Solar Batteries

Batteries store excess energy so you can use your own electricity when you need it at night or on cloudy days.

The storage capacity does not cover power needs in the case of a blackout. These systems start from $1500/kwh.

You can install just one AC Battery to start off with and add more later, and that works with any solar system. 

Tesla Powerwall 2

Donnas Electrical is now a Tesla Powerwall Certified Installer, which means we now offer a customized solar-plus-battery solution that enables you to access the free, abundant power of the sun and reduces your reliance on fossil fuels.

With Powerwall you can store solar energy generated during the day for use any time. During the day, the sun shines on your solar panels, charging your battery. At night, your home draws electricity from your battery, powering your home with clean, sustainable energy 24/7.

Installing Powerwall with Donnas Electrical is easy. They take care of everything from system design, permitting, installation,  and financing.

Powerwall consists of a 14 kWh lithium-ion battery pack, liquid thermal control system, an integrated inverter and software that intelligently dispatches electricity when it’s needed most. The unit mounts seamlessly on a wall or on the ground, indoors or outdoors, and is connected to the grid to export excess energy, maximizing your opportunity for economic benefit.

Powerwall can provide a number of benefits:

  • Increasing self-consumption of solar power generation –Powerwall can store surplus solar energy during daylight hours and use that energy later when the sun is not shining.
  • Load shifting – Powerwall can charge during low rate periods when demand for electricity is lower and discharge during more expensive rate periods when electricity demand is higher.
  • Back-up power – Assures power in the event of a grid outage.

Powerwall 2 specs:

  • Mounting: Wall or Floor Mounted, Indoor/Outdoor
  • Inverter: Fully integrated Tesla inverter
  • Usable Capacity: 13.5 kWh
  • Power: 5 kW continuous, 7 kW peak
  • Round Trip Efficiency: 90%
  • Operating Temperature Range: –20°C to 50°C (–4°F to 122°F)
  • Warranty: 10 years
  • Dimensions: 1150 mm x 755 mm x 155 mm (45.3 in x 29.7 in x 6.1 in)”

Cost $10, 990. Minimum solar package required is 5KW or more.

This does not include solar panels, electrical upgrades (if necessary), taxes, permit fees, or any retailer / connection charges that may apply. This estimate includes goods and services tax.


Order now for an Assessment

Emphase AC Batteries

The Enphase AC Battery is an integrated energy storage system that delivers high performance, superior reliability, modular architecture, and safety.

  • Capacity: 1.2 kWh
  • Depth of discharge: >95%
  • Roundtrip cell efficiency: 96%
  • Peak output power: 270 VA
  • Chemistry: Lithium Iron Phosphate (LFP)
  • Cell safety certifications: TUV Rheinland, UL



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