Battery Energy Storage

Battery Energy Storage Systems

Solar panels only generate electricity during daylight hours, but your home uses energy 24/7. Battery storage systems allow you to store excess solar energy generated during the day for use in the evening, maximizing your self-consumption and reducing grid dependence.

With rising electricity prices and variable tariffs, battery storage makes more financial sense than ever. Store cheap solar energy and avoid expensive peak-time grid electricity.

Why Add Battery Storage?

• Maximize Self-Consumption - Use your own solar energy in the evening instead of exporting it for low SEG rates.
• Reduce Grid Reliance - Achieve 70-90% energy independence by combining solar panels with battery storage.
• Time-of-Use Tariff Optimization - Store cheap off-peak electricity and use it during expensive peak times.
• Backup Power - Some systems provide backup during power cuts (varies by model).
• Future-Proof Your System - Easily add batteries to existing solar installations or install them simultaneously.

Battery Technologies

Lithium-Ion Batteries: The most popular choice. High efficiency (90-95%), long lifespan (10-15 years), compact size. We install leading brands including Tesla Powerwall, GivEnergy, and SolarEdge.

Sizing Your Battery: Typical home batteries range from 5 kWh to 20 kWh. We'll analyze your evening consumption to recommend the optimal size.

How It Works

1. Daytime: Solar panels generate electricity. Priority goes to powering your home first.
2. Excess Generation: Any surplus energy charges your battery.
3. Battery Full: Once the battery is full, excess energy exports to the grid (earning SEG payments).
4. Evening/Night: Your home draws power from the battery instead of the grid.
5. Battery Empty: Grid electricity supplements as needed.

Battery Specifications (Example Systems)

• GivEnergy 9.5 kWh: Modular system, expandable, 90% depth of discharge, 10-year warranty.
• Tesla Powerwall 2 (13.5 kWh): Premium option, integrated inverter, sleek design, 10-year warranty.
• SolarEdge Energy Bank (10-23 kWh): Scalable, works with SolarEdge inverters, backup capability.