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Solar Electricity Battery Storage

Name: Solar Solutions from Energy Management Ireland
Address: Blackrock, Dublin, A94 N6D0, IE
Telephone: 01 -2895038

A solar battery storage system allows homes and businesses to store excess electricity generated by solar panels for later use, instead of sending it back to the grid. This means you can use stored energy at night or during peak hours, reducing reliance on the electricity grid and maximizing cost savings. While solar panels alone significantly cut electricity bills, adding a battery increases self-sufficiency and further lowers costs.

A solar battery works by capturing surplus energy when solar panels generate more than what’s being used. Instead of exporting this excess power, the battery stores it for later. The most common size in Ireland is 5kWh, which can power essential household appliances or multiple loads of laundry. However, larger batteries are available for higher energy demands.

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Cost and Savings

A 5kWh solar battery costs between €1,700 and €2,200, with an additional €900 to €1,100 if a hybrid inverter is needed. While the SEAI grant no longer covers battery storage, it can still be a valuable investment. Without a battery, homes typically use 65%–70% of their solar power, with the rest exported to the grid. With battery storage, this can increase to 85%–90%, maximizing savings. Many homeowners also benefit from dual-rate electricity tariffs, charging their battery at night when rates are lower and using stored energy during the day, saving an additional €300+ per year.

Do Solar Batteries Work During Power Cuts?

No. ESB regulations require that solar PV systems and batteries shut down during a power outage to prevent electricity from back-feeding into the grid.

For those who consume more energy in the evenings or have access to cheap night-rate electricity, a solar battery can increase energy independence and reduce long-term electricity costs.

Is a Solar Battery Worth It?

For those who consume more energy in the evenings or have access to cheap night-rate electricity, a solar battery can increase energy independence and reduce long-term electricity costs. If most of your energy use occurs during daylight hours, a battery may not be essential. However, as energy prices continue to rise, battery storage offers greater control over electricity usage and long-term financial benefits.

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