Ireland vs. France: A Tale of Two Solar Strategies (And Why It Matters for Your Roof)

Alright, let’s talk about your electricity bill. It arrives every couple of months, you open it with the same enthusiasm you’d reserve for a jury duty summons, you make a pained noise, and you pay it. It’s a fact of life, like gravity or the crushing realisation that you’ll never be as happy as a dog with a stick.

For years, the conversation around this has been about switching providers to save a few quid. But recently, a new character has entered the chat: strapping solidified sunshine to your roof. Solar panels. Suddenly, you’re not just a consumer of electricity; you’re a producer. You’re a prosumer. You’re a miniature, roof-based ESB, except with fewer high-vis jackets.

Ireland has gone absolutely bananas for solar lately. Seriously, our installed capacity has shot up by nearly 160% in just two years. Over 140,000 Irish homes are now quietly generating their own power, which is pretty cool. The government, in its infinite wisdom, has created a system to encourage this. It’s simple, it’s straightforward, and it has one very clear message.

But what if I told you there was another way? A completely different philosophy for how a country can get its citizens to turn their roofs into power plants? For this, we must look to our sophisticated, cheese-loving cousins in France.

For years, France ran a system that was far more complex, but also offered homeowners a fascinating choice. It was like looking at a parallel universe. But in 2025, something dramatic happened. France threw a massive policy grenade into its own system, blowing up a core part of its solar strategy and, weirdly, making it look a lot more like ours.

This is the story of two countries, two philosophies, and a whole lot of electrons. We’re going to do a deep, deep dive into how Ireland and France get people to put shiny rectangles on their roofs. We’ll use some questionable stick-figure drawings, explain the nerdy bits in a way that makes sense, and figure out what this French plot twist means for the future of solar in Ireland. Grab a beverage. This is going to be a long one.

Chapter 1: The Irish Method, AKA “The Use-It-Or-Lose-Most-Of-It” Plan

Imagine the Irish government’s approach to solar is a guy we’ll call Simple Seán. Seán wants you to save money on your electricity, but he’s a busy man. He doesn’t have time for complicated spreadsheets. He wants one plan that works for everyone.

Seán’s plan has two parts.

Part 1: The Upfront Bribe (The SEAI Grant)

Seán knows that solar panels have a scary price tag. A typical system can cost north of €8,000. Most people don’t have that kind of cash hiding in a biscuit tin. So, Seán’s first move is to give you a little encouragement, in the form of a grant from the Sustainable Energy Authority of Ireland (SEAI).

It works like this: Seán will give you €700 for every kilowatt-peak (kWp) of panels you install, up to 2 kWp. After that, he’ll give you €200 for each extra kWp, but he stops paying altogether once you hit 4 kWp. This means the maximum grant you can get is capped at a tidy €1,800.

A “kilowatt-peak” (kWp) is just a fancy way of measuring the maximum power your panels can theoretically produce under perfect, lab-like sunny conditions. Think of it as the engine size of your solar system.

The process for getting this grant involves a bit of paperwork—you have to apply before any work starts, use an SEAI-registered installer, and get a BER assessment done afterwards. It’s a bit of a faff, but €1,800 is €1,800.

Part 2: The Pocket Money for Leftovers (The Clean Export Guarantee)

Okay, so your panels are on the roof, soaking up that glorious Irish sunshine (stop laughing). They’re generating electricity. Your house is using that electricity to run the dishwasher, charge your phone, and power your kid’s 17-hour gaming session. This is called “self-consumption,” and it’s the most important part of the Irish model. Why? Because every unit of electricity you generate and use yourself is a unit you don’t have to buy from the grid at the full, eye-watering retail price (currently around 35c per unit).

But what happens when the sun is blazing, your panels are going full tilt, and you’re not home? The house doesn’t need all that power. That excess electricity has to go somewhere, so it gets exported back to the grid for your neighbours to use.

For years, you got precisely zero for this. You were just donating free power to your energy company, who probably sent you a very nice Christmas card. But since 2022, we have the Clean Export Guarantee (CEG). This forces all suppliers to pay you for your exported electricity.

How much do they pay? Well, Seán lets them decide for themselves. It’s a competitive market, with rates as of late 2025 ranging from about 16c to 25c per kilowatt-hour (kWh). A kilowatt-hour, by the way, is the basic unit of energy you buy and sell. If you want a deep dive, it’s the amount of energy needed to run a 1,000-watt appliance for one hour.

The Grand Philosophy of Simple Seán

When you put these two pieces together, the message is crystal clear. The real money isn’t in selling power back to the grid. The big win is in not buying it in the first place.

