13kWh Battery
Store Your Solar Energy for Night-Time Use
If your home already has a solar system and you’re exporting excess energy back to the grid for only 5c per kWh, a 13kWh battery is the ideal upgrade to increase your self-consumption. Instead of sending your solar energy to the grid at low rates, you can store it in the battery and use it during peak evening hours when electricity costs can reach up to 40c per kWh.
Maximise Self-Consumption and Reduce Grid Reliance
With a 13kWh battery, you can store excess solar power generated during the day and use it when the sun goes down, ensuring you’re not paying high prices for grid electricity. This setup is perfect for homes that use 30% of their energy during the day and the remaining 70% at night. By increasing self-consumption, you’ll save more and rely less on the grid, especially during peak periods.
Optimised for Medium-Sized Homes with Solar
A 13kWh battery is the perfect addition for households with a 6kW solar system in Adelaide that want to store their daytime solar generation and use it to power their home in the evening. This solution provides substantial savings by reducing the need to purchase expensive electricity from the grid at night.
How a 13kWh Battery Increases Solar Self-Consumption in Adelaide
Let’s look at how a 13kWh battery helps you increase your solar self-consumption. We’ll focus on a typical 6kW solar system generating around 25.2kWh per day in Adelaide, and a home that uses 30% of its energy during the day and 70% at night.
1. Daytime Usage: Using 30% of Solar Energy Directly
For homes with a 30/70 daytime to night-time usage split, about 30% of your solar energy is used directly during the day, while the other 70% can be stored in a 13kWh battery for evening and night-time use.
- Scenario:
- Solar System Size: 6kW, generating 25.2kWh/day on average.
- Daytime Consumption (30%): 7.56kWh used during the day.
- Excess Solar Energy: 17.64kWh/day available to store in the battery.
- Battery Capacity Used: 13kWh/day stored in the battery for night-time use.
- Excess Solar Exported to Grid: 4.64kWh/day (if battery is full).
2. Ideal Battery Size: 13kWh for Night-Time Usage
For homes that use 70% of their energy at night, a 13kWh battery is the perfect size to capture most of the excess solar energy produced by your 6kW system. This ensures you’re using your solar energy to power your home during the evening, significantly reducing your reliance on the grid.
- Battery Size: 13kWh
- Daytime Solar Generation: 25.2kWh/day
- Excess Energy Stored in Battery: 13kWh stored for evening use
- Grid Reliance at Night: Minimal (only if battery is fully depleted)
3. Savings from Self-Consumption with a 13kWh Battery
By storing excess energy in a 13kWh battery, you can eliminate the need to draw energy from the grid during the night when electricity prices are highest (up to 40c per kWh). This setup allows you to maximise savings and increase self-sufficiency.
- Night-Time Usage Powered by Solar: 13kWh
- Savings from Night-Time Solar Usage: 13kWh x $0.40 = $5.20/day
- Annual Savings from Battery Use: $5.20/day x 365 = $1,898/year