With us being almost three-quarters of the way through 2025, it is worth wondering if it’s still worthwhile installing solar this year or waiting until next year. At SolarTherm UK we believe the best time to get solar is right now, without delay. Every day you delay is a day you are paying high prices for grid electricity instead of generating your own free electricity and taking back control of your power.
This guide will help you see the real financial and environmental benefits of going solar before the end of the year, and why it doesn’t pay to wait.
Future-Proof Your Energy Costs.
With solar panels, you’re pre-paying for the next 30 years of electricity. Most modern solar panels come with a minimum warranty of 25 years but will continue to generate long after that. At SolarTherm UK, we use Bovill.tech 410W all black solar panels which come with an industry leading 99-year warranty.
Instead of being at the mercy of the volatile UK energy market, solar locks in your electricity at a lower equivalent rate for decades. Even though prices are lower than their 2022 peak, international tensions and high inflation are causing energy prices to rise again, with October seeing an annual increase of 2% on the price cap and predictions that energy prices will again rise at the next price cap evaluation.
By investing in solar, you are protecting your household from future energy price rises and taking back control of your energy generation.
The Financial Case for Solar
Let’s take a typical 4kWp domestic solar system as an example
- Upfront cost – £6,000 to £7,500
- Annual generation – around 3,600kWh
- Cost per kWh over the system’s lifetime – around 8p, compared to today’s average supplier rate of 28p per kWh
Depending on your average usage, generation levels, system specs and the amount of self-generated electricity you use, your solar PV system can pay for itself in as little as 6 years, with most residential solar PV systems seeing a return on investment within 10 years. Your system will then continue to produce free electricity for another 15-20 years after that, so over it’s lifetime, you can recoup 2-3 times your original investment. A solar PV system with SolarTherm UK can save you up to 70% on your energy bills. On top of this, most energy suppliers now offer a preferential Smart Export Guarantee tariff to existing customers, paying as much as 15p per kWh for electricity exported back to the grid.
Battery Storage: Maximising Your Solar Power
Adding a home battery to your solar PV system allows you to store excess electricity for use at night or during low generation periods. As solar battery prices continue to fall, payback on your solar system can drop dramatically, helping you reap the benefits of free electricity for longer. A solar battery can help make you even more energy independent and can increase your self-generated energy consumption to up to 80%.
Environmental Benefits of Solar Panels
A 4kWp solar array can cut around one tonne of CO₂ per year. That’s the equivalent of planting 40 trees annually. In 2024, solar provided nearly 5% of the UK’s electricity, much of this coming from one of the 1.5 million homes that already have solar installed. By installing solar, you’re not just saving money, you’re directly contributing to a greener and more sustainable future.
Technology is Smarter Then Ever Before
Solar panels are more efficient, durable and stylish than ever before. Many systems now include smart monitoring, slimline designs and compatibility with EV chargers and smart home tech. Compare this with lower installation costs and there’s never been a better time to invest in solar.
Final Thoughts: Is it Still Worth Going Solar in 2025?
Yes, now more than ever before. With falling installation costs, generous export tariffs and rising long-term energy prices, solar panels deliver:
- Strong financial returns
- Energy independence
- A lasting positive impact on the environment
Ready to Start Your Solar Journey?
Contact SolarTherm UK today for a free no obligation quote and design, tailored to your property, usage and future energy needs. No hard sell, just honest, expert advice. If solar doesn’t make sense for you, we will tell you.
Your home. Your energy. Your future.