Retail Price: ~35c/kWh

Export Price: ~20c/kWh

Every kWh you self-consume is worth almost double a kWh you export. The grant structure reinforces this. It’s generous for a normal-sized system (up to 4 kWp) but offers nothing for a massive one. Seán isn’t trying to turn you into a mini power-baron. He’s trying to turn you into an “Energy Citizen.” He wants you to become hyper-aware of your energy use. He wants you to start thinking, “The sun’s out, I should probably run the washing machine now.”

The Irish system is designed to do one thing very well: help you reduce your own bills by using the power you generate yourself. It’s simple, effective, and has a singular focus. Now, let’s cross the channel.

Chapter 2: The French Method, AKA “Choose Your Own Adventure” (Pre-2025)

If Ireland’s system is Simple Seán, France’s historical system was Complex Claude. Claude is an over-thinker. He loves flowcharts. He believes choice is the ultimate expression of freedom. And for years, he gave French homeowners a fascinating choice when they decided to go solar.

France is a solar behemoth compared to us. By the end of 2025, they had a whopping 27.5 GW of installed capacity. We’re at about 1.7 GW. To handle this scale, Claude devised a two-path system.

Pathway 1: Autoconsommation (The “Be Like the Irish” Option)

This path was pretty similar to our own. You install panels, use the power yourself, and sell the surplus. But Claude’s incentives were different. Instead of an upfront grant like Seán’s, Claude gave you a prime à l’autoconsommation—an investment bonus paid out over time. And the price he paid for your surplus electricity was always quite low, again encouraging you to use it yourself. So far, so familiar.

But it was Claude’s second path that was the real game-changer.

Pathway 2: Vente Totale (The “Become a Mini-Power-Plant” Option)

This was a completely different beast. Under Vente Totale (Total Sale), you made a deal: you would sell 100% of the electricity your panels generated directly to the grid. Every single electron. You wouldn’t use any of it yourself. You’d continue to buy all your own electricity from your supplier, just like you always had.

Your brain right now: “Why on earth would anyone do that?”

Because of the price. Claude offered a high, government-guaranteed feed-in tariff (FiT), locked in for a 20-year contract. In 2024, for example, a homeowner could lock in a rate of around 20c/kWh for two decades.

This transformed a solar installation from a bill-saving device into a long-term, stable, predictable financial investment. It was like buying a 20-year government bond that you stuck on your roof. It was brilliant for people with huge roofs—think farmhouses or large properties—where their generation potential was way bigger than their household needs. They could monetise that entire roof space and get a guaranteed income stream for 20 years.

This model simply doesn’t exist in the Irish residential scheme. Seán would never.

Chapter 3: The 2025 Plot Twist – France Kills Its Golden Goose

So you had these two systems. Ireland, the simple self-consumer. France, the sophisticated investor with options. For years, they co-existed, two different answers to the same question. And then, in 2025, the French government did something wild.

Effective from March 2025, a decision by the French energy regulator, CRE, completely eliminated the Vente Totale option for all new residential systems under 9 kWc.

Poof. Gone.

And to really hammer the point home, they also slashed the price paid for surplus electricity under the self-consumption model to a measly 4c/kWh.

This is a seismic shift. It’s like Complex Claude got a memo from head office, was told his two-path system was too confusing and expensive, and was ordered to be more like Simple Seán. The official reasoning was that the French market was growing too fast and the government wanted to “slow the current pace of development” and refocus on genuine self-consumption.

Basically, France decided its solar market had grown up. The era of big, juicy subsidies designed to kick-start the industry was over. The technology is cheap enough now, they argued, that its main job should be to power the home it’s attached to, not to be a speculative financial asset.

But Wait, There’s More: The Sneaky VAT Trick

Just as they were taking away the big subsidies, the French government introduced a new one, but it’s a much cleverer, more subtle incentive. As of October 2025, they introduced a reduced VAT rate of 5.5% on the supply and installation of solar systems up to 9 kWc.

This is a big deal. It’s an immediate, point-of-sale discount. It’s administratively way simpler than our post-installation grant rebate system. But here’s the genius/evil part: to qualify for this low VAT rate, the panels have to meet a ridiculously specific set of environmental criteria. We’re talking limits on their carbon footprint during manufacturing, and tiny, specific percentages of silver, lead, and cadmium content.

Who can meet these standards? Mostly European manufacturers with shorter, more transparent supply chains. The first panels certified were from French and Swiss companies. So, this isn’t just a consumer incentive; it’s a sneaky piece of industrial policy designed to support local manufacturing. It’s a masterclass in using the tax code to achieve multiple goals at once.

Chapter 4: A Quick Intermission for a Very Important Point About Your House

We’re deep in the weeds of solar policy, and it’s fascinating stuff, but I need to pause for a second. Because before you even think about which country’s solar philosophy you prefer, you need to think about your house itself. Specifically, how much energy it leaks.

