The United Kingdom has been at the forefront of adopting renewable energy technologies, with solar power playing a significant role in the country’s clean energy transition. One of the attractive features of having a solar panel system installed on your property is the ability to generate excess electricity and potentially sell it back to the grid. This practice not only helps homeowners reduce their energy bills but also contributes to the overall growth of renewable energy generation. In this article, we’ll explore how selling excess solar electricity works in the UK, the mechanisms in place, and the changing landscape of renewable energy incentives.
Feed-in Tariffs: Pioneering the Way
The Feed-in Tariff (FiT) scheme was initially introduced in 2010 to encourage homeowners and businesses to invest in small-scale renewable energy systems, including solar panels. Under the FiT scheme, participants are paid for the electricity they generate and export to the grid. This system was designed to incentivise the adoption of solar power, spurring an increase in solar installations across the country.
The scheme stopped taking on new applicants in 2019 though existing users can remain on this tariff and get paid for their exported energy with some generators able to receive support for between 10 and 25 years. Through FiT, homeowners are paid a set rate per kilowatt-hour (kWh) of electricity generated and supplied to the grid, which varies depending on the size of the installation, the technology used, and the date of installation.
The Evolution: Smart Export Guarantee (SEG)
In April 2019, the FiT scheme was closed to new participants. However, the UK government introduced the Smart Export Guarantee (SEG) as its replacement. Under the SEG, small installations with solar panel systems are eligible to receive payments for the surplus electricity they export to the grid. Unlike the fixed rates of FiT, the SEG introduces a market-based mechanism where energy suppliers offer varying rates for exported energy.
Energy suppliers with more than 150,000 customers are required to provide at least one SEG tariff option to their solar customers. The rates offered have been mostly lower than FIT and can vary widely among suppliers, but homeowners have the flexibility to choose the tariff that best suits their preferences. This shift to a market-driven approach aims to promote competition among energy suppliers and potentially lead to better rates for consumers.
Research Your Options Before Selling Excess Electricity
1. Choose the Right Supplier: Research various energy suppliers offering SEG tariffs and compare their rates. Keep in mind that some suppliers may offer fixed rates, while others might have time-of-use variations.
2. Monitor Energy Production: Regularly monitor your solar panel system’s energy production to understand how much excess energy you’re generating. This can also help you make informed decisions about when to use energy-intensive appliances or devices.
3. Optimise Energy Consumption: Align your energy consumption with your solar generation patterns. Whenever possible, use energy-intensive appliances during peak solar production hours to prioritise self-consumption and efficiently balance the amount of energy you export.
4. Consider Battery Storage: Installing a battery storage system alongside your solar panels can allow you to store excess energy for use during non-sunny periods. This can increase your energy independence while making sure your exported energy is truly surplus.
5. Stay Informed: Always seek the most up to date professional advice to understand changes in regulations, tariffs, and incentives related to solar energy and excess electricity export. Staying informed can help you make the most of your solar system’s potential.
Looking Ahead: The Renewable Energy Landscape
The commitment to transitioning to a low-carbon economy has paved the way for innovative energy policies and incentives. As we pursue ambitious renewable energy targets, homeowners stand to benefit from evolving schemes that promote clean energy generation, energy efficiency, and reduced carbon emissions.
Beyond the SEG, emerging technologies like peer-to-peer energy trading platforms and flexible energy marketplaces hold the potential to improve how excess solar electricity is bought and sold. These systems could enable homeowners to directly trade their excess energy with neighbours or businesses, creating decentralised energy markets.
The opportunity to sell excess solar electricity in the UK contributes to the country’s renewable energy goals. From the pioneering Feed-in Tariffs to the market-driven Smart Export Guarantee and the potential for future innovations, the UK’s approach to incentivising small-scale renewable energy generation reflects a commitment to a sustainable and cleaner energy future.
