10 Myths About Solar Power in Ireland

As solar panels become more popular across Ireland, so too do the myths surrounding them. At WattCharger, we speak with homeowners every day who are curious about going solar, but also unsure because of things they've heard. So let’s clear the air. Here are 10 common myths about solar power in Ireland and the facts that debunk them.

1. Myth: Ireland Doesn’t Get Enough Sun for Solar Panels

Truth: While Ireland isn’t known for its sunshine, solar panels work efficiently in cloudy and mild conditions. Solar PV systems generate electricity from daylight, not just direct sun. Long daylight hours in spring and summer are ideal for solar generation, and a well-sized system can produce meaningful energy year-round, even in winter.

2. Myth: Solar Panels Don’t Work in Winter

Truth: While output is lower in winter months due to shorter days and lower sun angles, solar panels still generate electricity. In fact, cold temperatures can actually improve panel efficiency. You may not power your home entirely in December, but you’ll still reduce grid reliance—and your bills.

3. Myth: Solar Is Too Expensive for Most Homes

Truth: With SEAI grants available (up to €1,800 as of 2025), plus VAT reductions, the cost of solar panel installation in Ireland has never been more accessible. For many homes, payback is possible in 6–10 years, with decades of free energy afterwards.

4. Myth: Solar Panels Require Constant Maintenance

Truth: Solar PV systems are low maintenance. Panels have no moving parts and are built to withstand Irish weather. An occasional check-up and a clean every year or two is usually enough. Most systems include remote monitoring, alerting you to any issues.

5. Myth: You Need Planning Permission for Solar Panels

Truth: In most cases, no planning permission is required. Recent regulations have relaxed the rules for residential solar PV systems. As long as you stay within the size limits and don't interfere with neighbouring properties, you're good to go. Flat roof or unusual installations may need assessment.

6. Myth: Solar Panels Will Damage Your Roof

Truth: Properly installed panels protect your roof by shielding it from weather. Installers like WattCharger assess roof strength and condition before fitting panels. The mounting systems used are designed to be watertight and secure.

7. Myth: You Have to Go Off-Grid to Benefit from Solar

Truth: Going off-grid with solar isn’t necessary, or practical, for most Irish homes. A grid-tied solar PV system lets you use your own power first and draw from the grid when needed. You can even export excess power and earn money through the Clean Export Guarantee (CEG).

8. Myth: Solar Batteries Are a Waste of Money

Truth: While home storage batteries add cost, they increase energy independence by storing excess electricity for evening use. With smart tariffs, you can avoid peak rates. Depending on your lifestyle and electricity usage, a battery can cut bills and speed up your return on investment.

9. Myth: Solar Panels Don’t Last Long

Truth: Most modern solar panels last 25–30 years or more. They come with 20–25 year performance warranties, and many continue working efficiently beyond that. Inverters and batteries may need replacement sooner, but the core system is highly durable.

10. Myth: You Need a South-Facing Roof or It’s Not Worth It

Truth: South-facing roofs are ideal for solar panels, but east- and west-facing orientations also work well in Ireland. These setups spread generation across the day, which can actually help match household usage patterns. WattCharger can help you model output based on your specific roof and home setup.

Don’t Let Myths Block Your Solar Journey

Solar power in Ireland is a smart, sustainable investment. Misinformation can cloud your decision-making. At WattCharger, we’re here to give you the facts, help you plan the right system, and make solar simple.

If you’ve heard something that’s making you hesitate, talk to our experts. We’ll give you honest, tailored advice to help you power your home with confidence.