Imagine your house is a bucket. Every day, you pour expensive energy (heat) into it to keep it comfortable. But the bucket has holes. Heat escapes through the roof, the walls, the windows, and the doors. A poorly insulated house is a very, very leaky bucket.

Now, installing solar panels is like buying a fancy, high-tech hose to fill your bucket with free energy from the sun. That’s great. But if your bucket is still full of holes, you’re fighting a losing battle. You’re pouring free energy into a system that’s designed to waste it.

This is why the SEAI themselves recommend that you insulate your home before considering solar panels. It’s the “efficiency first” principle. Plug the leaks first. A well-insulated house needs less energy to stay warm, which means the solar panels you do install can go much, much further.

For many Irish homes, especially older ones with solid walls, the single most effective upgrade you can make is insulation. Things like pumping cavity walls or adding a layer of external wall insulation Dublin can dramatically reduce how much energy your bucket leaks. It’s less glamorous than solar panels, but it’s often the most cost-effective first step in a proper plan for home energy upgrades. Once your bucket is sealed, then you can think about the best way to fill it.

Okay, public service announcement over. Back to the international policy showdown.

Chapter 5: The Head-to-Head – What This All Means in Actual Euros

Let’s put some numbers on this. How do the current Irish and French systems stack up for a typical homeowner?

Let’s imagine a standard 4 kWp system. In Ireland, you get your €1,800 grant and a decent export rate of, say, 20c/kWh. In France, you get no grant, but you get that 5.5% VAT reduction and a tiny export rate of 4c/kWh. You also get a small investment premium.

When you run the numbers, the Irish system currently comes out on top for a standard installation. The combination of our grant and our much higher export rate means the payback period is significantly shorter—around 7 years in our model, compared to over 13 years in France.

But what about the ghost of Vente Totale? If we model a large 9 kWp system under the old French rules, the picture changes entirely. In Ireland, our capped grant makes a system this big a tough sell, with a very long payback period. But under the old French Vente Totale model, that 20-year guaranteed income stream made it a solid, bankable investment with a payback period of around 10 years. It shows how a guaranteed tariff can unlock the potential of large roofs that our current system ignores.

This is the core philosophical difference. Ireland’s policy is about helping you save money. France’s old policy was about enabling you to make money. Now, France has decided that for small-scale residential, saving money is the only game in town, just like here.

Chapter 6: Lessons for Ireland from the French Revolution

So, what can we learn from all this? France’s journey from a complex, dual-pathway system to a simpler, self-consumption model offers some huge insights for Ireland as our own market matures.

Lesson 1: There’s Untapped Potential on Big Roofs

The Vente Totale model proved that if you give people investment security, they will turn huge, unused roofs into power stations. Our “one-size-fits-all” model is great for semi-detached houses, but it doesn’t do much for the farmer with a massive shed roof or the person with a mansion. We could be leaving a lot of clean energy on the table.

Perhaps it’s time for Ireland to consider a tiered system. Keep the current model for most people, but maybe introduce a “CEG-Plus” tariff—a guaranteed, long-term rate for systems over a certain size. This could unlock a whole new wave of private investment and generation without messing with the system that’s working so well for the mainstream market.

Lesson 2: Tax Incentives are Simpler and Smarter

France’s move to a point-of-sale VAT reduction is just… better than our grant system. It’s cleaner, faster, and has less administrative overhead for everyone involved—the homeowner, the installer, and the state. The whole rigmarole of applying to the SEAI, waiting for a Letter of Offer, getting the work done, getting a BER, and then waiting for a bank transfer feels clunky by comparison. A VAT reduction is immediate and simple. And as France has shown, you can even attach clever conditions to it to support local industry.

Lesson 3: Policy Has to Evolve

The biggest lesson is that government support schemes aren’t meant to last forever. They are designed to kick-start a market. As the market matures and technology costs fall, the subsidies should change. France has just gone through a classic “maturation pivot.”

Ireland’s solar market is growing up fast. The current grant-and-CEG model has been a spectacular success. But we shouldn’t see it as permanent. We need to be thinking about what “Phase 2” looks like. Will grants be phased out? Will they be replaced by tax breaks? Will we introduce tiered export rates? The French experience provides a valuable roadmap.

By understanding why France made its choices—both in creating its old system and in its recent decision to dismantle it—we can make smarter choices for our own energy future. We’ve successfully lit the fuse on our own solar revolution; now we need to make sure we can steer the rocket. And a big part of that is understanding not just the technology, but the clever, and sometimes weird, policies that drive it. The good news is that no matter the policy, the underlying maths of solar is getting better every year, and as we’ve explored in detail before, the benefits go far beyond just your electricity bill.

If you’re ready to explore how this technology can work for your home, it’s time to look into getting Solar Panel and reducing your elecricity costs.