Solar Home Battery Backup - Tesla + EmPower Solar - EmPower Solar
SOLAR + BATTERY

Reliable, renewable
energy–
day or night.

BATTERY BACKUP + STORAGE

Power + Efficiency

Get uninterrupted power and maximum efficiency EmPower Solar's home battery backup system. The Tesla Powerwall provides greater energy independence, ensures reliable home energy during outages, and helps you save more. With a focus on sustainable energy independence, our systems are designed for durability and are supported by comprehensive warranties.

The Tesla Powerwall 3 is here

Available for new solar installations and existing solar enhancements, this revolutionary technology offers


  • Whole home backup with a single unit for most homes
  • Durable exterior and extreme weather protection
  • Maximum value of your stored energy
  • Real-time data access for monitoring + consumption control

GAIN ENERGY INDEPENDENCE

Save solar for when the sun isn’t shining.

Store the electricity your panels generate and for use whenever you need. Access sustainable energy, anytime, for greater freedom from rising energy costs.


  • Reduce reliance on the grid
  • Store excess solar energy
  • Use your stored power 24/7

PROTECT AGAINST OUTAGES

Blackouts?
No big deal.

Keep the lights on and the fridge running with reliable, uninterrupted power! With a battery backup, outages are a minor inconvenience. Tesla’s Powerwall takes over automatically to keep your essentials up and running. No noisy generators necessary.

SAVE ON ELECTRICITY

Take advantage of time-of-day rates and save more.

Automatically charge your battery when rates are low and send excess energy back to the grid during peak rate times to maximize long-term savings.

Tesla Certified
Premier Installer

We’re proud to be a Tesla Powerwall Premier Installer. This seal of approval from Tesla recognizes our commitment to quality workmanship and expert knowledge of Powerwall installation.

TESLA POWERWALL

Partnering with Tesla to bring you the best.

  • Seamless Solar Integration Tesla solar batteries integrate seamlessly with your solar system. Any excess energy your panels produce is stored, so you can use solar whenever you choose.
  • Automatic Backup Power The Tesla Powerwall detects outages and restores power automatically. When the sun comes up, your Powerwall will recharge to keep you going indefinitely.
  • Control Where Your Power Goes Tesla’s app lets you monitor and control how your power is used. Strategically choose how your power is used to meet your unique needs during an outage

Get Extra Incentives

More storage means more savings. By pairing batteries with solar,
you’ll make the most of these limited-time incentives.

NYSERDA REBATE

$250 per kWh of storage*

$

3,375

rebate

$

6,250

rebate

$

6,250

rebate

FEDERAL TAX CREDIT

30% Tax Credit

Upto

$4,267

Upto

$6,105

Upto

$9,030

*NYSERDA rebate capped at $6,250 and available to Long Island customers only.
Figures based on solar + storage system for Long Island home. Incentives for battery-only systems or solar + storage in Westchester may vary.

FAQs

Is solar battery backup worth it?
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Yes! By adding a Tesla solar battery backup system to your home, you can potentially save money on your power bill. Since the Tesla Powerwall charges with your solar panel system, having a solar battery backup can help you achieve greater savings.

How long will a solar battery backup last?
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The Tesla Powerwall is warrantied for 10 years with a guarantee that the battery will retain 70% of its capacity by year 10. Battery life is influenced by the number of times it is charged and discharged, which is known as a cycle. Therefore, when used for backup only and not regularly cycling, battery capacity is expected to be stronger than 70%.

What can a solar battery power?
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Solar battery backup systems, like the Tesla Powerwall, can power large appliances for a short period of time, or small appliances for a long period of time. For example, without recharging from solar, one Powerwall can power 20 LED lights for two days or one refrigerator for six days.

How many home batteries do I need?
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Like solar panels, the number of Tesla Powerwall home batteries that you will need will depend on your home’s needs and usage. While one Tesla battery is sufficient to cover your basic energy needs, we generally recommend two or three battery back up systems to provide the best comfort and value.

Can I install a battery without solar panels?
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Yes! While solar and batteries work best together, maximizing efficiency and savings, you can install a battery backup by itself. The installation of a standalone batteries can also qualify for the 30% federal tax credit.

Where is the best location to install a solar battery?
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Similar to a solar inverter, batteries are ideally located near the main electrical service panel. Our team will work with you to determine the best location. Indoor installation is always preferred, however they cannot be located in a living space or on a wall opposite a bedroom. In some cases, they can be installed outdoors, however an enclosure may be required.

Are solar batteries safe?
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Battery systems are designed to operate safely both indoors and outdoors, and do not pose any environmental threat during standard operation. We recommend that you exercise the same precautions that you would take with other electrical utility equipment.

What happens during an outage if I don’t have battery backup with my solar system?
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When the power goes out in your home, the solar panels will stop working and automatically disconnect from the grid to maintain the safety of the utility workers attempting to restore power. Once the power is restored, your system will continue production after a few minutes. If it is important for you to maintain power during a blackout, we recommend adding one or more Tesla Powerwall home batteries to your system.

Is the Tesla Powerwall noisy?
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The battery inverter may make a faint humming noise, but should not be disruptive or even noticeable. Solar batteries are significantly quieter than other solutions, like generators.

How much energy does the Tesla Powerwall provide?
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One Powerwall can provide 13.5 kilowatt hours (kWh) per charge. The Powerwall 2 will discharge 5 kW continuously and the Powerwall 3 will discharge 11 kW until that 13.5 kWh is used.

What is net metering and how does it work?
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When the sun is out, your home’s solar system collects that solar energy, which it then uses to directly power your home. If you don’t have immediate energy needs matching the amount of energy stored, that excess energy can be saved in your Tesla home battery for later use instead of sending it back to the power grid.