Adding battery storage to your solar PV system can significantly enhance its benefits by providing energy security and maximizing your solar investment. Here’s how battery storage would help:

1. Store excess solar energy generated during the day for use at night
2. Reduce reliance on grid electricity during peak rate periods
3. Potentially participate in grid services programs for additional income
4. Further reduce your carbon footprint by using more of your solar generation

However, there are some important considerations:

1. Battery systems are a significant additional investment (£4000 – £10000+ depending on capacity)
2. Installation costs vary based on your existing setup
3. Payback period depends on your electricity rates and usage patterns
4. Battery life is typically 10-15 years, shorter than solar panels