What a Courtenay roof produces in a year
The modelled yield for Courtenay is about 1,021 kWh annually per kW of installed capacity, measured on a well oriented array with unobstructed sky. In practical terms that is roughly 5,100 kWh from a 5 kW system, 6,100 kWh from 6 kW and 8,200 kWh from 8 kW. Those are the numbers to sanity check a quote against: if an installer's projection sits far above them for a comparable system, ask what assumptions produced the difference.
The year behind that average is anything but flat. Output is concentrated in the long, bright months and drops steeply under winter cloud, and because of the export rules described below that seasonal swing now has financial consequences it did not have before. Your own consumption has a shape too, and the two shapes rarely line up. Comparing them month by month, using a year of your own bills, tells you far more about whether a system is well sized than any annual total does.
After the local climate, the roof decides the result. A south facing plane collects the most over a year, east and west planes give up some of that total in exchange for a longer daily production window, and a north facing plane is generally not worth the mounting hardware. Usable area is smaller than roof area once vents, stacks and edge clearances are subtracted, and any shading needs to be surveyed on site, since a single shaded module can pull down a whole string unless the design uses microinverters or optimisers to isolate it.
Summer no longer pays for winter
Courtenay homes connect to BC Hydro, which closed Rate Schedule 1289, its net metering rate, to new customers on 1 July 2026. New systems connect under Rate Schedule 2289, the self generation rate instead. The most useful way to understand what changed is to look at the period over which the account settles.
The old rate effectively settled over a year. Kilowatt hours you did not use were banked as kilowatt hours and stayed there, so an array could run a large surplus through the bright months and spend it back through the dark ones at retail value. That is what made oversizing rational: winter was paid for by summer. Rate Schedule 2289 settles every billing period. Generation is still netted against consumption inside that period, but whatever surplus is left when the period closes is converted to money at a fixed 10 cents per kWh and credited against energy charges, for systems up to 100 kW. Nothing travels forward as energy, so the summer no longer subsidises the winter.
On a coast with a pronounced seasonal swing, that is the difference between two quite different design briefs. Under banking, the sensible target was your annual consumption. Under settlement each period, the target is the consumption you can actually cover as it happens, because a kilowatt hour used in the house avoids the residential energy rate while an exported one returns 10 cents, and 10 cents is the smaller number. Shifting flexible load into daylight, running a dishwasher or a hot water tank on a midday timer, or charging an EV in the afternoon rather than overnight, is worth more under this rate than it was under the old one.
Nothing else about your service changes. The panels still supply the house before anything is exported, the connection still runs through an application to BC Hydro and a bidirectional meter, and your rate stays the standard tiered residential one, because BC Hydro's time of day pricing is opt in rather than automatic. Homeowners who already hold net metering are not moved on the change date: they stay on Rate Schedule 1289 until ten years have passed from their own service start date.
Courtenay wants an engineer's seal before it issues the permit
Courtenay requires a building permit for photovoltaic or solar hot water panel installations, and the city states the reason: the load the panels add to the roof has to be evaluated by a registered structural engineer. That single requirement changes the shape of a project here. In a municipality where a solar permit is essentially a form and a fee, the installer handles it in the background. In Courtenay an engineer is a named participant with deliverables, and the permit cannot be completed without their work.
The application itself asks for architectural details, a roof plan, and structural and anchoring drawings, together with a report sealed by the engineer confirming that the existing structure can support the panels. Three things follow from that list. Get clear early on whether your installer's price includes the engineering or shows it as a separate line, because the difference between two quotes is sometimes just where that cost sits. Expect the anchoring detail to be specified rather than left to the crew, which is a good thing on a roof that has to stay watertight for decades. And accept that the structure is genuinely being assessed: if the engineer concludes the existing framing cannot carry the array as designed, that is a finding you want at the drawing stage, not after a deposit.
The electrical side is not Courtenay's to issue. A separate electrical permit is required from Technical Safety BC, so a completed project involves two permits from two different bodies, alongside the interconnection application to BC Hydro. Ask your installer to lay the three tracks out with dates before work starts, and confirm who is responsible for filing each one. Most delays in a project like this come from one track waiting on another rather than from any single approval taking a long time.
Half houses, and a lot of shared roof planes
Just over half of Courtenay's 12,990 dwellings, 50.1%, are single detached houses, which is the uncomplicated case: your roof, your electrical service, your decision. High rise apartments are effectively absent from the city at 0.3% of the stock, so the tall building scenario that dominates solar conversations in denser cities barely exists here.
The distinctive number is semi detached homes at 14.7%, an unusually large share and well above most other cities in this comparison. A semi detached home usually shares one continuous roof structure with the home next door, and that raises questions a detached house never faces. Establish how the property is held, since a strata titled arrangement will normally treat the roof as common property and require an alteration approval before work begins. Even where the decision is yours alone, the array sits on a structure your neighbour lives under, so mounting penetrations, flashing details and what happens at the next reroof are worth settling in advance.
Low rise apartments make up 20.7% of the stock, and there the roof is common property without ambiguity. An array on that kind of building is a strata project: approved by the owners under the alteration rules, funded from the reserve or a levy, and sized against the building's own common consumption rather than any one unit's. It is a longer process than a house install, and it usually starts with an assessment of the building's electricity use rather than a panel layout.
Rebates, financing, and another rule about who does the work
The BC Hydro solar and battery rebate offers up to $5,000 for residential solar, calculated at $1,000 per kW of installed generator capacity and limited to 50% of the total installed cost. Battery storage installed alongside earns $500 per kWh up to $1,500, subject to a 5 kWh minimum and the same cost ceiling, rising to as much as $5,000 where the battery is enrolled in Peak Saver. Check both the per kW figure and the cost cap against your own quote, because on a competitively priced installation the cap is often the number that decides what you actually receive.
The rebate adds a second constraint on who touches your project. Since 1 June 2026 the work must be performed by a member of the Home Performance Contractor Network, so a Courtenay homeowner is effectively filtering installers twice: once for a firm that can produce sealed engineering drawings the city will accept, and once for network membership. Ask about both while you are still collecting quotes. Taking the rebate also places you on the Self Generation Service rate, which is where a new Courtenay connection starts regardless, so that condition only carries a real cost for someone already holding the older net metering rate.
Financing is thinner than it was. The Canada Greener Homes Loan, interest free up to $40,000, stopped accepting new applications on 2 October 2025, and only previously approved loans are still being funded. The Canada Greener Homes Affordability Program took its place, working through provincial partners to deliver no cost retrofits to low and median income households, with solar federally eligible but each province setting its own technology list. Canada has no federal investment tax credit for residential solar, so any quote built around one is using American numbers. British Columbia has at times exempted qualifying solar equipment from provincial sales tax, and because that treatment moves with provincial budgets, confirm where it stands for your equipment when you buy.