The 10,000 $ threshold, and where roofing sits relative to it
CBRM's rule is a value test rather than a work-type test: a building permit is required for any structural or non-structural work valued over 10,000 $, and work under that figure, including roofing, does not need one. That is refreshingly checkable. A typical rooftop solar installation costs well over 10,000 $, so the sensible working assumption is that your project needs a permit.
The roofing carve-out is worth noticing because it affects sequencing. If your roof covering is near the end of its life, replacing it before the panels go on is the right order anyway, since panels outlast most coverings and removing and reinstalling an array later is expensive. In CBRM a re-roof under 10,000 $ does not itself need a permit, so doing the work in the right order can mean one permit rather than two pieces of process.
CBRM advises allowing 2 to 3 weeks for permit processing before planning to start construction. That is a usable planning figure rather than a binding commitment, so treat it as the earliest reasonable date rather than a guaranteed one, and ask what the current queue actually looks like when you apply.
Nova Scotia Power's Self-Generating Option, and the January 1 clear-out
Nova Scotia Power serves Glace Bay, as it does everywhere in the province without its own municipal utility. New solar customers use the Self-Generating Option for systems up to 27 kW. There is no sign-up fee, and plans are reviewed by Nova Scotia Power's Inspection Services team rather than going through a lengthy application process. Compared with provinces where a distributor evaluates circuit capacity before granting conditional acceptance, that is a light-touch process.
Surplus generation banks as a bill credit, and the timing of the settlement is what should drive your system size: credits are settled every January 1. That is the least favourable date on the calendar for a solar household, because it lands at the end of the darkest quarter, after months of drawing down whatever the summer built up.
So a summer surplus has roughly half a year to be consumed before the reset, which is usually enough if the system is matched to the household. A system built well past your annual consumption will accumulate credit that the January settlement removes. Size to twelve months of your own kilowatt hour totals rather than to available roof area, and remember the 27 kW ceiling is far above what a house needs.
Getting the roof right before either process starts
Orientation is the first thing that decides output. An unshaded slope facing generally south produces the most, east and west slopes produce usefully but give up output, and a north slope rarely repays the hardware. No equipment choice compensates for a poor plane, so this is the decision that matters most in the design.
Shading costs more than most people expect, because it removes production in the middle of the day when the array would otherwise be strongest. Ask for an assessment across the whole year rather than the hour of the site visit, since a bare tree in April is a full canopy by July.
Then check the covering age. This is where the CBRM threshold becomes practical advice rather than trivia: a covering within a few years of replacement should be replaced first, and under the 10,000 $ rule that roofing work does not itself need a permit. Doing it in that order costs one process and one set of scaffolding rather than two.
What funding remains
Efficiency Nova Scotia's SolarHomes rebate stopped taking new applications on April 17, 2025 and is closed. That matters when you read anything written before that date. A quote, an article or a payback calculation prepared while SolarHomes was open will be wrong by the entire value of the rebate, and this is currently the most likely source of an inflated expectation anywhere in Nova Scotia.
Federally, the Canada Greener Homes Loan, interest-free up to 40,000 $, stopped accepting new applications on October 2, 2025, and only previously approved loans are still being funded. The Canada Greener Homes Affordability Program replaced it in September 2025, delivering no-cost retrofits through provincial partners for low- to median-income households, with solar PV federally eligible but each province setting its own technology list. Check what Nova Scotia has actually included.
Canada has no federal investment tax credit for residential solar. So the honest Glace Bay arithmetic is the value of self-generated and banked electricity over time, against a system cost with no rebate attached and a permit whose trigger you can check against a single number. Ask any installer quoting you to show the calculation without SolarHomes in it.