The UK government has launched the Ultra-Long Duration Energy Storage (Ultra-LDES) Challenge, backed by £28 million from UK Research and Innovation (UKRI)1, to strengthen energy security and protect households from price spikes. This initiative, launched on 20 August 2026, invites innovators to develop technologies capable of storing clean electricity for 100 hours or more, including advanced batteries and underground hydrogen storage. The challenge is part of a broader £102 million investment in clean energy, aiming to cut energy system costs and accelerate the UK's shift to a secure, low-carbon energy future. Science Minister Chris McDonald stated, "When we unlock the potential of science and innovation, it can improve all of our lives." Energy Minister Michael Shanks emphasised that "Homegrown clean energy is our route to more affordable bills and energy security and storing it for when we need it most is critical."
This article explores how the UK is investing in long-term energy storage and how home energy management can empower you. Fuse Energy is committed to a future where energy is abundant and easy to manage. Click here to switch to Fuse Energy today and take control of your home's energy.
Bolstering energy security and grid stability
Currently, wind and solar are among the cheapest ways to generate electricity in the UK. However, their intermittent nature means the grid needs reliable backup when the wind is not blowing or the sun is not shining. This often involves gas-fired generation, which contributes to higher costs and emissions. Advanced energy storage solutions are crucial for balancing the grid, ensuring a continuous supply of clean energy, and reducing dependence on volatile fossil fuel markets. The Ultra-LDES Challenge directly addresses this by seeking technologies that can store energy for extended periods, providing resilience and stability to the National Grid.
Empowering homeowners with clean energy storage
While the Ultra-LDES Challenge focuses on large-scale, long-Duration solutions, the principles of clean energy storage extend to individual homes. For UK homeowners, investing in home battery storage systems, often paired with solar panels, offers a powerful way to gain control over their energy consumption and costs.
Home battery systems offer a tangible way for homeowners to store excess solar generation or cheap off-peak electricity. While requiring an initial investment, these systems provide significant long-term benefits by increasing energy independence and reducing reliance on grid electricity during peak times. This aligns perfectly with Fuse Energy's vision of a future where energy is abundant and empowers individuals.
At Fuse Energy, we believe in putting "power to play with" into the hands of our customers. We understand that for homeowners, control over energy means peace of mind and financial savings. While Fuse Energy does not currently install home battery systems, we are committed to providing tariffs and an app experience that maximises the benefits for those who have them.
Maximising your stored energy
Our innovative tariffs are designed to reward you for using energy when it is cheapest and cleanest, and for feeding excess back to the grid. If you have a home battery, you can charge it during off-peak hours or with your own solar generation, then discharge it during peak times to power your home or even sell energy back, further reducing your bills. This smart approach helps stabilise the grid and puts you in control.
A digital-first experience
The Fuse Energy app provides transparency and control over your energy usage. You can monitor your consumption, track your costs, and make informed decisions about when to use or store energy. Our goal is to make energy invisible - so abundant and easy to manage that you stop thinking about it.
What is the Ultra-Long Duration Energy Storage Challenge?
How does home battery storage contribute to energy security?
Home battery storage enhances energy security by allowing homeowners to store self-generated renewable electricity (e.g., from solar panels) or cheap off-peak grid electricity. This reduces reliance on the National Grid during peak demand or when energy prices are high, contributing to individual energy independence and overall grid stability.
Are there grants available for home energy storage in the UK?
While the Ultra-LDES Challenge provides grants for large-scale innovation, there are currently no specific government grants for standalone home energy storage systems for individual homeowners. It is always advisable to check official government websites or trusted energy advice services for the latest information on available schemes or incentives.
The UK's commitment to advanced energy storage, from national infrastructure to individual homes, marks a significant step towards a sustainable and secure energy future. By embracing clean energy storage, homeowners can play a vital role in this transition, enjoying greater independence and contributing to a greener grid.
Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you are paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. Our 24/7 human support team is always on hand with fast response times whenever you need help. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.
References
- UK Research and Innovation. New challenge launched to store clean energy for longer
