Clean Export Guarantee Ireland 2026: Selling Electricity Back to the Grid

What Is the Clean Export Guarantee (CEG)?

The Clean Export Guarantee is a government-backed scheme that requires licensed electricity suppliers in Ireland to offer a payment to domestic micro-generators for surplus renewable electricity exported to the national grid. It was introduced under the Electricity Regulation (Amendment) (Clean Export Guarantee) Act 2024 and came into full effect following the EU’s Renewable Energy Directive.

In plain language: when your solar panels produce more electricity than your home is using at any given moment, that excess power flows out through your meter and into the grid. Under the CEG, your electricity supplier must pay you for every kilowatt-hour (kWh) of clean energy you export.

The CEG applies to micro-generation installations up to 50 kW in capacity. For a typical Irish home with a 4–6 kWp solar panel system, this threshold is never an issue. The scheme covers solar PV, small wind turbines, and micro-hydro, but the vast majority of participants are solar panel owners.

How the CEG Works: Step by Step

The process is straightforward once you understand the moving parts:

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1. Your solar panels generate electricity during daylight hours. On a sunny day, a 4 kWp system in Ireland can produce 15–20 kWh.
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2. Your home uses what it needs first. Appliances, heating, hot water — anything running at that moment draws from your solar output before touching grid power.
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3. Surplus electricity flows to the grid. If your panels are generating 3 kW but your home only needs 1 kW, the remaining 2 kW is exported.
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4. Your smart meter records the export. ESB Networks’ smart meters measure electricity flowing in both directions, logging exactly how many kWh you export in each billing period.
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5. Your supplier pays you. The exported kWh appear as a credit on your electricity bill, reducing what you owe or generating a net credit.
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It is important to understand that you are not paid the same rate for exports as you pay for imports. Export rates in 2026 range from roughly 18c to 24c per kWh, while import rates typically sit between 35c and 45c per kWh. This difference is why self-consumption is generally more valuable than exporting — but export income is still a significant bonus on top of your savings.

CEG Export Rates by Supplier — 2026

Each electricity supplier sets its own CEG export rate. These rates can change, and some suppliers offer higher rates as part of specific tariff bundles. The following table shows the approximate export rates being offered in mid-2026:

Important: When choosing a supplier for solar export, do not look at the export rate in isolation. A supplier offering 18c export but 35c import may save you more overall than one offering 24c export but 44c import. Always compare the total package including standing charges, import rates, and any solar-specific discounts.

Tax-Free Export Income: The €400 Threshold

One of the most appealing aspects of the CEG is the tax treatment. The Irish government introduced an income tax exemption on the first €400 per year of micro-generation export income. This exemption is currently legislated to remain in place until the end of 2028.

What this means in practice:

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• If you earn €350 per year from electricity exports, you pay zero tax on that income.
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• If you earn €500 per year, only €100 is subject to income tax at your marginal rate.
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• For most homeowners with a standard 4–6 kWp system, annual export income falls within or close to the €400 threshold, meaning little or no tax is owed.
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You do not need to register for VAT. The exemption is administered through your annual tax return (or by contacting Revenue if you are a PAYE worker). It is one of the simplest tax reliefs available to Irish households.

How Much Can You Earn? Worked Examples

The amount you earn from the CEG depends on three main factors: the size of your solar system, whether you have a battery, and how much electricity you use during the day. Below are realistic worked examples for Irish conditions in 2026.

Example 1: 4 kWp System Without Battery

A 4 kWp system in Ireland generates approximately 3,400–3,800 kWh per year. Without a battery, a typical household self-consumes around 60% and exports roughly 40%.

Example 2: 4 kWp System With Battery

Adding a home battery (typically 5–10 kWh capacity) allows you to store surplus solar energy for use in the evening, dramatically increasing self-consumption. Export drops but overall savings rise.

While export income is lower with a battery, the total financial benefit is higher because every kWh you use yourself avoids paying 35–45c import rates, versus receiving only 18–24c for exports. For a detailed analysis of whether a battery makes sense for your home, see our guide: Is It Worth Getting a Battery With Solar Panels in Ireland?

Example 3: 6 kWp System Without Battery

A larger 6 kWp system generates more power and exports a higher proportion, especially in summer months when production far exceeds household demand.

With a 6 kWp system, you may exceed the €400 tax-free threshold, but even after tax the income is substantial. Combined with self-consumption savings of €1,200+ per year, a 6 kWp system can deliver a total annual benefit exceeding €1,700.

Use our Solar Panel Calculator to get a personalised estimate based on your roof, location, and energy usage.

Smart Meter Requirement

To participate in the CEG, you must have a smart meter installed. Smart meters are the only type of meter capable of recording both electricity imported from the grid and electricity exported to it.

The good news: smart meters are provided and installed by ESB Networks completely free of charge. Ireland’s national smart meter rollout is well advanced, and the majority of homes now have one. If yours has not yet been upgraded, here is what to do:

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1. Contact your electricity supplier and tell them you have (or are installing) solar panels and need a smart meter for CEG participation.
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2. Your supplier will submit a request to ESB Networks on your behalf.
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3. ESB Networks will schedule an installation appointment. The swap typically takes 30–45 minutes and requires brief power interruption.
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4. Once installed, your meter will begin recording export data from the next billing cycle.
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If you already have a smart meter (check for a digital display rather than a spinning disc), you may only need your supplier to activate the export register. This can sometimes be done remotely without an engineer visit.

