How to Choose the Right Export Tariff for Your Solar PV System

Understanding Export Tariffs for Solar PV Systems in the UK

Export tariffs are a vital element for anyone investing in solar PV systems, especially as the UK transitions to a more decentralised, renewable energy grid. Export tariffs, such as those offered under the Smart Export Guarantee (SEG), pay you for the surplus electricity your solar panels export back to the grid. With a wide range of export tariffs available from different energy suppliers, understanding how these tariffs work-and which one is best for your unique circumstances-can have a significant impact on your solar return on investment.

The SEG, launched in 2020, requires licensed electricity suppliers to offer export tariffs to small-scale, low-carbon generators. Tariffs can be fixed or variable, and rates vary widely, with 2024 figures showing a range from as low as 2p/kWh up to 16p/kWh or more for the most competitive offers (Ofgem). Choosing the right tariff is about more than just the rate; contract flexibility, payment frequency, and customer service also play crucial roles.

Best Export Tariff for Solar PV Owners in 2025

The best export tariff for your solar PV system is determined by a combination of factors:

• Your system size and average export volume
• Whether you have battery storage and how you use it
• Your energy consumption habits-especially how much power you use during daylight hours versus what you export
• The rates, terms, and customer service reputation of the supplier

Some suppliers offer higher SEG rates if you also purchase your electricity from them, while others provide competitive rates to all eligible generators. In 2025, the most attractive SEG rates are typically above 12p/kWh, but the best deal may depend on your ability to meet specific supplier requirements, such as the installation of a compatible smart meter. Always check for any hidden fees or minimum contract periods.

How Consumption Habits Shape Your Export Tariff Decision

Your energy consumption habits are central to choosing the right export tariff. If you are home during the day and use much of your generated solar power directly, you will export less, making the export tariff rate less critical to your overall savings. Conversely, if your property is often empty during daylight hours or you have a large system relative to your needs, you will export more and benefit more from a higher export rate. Battery storage systems can dramatically shift your export profile. Instead of exporting excess power during the day, batteries allow you to store surplus energy for use in the evening, reducing your reliance on the grid and potentially lowering your export volumes. This means that the value of a high export tariff may decrease if you maximise self-consumption (Energy Saving Trust). Analysing your half-hourly usage data (available from your smart meter) can help you and your installer, such as Atlantic Renewables, determine the best tariff for your habits.

Comparing Export Tariff Rates and Terms for Maximum Value

When comparing export tariffs, it is essential to look beyond the headline rate per kWh. Key considerations include:

• Fixed vs. variable rates: Fixed rates provide certainty, while variable rates can rise or fall with market conditions.
• Minimum contract length and exit fees: Some suppliers lock you in for a year or more.
• Payment schedules: Monthly or quarterly payments can affect your cash flow.
• Supplier requirements: Some tariffs are only available if you also buy your electricity from the same supplier.
• Smart meter compatibility: Most SEG tariffs require a smart meter capable of half-hourly export readings.

Comprehensive comparisons are available from trusted resources like Uswitch and MoneySavingExpert, which regularly update the best available rates and providers. Always read the small print and consider the supplier’s track record for customer service.

Why Customer Service Is Essential When Choosing an Export Tariff

Customer service can make or break your experience with an export tariff. Issues such as delayed payments, unclear billing, or unresponsive support can quickly outweigh the benefits of a high export rate. Look for suppliers with positive customer reviews, clear communication channels, and a history of resolving issues efficiently. At Atlantic Renewables, our engineers frequently help customers navigate export tariff options and resolve supplier issues, ensuring a smooth and profitable solar experience.

A supplier’s reputation for customer service is especially important if you ever need to switch tariffs, update your system, or resolve disputes over export readings. Reliable support is invaluable for maximising your solar investment.

What Are the Most Competitive Export Tariffs in 2025?

As of 2025, the most competitive SEG export tariffs in the UK are offering rates between 12p and 16p per kWh for exported electricity, with some smaller suppliers occasionally offering promotional rates above this range. However, these rates can change frequently, and eligibility criteria may apply, such as being an existing customer or having a specific type of smart meter.

According to the Energy Saving Trust, the average UK household with a 4kW solar PV system could earn between £100 and £250 per year from SEG payments, depending on export volumes and tariff rates. Always check the latest offers and consider the overall package, including customer service and contract flexibility.

How to Switch Export Tariffs Without Disruption

Switching export tariffs is generally straightforward, especially if your solar PV system is already registered for the SEG and you have a smart meter installed. Most suppliers allow you to switch with minimal paperwork, but you may need to provide recent meter readings and proof of Microgeneration Certification Scheme (MCS) compliance. If you encounter any challenges during the switching process, Atlantic Renewables' team of experts can provide guidance and support to ensure you continue to receive the best value from your solar investment.

It is advisable to notify your current and new suppliers in advance and keep records of all communications and meter readings to avoid any gaps in payments or disputes over exported volumes.

How to Optimise Your Solar Export Earnings with Atlantic Renewables

At Atlantic Renewables, we specialise in helping customers optimise their solar PV and battery storage systems for maximum financial return. Our engineers can analyse your consumption patterns, recommend the most suitable export tariffs, and assist with switching suppliers or resolving technical issues.

If you are looking to get a solar PV system of your own or have an issue with an existing system, please get in touch and we would be happy to help. Call us on 0161 207 4044 and start taking advantage of your new solar system today!