Solar on a north-facing roof ☀
Title: Solar Sid’s North-Facing Myth-Buster: Don't Count the North Roof Out! 🏠☀
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Listen up, sunshine seekers! Solar Sid here.
I hear it all the time: “Sid, I live in Ireland, my roof faces North, so solar is a waste of time, right?”
Wrong! 🛑
If you’ve been told a North-facing roof is a “no-go,” you might be missing out on some serious energy gains. While a south-facing roof is the “gold standard” for peak midday power, a North-facing roof can still be a reliable workhorse for your home.
Why North-facing isn't a "dead end" in Ireland:
Diffuse Light is Our Friend: Here in Ireland, we see plenty of clouds. Solar panels don't just work when the sun is at its peak; they harvest diffuse light — the soft light that's everywhere on a typical Irish day. North-facing roofs are actually quite good at soaking up this ambient light.
The Comparison: So, how do they stack up? If you take a standard South-facing array as your 100% benchmark:
- East/West arrays typically net you about 80%–85% of that total annual generation.
- A North-facing array will generally sit in the 60%–70% range.
Yes, it's lower, but it is absolutely not zero! It's still a significant amount of “free” electricity that you aren't buying from the grid.
Solar Sid’s "Pro" Tips for the North Side:
Keep it Clean: Since you’re working with less direct light, keep them free of moss and grime so they can catch every last bit of that Irish daylight!
Optimisers are Key: On non-ideal aspects, power optimisers can help ensure every panel is pulling its weight, even when the light is low.
Think Like a Dubliner: If you wait for a perfectly sunny, cloudless day in Ireland to run your appliances, you’ll be waiting until the next century! A North-facing array just keeps humming along regardless of the mood the weather gods are in.
The Bottom Line:
A “perfect” roof is great, but a “working” roof is even better. Don't let the Irish weather or the compass dictate your savings — sometimes the “worst” roof is the one that surprises you the most!
Solar Sid’s Final Thought: Look, a North-facing roof might not be the Ferrari of solar setups, but it’s a solid, reliable tractor. It might not win the race at high noon, but it’ll get the job done while your neighbours are still waiting for their “perfect” roof to pay itself off!
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