The Benefits of Battery Storage for Solar PV Systems
1. Maximising Solar Energy Usage
Battery storage changes that. It allows surplus solar energy to be stored and used later in the day when the sun has gone down. This means you can use more of the electricity your system produces, reducing the need to buy energy from the grid.
2. Reduced Energy Bills
For commercial premises operating beyond daylight hours or with consistent base loads, this can translate to substantial long-term savings and a more predictable energy budget.
3. Protection Against Rising Energy Prices
Some batteries can even be configured to charge from the grid during off-peak periods (when electricity is cheaper) and discharge during peak times – further enhancing cost savings.
4. Backup Power and Energy Resilience
Many modern battery systems offer backup functionality. In the event of a power cut, a solar PV system with battery storage can continue to power essential appliances and systems, maintaining operations and comfort.
This is especially useful for:
- Businesses that cannot afford downtime
- Homes with vulnerable residents
- Areas with unreliable grid infrastructure
Not all systems provide backup as standard, so it’s important to select the right battery solution for this functionality.
5. Increased Energy Independence
This independence is particularly appealing to those aiming to reduce their environmental impact or to take control of their energy future, particularly in the context of net-zero goals.
6. Environmental Benefits
Using more self-generated solar power reduces your carbon footprint. The more energy you consume from your own system – rather than from fossil fuel–powered grid sources – the greater your contribution to reducing greenhouse gas emissions.
Battery storage enables this by allowing solar energy to be used during non-daylight hours, thus increasing overall system efficiency and environmental impact.
7. Support for Time-of-Use Tariffs and Grid Services
Take advantage of time-of-use tariffs (e.g., charge the battery when electricity is cheap and use it when it’s expensive)
Participate in demand response programs or grid balancing services, where owners are compensated for allowing utilities to use stored energy during peak times
These opportunities can create additional revenue streams and further improve return on investment.
Conclusion
For those considering investing in solar or looking to upgrade an existing system, battery storage should be a key part of the conversation.