How to Register for the CEG: Step by Step

Getting set up to receive CEG payments involves a few administrative steps. Here is the complete process:

Step 1: Install Your Solar Panel System

Your system must be installed by a SEAI-registered installer and comply with all relevant electrical standards (IS 10101 and EN 50549). Your installer will handle the technical compliance and provide you with the necessary documentation.

Step 2: Register as a Micro-Generator with ESB Networks

Your installer will typically submit the NC6 declaration form to ESB Networks on your behalf. This form notifies ESB Networks that a micro-generation system has been connected to the grid at your address. You will receive confirmation once the registration is processed.

Step 3: Ensure You Have a Smart Meter

If you do not already have one, request a smart meter through your supplier as described above. Without a smart meter, your exports cannot be measured or paid for.

Step 4: Contact Your Electricity Supplier

Call or email your supplier and request to be registered for their CEG export tariff. You will need to provide:

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• Your MPRN (Meter Point Reference Number)
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• Confirmation of your micro-generation system capacity (in kWp)
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• Your NC6 registration confirmation from ESB Networks
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Step 5: Start Earning

Once registered, your export payments will appear as credits on your regular electricity bills. Most suppliers show export and import separately, so you can clearly see how much you are earning.

The entire registration process typically takes 2–6 weeks from the date your solar panels are commissioned. Some delays may occur if a smart meter installation is required.

Best Supplier for Solar Export Rates

Based on the 2026 export rates, Electric Ireland currently offers the highest CEG rate at 24c per kWh, followed by SSE Airtricity at 22c. However, the best supplier for you depends on your overall electricity usage pattern.

Here is a framework for choosing:

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• High daytime usage (working from home, EV charging): Prioritise a low import rate. You will self-consume most of your solar and export relatively little, so the export rate matters less.
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• Low daytime usage (house empty during the day): A higher export rate becomes more valuable because you will be exporting a larger share of your solar generation.
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• Large system (6 kWp+): Export volume is significant, so even a 2–4c difference per kWh adds up to €50–90 per year. The higher export rate suppliers become more attractive.
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• Small system (3–4 kWp) with battery: You will export very little. Focus entirely on the import rate and standing charges.
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It is also worth noting that you can switch suppliers at any time without affecting your solar installation or CEG registration. If a supplier improves their export rate or a new entrant offers better terms, switching is straightforward and typically takes two to four weeks.

Maximising Export Income vs Self-Consumption: Which Strategy Wins?

This is one of the most common questions we get from solar panel owners, and the answer is clear: self-consumption almost always delivers better value than exporting.

The maths is simple. If you use a kWh yourself, you avoid buying it at 35–45c. If you export that same kWh, you receive 18–24c. Self-consumption is worth roughly twice as much as exporting.

That said, you cannot always self-consume everything. On a bright June afternoon your panels may be producing 4 kW while your home only needs 0.5 kW. Here are practical strategies to maximise self-consumption before relying on export income:

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• Time your heavy appliances: Run your washing machine, tumble dryer, and dishwasher during peak solar hours (11am–3pm).
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• Heat water with solar: Use a solar diverter (like an Eddi or iBoost) to send surplus electricity to your immersion heater instead of exporting it.
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• Charge your EV during the day: If you have an electric vehicle and can charge at home during the day, this is one of the highest-value uses of surplus solar.
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• Install a battery: A home battery stores surplus energy for evening use, typically boosting self-consumption from 55–65% to 80–90%.
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The ideal approach is a hybrid strategy: maximise self-consumption through smart scheduling and possibly a battery, then let the CEG earn you money on whatever surplus remains. This way you benefit from both the higher value of self-consumption and the additional income from exports.

Will Export Rates Go Up or Down?

This is the question on every solar owner’s mind. Here is what the key factors suggest for the next few years:

Arguments for rates staying stable or rising:

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• Ireland’s renewable energy targets require massive growth in distributed generation. The government has a strong incentive to keep the CEG attractive.
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• Wholesale electricity prices in Ireland remain elevated compared to pre-2021 levels, supporting higher export valuations.
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• Competition among suppliers for solar customers is increasing, which puts upward pressure on export rates as a differentiator.
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Arguments for rates declining over time:

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• As more solar is deployed, midday wholesale prices may drop (the so-called “solar duck curve”), reducing the value of daytime exports.
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• The €400 tax-free threshold is only guaranteed until 2028. If it is not renewed, the net value of export income would fall for higher earners.
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• International trends show export rates in mature solar markets (Germany, Australia) have declined over time as solar penetration increases.
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Our view: Export rates in Ireland are likely to remain in the 18–25c range through 2027–2028. Beyond that, gradual downward pressure is possible but not certain. The key takeaway is that today’s rates are favourable, and every year you delay is a year of export income you miss out on. The best time to install solar panels and start earning is now.

Frequently Asked Questions

The Bottom Line

The Clean Export Guarantee makes solar panels in Ireland an even better investment in 2026. With export rates of 18–24c per kWh, a tax-free threshold of €400 per year, and a free smart meter from ESB Networks, the barriers to earning money from your roof have never been lower.

For a typical 4 kWp system, you can expect to earn €280–336 per year in export income alone, on top of €800–1,200 in self-consumption savings. A larger 6 kWp system pushes total annual benefits above €1,700. Over a 25-year panel lifetime, that is a cumulative benefit of €25,000–40,000+ from an investment that typically costs €5,000–8,000 after the SEAI grant.

The CEG, combined with the SEAI grant, generous tax treatment, and ever-improving panel technology, means there has never been a better time for Irish homeowners to go solar. The grid is ready for your clean energy — and it is willing to pay for it.