing. A review discovered after the design is fixed does not just add weeks, it can force a layout with materially less output.
So the order of operations matters more here than in most cities. Find out first whether your address is designated or inside a Heritage Area, and if it is, ask what the applicable design standards say about rooftop equipment and how visibility from the street is assessed. Then ask your installer for a production estimate on each roof plane that could realistically be approved, and choose between real options rather than discovering the constraint late.
If your property is neither designated nor in a Heritage Area, this whole section is a non-issue and your project is an ordinary one. Confirming which case you are in costs one call.
Grants and financing
The federal picture has narrowed and it is worth being precise about what is gone. The Canada Greener Homes Loan, interest-free up to 40,000 $, stopped accepting new applications on October 2, 2025. Its funding is committed and only previously approved loans are still being paid out, so it is not something to build a plan around.
The Canada Greener Homes Affordability Program replaced it in September 2025 and delivers no-cost retrofits through participating provinces, which do not currently include Newfoundland and Labrador, for low- to median-income households. Solar PV is eligible federally, but each province sets its own technology list, so what matters is what Newfoundland and Labrador has actually included rather than what the federal programme permits. Check that before counting on it.
Canada has no federal investment tax credit for residential solar, so there is no equivalent of the American credit to factor in. For most St. John's households the arithmetic therefore rests on the value of net-metered generation over time and on ordinary financing, which is another reason the provincial cap question above deserves an answer before a contract is signed.