Tiered permit fees, and the re-roofing exception
Truro requires a Building Permit for structural changes and for most repairs or renovations to existing buildings. Solar is not named separately in that description, so the practical question for a homeowner is which category their install falls into, and that is a question for the town rather than for an installer. Renovation permit fees are tiered by size: $25 for work under 1,000 square feet, $50 up to 5,000 square feet, and $250 above that.
One exception is worth carrying into any conversation about roof work. Re-roofing on its own only needs a permit if the roof pitch changes. That is useful if you are considering replacing shingles before an array goes on, which is often the right sequence: a roof with only a few years left under a twenty-five year array is a false economy, and knowing that the re-roof itself may not trigger a permit removes one reason to put it off.
The published fee scale is the useful part here. It means a Truro homeowner can sanity-check a quote that includes permit costs against a number the town has published, rather than accepting whatever figure appears on the line. If the permit charge in a proposal is well above the tier your project sits in, ask what the difference covers.
Connecting under the Act rather than under a programme
Nova Scotia Power serves Truro, and residential solar up to 27 kW connects under the self-generation option established by the Bill 145 amendments to the Electricity Act in April 2022. The distinction between a statutory right and a utility programme is not academic. A programme can be closed to new applicants, capped, or repriced by the utility that runs it. A right in the Act has to be changed by the legislature.
The process is correspondingly light. There is no separate net metering application, no sign-up fee, and the bidirectional meter is installed at no cost. Nova Scotia Power's net metering programme for larger generation now carries a 27 kWac minimum, which sits above the residential ceiling, so a Truro house never falls under it and never needs to engage with it.
Rates are set through the Nova Scotia Energy Board, and the residential default is a flat Domestic Service Tariff with no mandatory time-of-use pricing. That means there is no peak period to avoid and no cheap window to shift consumption into. The design question is not when you use electricity but how much of it you use across a year.
1,095 kWh per kW, and the yearly total that caps it
Natural Resources Canada's photovoltaic dataset puts Truro at 1,095 kWh a year for each kW of installed capacity on an unshaded, well-oriented array. That converts a proposal into an annual expectation quickly: a 6 kW system models near 6,570 kWh a year, a 9 kW system near 9,855 kWh. Useful for comparing quotes, but not the constraint that should decide the size.
Surplus generation is purchased at a rate equivalent to the rate you pay, which is 19.128 cents per kWh on the residential tariff effective May 1, 2026. Exports are bought up to a maximum of your total usage per calendar year, and there is no compensation for anything generated above that annual figure. So the ceiling on a sensible Truro array is the yearly kWh total printed on your Nova Scotia Power bills, and a system modelled well past it is buying production with no buyer.
Credits are banked and settled each January 1, which is the right cycle for this climate: a high-output June carries forward into a low-output December rather than expiring at the end of the month. Expect a real roof to fall short of the flat benchmark, and expect specific reasons. Shade at midday costs more than shade early or late. An array split across two roof planes yields less over a year than one good plane. Snow sitting on a shallow pitch produces nothing until it clears. Ask for a model built on your address.
An even split between houses and low-rise apartments
Truro's roughly 6,350 dwellings split almost evenly between two very different situations for a would-be solar owner. About 41 per cent are single-detached houses, where the roof is yours and the only approvals in play are the town permit and, on a designated property, heritage review. About 42 per cent are low-rise apartment buildings under five storeys, where the roof belongs to a landlord or a condominium corporation and the first step is a written question to them rather than a quote.
Duplexes are about 11 per cent of dwellings, which is a meaningful slice of the town. A duplex often means a roof plane shared with the other half of the building, so the array layout, the wiring route and any future maintenance access can involve a second owner. Sort out where your roof ends before a design is drawn, because moving panels after the fact is the expensive way to establish a property line.
There are no high-rise buildings recorded in Truro's dwelling stock at all, so multi-unit solar here means low-rise roofs rather than towers. For a town of 12,954 people that shapes what is realistic: the addressable rooftops are houses and duplexes plus whatever low-rise building owners choose to do, and the last of those is a decision made by someone other than the resident.
Three conservation districts and a registry of properties
Nova Scotia has no US-style homeowners associations, so nothing private governs what goes on a Truro roof. What does exist is heritage regulation, and Truro has more of it than a town this size might suggest. The town maintains a Registry of Heritage Properties containing dozens of individually designated homes, and it has three Heritage Conservation Districts.
The rule for a designated property is specific and it is the one that changes a solar timeline: any exterior change needs written approval from the Heritage Committee before work starts, in addition to any required building permit. That is two approvals in sequence rather than one, and the heritage step comes first. A project scheduled as though the building permit were the only gate will run late.
Check your address against the registry and the district boundaries before an installer designs a layout. Panel placement, visibility from the street and mounting hardware are all things a heritage review can have views about, and it is far cheaper to design within those views than to redesign around them once they are expressed.
The rebate that closed, and what took its place
Efficiency Nova Scotia's SolarHomes rebate stopped taking new applications on April 17, 2025 and is now closed. This matters most when comparing quotes: if one proposal still shows a SolarHomes deduction and another does not, they are not comparable prices, and the one showing it is working from a programme that no longer accepts applicants.
What remains on the provincial record is not a rebate. PACE financing attaches the cost of an energy retrofit to the property tax bill rather than requiring cash upfront, and it is available in participating municipalities, so ask the town whether Truro participates rather than assuming from the province-wide listing. It changes when you pay, not what you pay.
The federal Clean Technology investment tax credit is worth naming only to set it aside: the Income Tax Act limits it to taxable Canadian corporations and certain trusts, so a homeowner cannot claim it. It is claimed against a qualifying investment by an eligible claimant, so put the question of whether it applies to a household purchase to an accountant before letting it into a payback figure. As for storage: because Nova Scotia buys your surplus at your own retail rate up to your annual consumption, a battery in Truro is worth pricing for backup during outages rather than for capturing a price difference that does not exist here.