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Solar panels in Langley, BC

Roofs in Langley get about 1,171 hours of usable sunlight a year — less than 99% of the cities we've measured. Here's what that means in cost, savings and payback, using real rooftop data rather than a national average.

1,171Sun hours / yr
28Panels typical
CA$31,920Cost after credit
23.6 yrPayback
Be careful in Langley. At a 23.6-year payback, solar here is a long-horizon decision, mostly because electricity is relatively cheap (12.4¢/kWh). It can still make sense if rates rise or you have local incentives — but check the numbers hard before signing.

Check your specific roof in Langley → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.

What a typical Langley solar system costs

A 28-panel system (11.2 kW) is about right for an average Langley home using 10,800 kWh a year. It would produce roughly 11,148 kWh annually and offset 100% of that usage.

Estimated economics by system size in Langley, at 12.4¢/kWh
SystemSizekWh/yr Net costSaves/yrPayback
8 panels3.2 kW 3,185CA$9,120 CA$395 23.1 yrs
12 panels4.8 kW 4,778CA$13,680 CA$592 23.1 yrs
16 panels6.4 kW 6,370CA$18,240 CA$790 23.1 yrs
20 panels8 kW 7,963CA$22,800 CA$987 23.1 yrs
26 panels10.4 kW 10,352CA$29,640 CA$1,284 23.1 yrs

Notice that payback barely improves as systems get bigger, and eventually gets worse. That's because you can only save money on electricity you were going to buy anyway. Once a system covers your usage, extra panels mostly generate exports at a much lower rate.

Why Langley gets 1,171 sun hours

That figure comes from Google's analysis of real rooftops across Langley — it already accounts for shading from trees, chimneys and neighbouring buildings, which is why it's lower than the raw "hours of daylight" figures you'll see elsewhere. An unusually open, unshaded roof in Langley reaches about 1,280 hours, roughly 9% better than typical.

The numbers behind this page

Typical usable sunlight1,171 hrs/yr
Unshaded roof1,280 hrs/yr
Electricity rate (British Columbia avg)12.4¢/kWh
Installed cost assumed$2.85/W
Panel size assumed400 W
Typical household usage10,800 kWh/yr
Power used as generated34%
Paid for exported powerfull retail (net metering)
Rooftops sampled here14
Google imagery from2014

Nearby cities

Solar panels in SurreyBritish ColumbiaSolar panels in CoquitlamBritish ColumbiaSolar panels in BurnabyBritish ColumbiaSolar panels in DeltaBritish ColumbiaSolar panels in BellinghamWashingtonSolar panels in RichmondBritish Columbia

See all of British Columbia → statewide sunlight, rates, incentives and every city we've measured.

Langley solar questions

How many solar panels do I need in Langley?

About 28 panels for an average home. Langley roofs get 1,171 usable sun hours a year, so each 400W panel produces roughly 398 kWh annually.

Is solar worth it in Langley?

At 12.4¢/kWh and 1,171 sun hours, a typical system pays for itself in about 23.6 years and returns roughly CA$1,830 over 25 years. That is slower than the national average, so compare quotes carefully.

How much do solar panels cost in Langley?

A 11.2 kW system costs about CA$31,920 before incentives . Prices vary by installer, roof complexity and equipment.

Worth reading before you buy

What your utility pays for exportsChanges payback more than any equipment choice 12 questions to ask before signingIdentical systems vary 30–40% in price How long do panels last?Guide How long until it pays for itself?Guide

Estimates only, generated 2026-08-22 from Google Solar API rooftop samples and average British Columbia electricity rates. Not a quote and not financial advice. Your roof, usage, utility plan and local incentives will change these numbers — get real quotes before buying.