Battery Storage Calculator

Calculate your back-up options using our new battery storage calculator tool.

In the event of a power outage, the amount of time a battery can power your home's essentials depends on two measurements. First, it depends on the needed kilowatts (kW)—the power required for a device to work. Second, it depends on the battery's capacity in kilowatt-hours (kWh)—the energy available to power your devices. Find out which battery is best for your home's needs. This calculator will help you learn how long a fully-charged home battery system will last in an outage, and how many you might need.

STEP 1

Select Devices

from around your home that you’d want to use during an outage

STEP 2

View Your Results

and compare different battery products and specifications

WANT TO LEARN MORE ABOUT HOME BATTERIES?

As we continue to lead Canada in reducing carbon emissions, we need innovative solutions to add more renewables and new energy solutions to our grid.

Visit our Smart Grid Nova Scotia page

Home Device Selection

Select the home devices below that you’d like to use during an outage. After you make your selections, we’ll then review different home battery options and how they can meet your specific needs.

Heating/Cooling/Power

Cooking in the Kitchen

Lounging in the Living Room/Den

Working in the Office/Bedroom

Everything Else

Your Customized Results are Below

Here are the two battery storage options available through the Smart Grid Nova Scotia pilot. You can compare both options depending on your home’s essential needs. You can also return to the previous page to adjust your home’s essentials and compare the difference in estimated backup. To apply for the pilot program, please complete our Expression of Interest Form in the “Apply now” section below.

Tesla Powerwall

Estimated duration of Backup:

Tesla Powerwall battery

Tesla Powerwall

Estimated duration of Backup:

# of Batteries installed: 1

The Tesla Powerwall solution comes with a single battery, the backup gateway and all ancillary items required to create a connected partial home backup solution for critical loads.

Price:

$3,000 or $25/month (for 10 years at 0%)

Power:

5kW

Available Energy:

13.5kWh

Battery Warranty:

10-year warranty (80% capacity remaining) or 37.8MWh of aggregate throughput

Battery Type:

Lithium Ion (NMC)

Dimensions

(W x H x D):

Note: clearances required exceed hardware dimensions, may also require critical loads sub panel (size varies)

Powerwall Backup Gateway: 378 x 740 x 129 mm
Powerwall Battery: 753 x 1150 x 147 mm

Other Features

• User-friendly customer application including web-based and mobile portals.

• Scalable – can connect up to 10 Powerwalls using the same connection to the home

Sunverge Infinity

Estimated duration of Backup:

Sunverge Infinity 2 battery

Sunverge Infinity

Estimated duration of Backup:

# of Batteries installed: 1

The Sunverge Infinity solution comes with two LG batteries, an LG inverter, one Sunverge gateway, and all other ancillary items required to create a connected partial home backup solution for critical loads.

Price:

$4,200 or $35/month (for 10 years at 0%)

Power:

5kW

Available Energy:

18.6kWh

Battery Warranty:

10-year warranty (60% capacity remaining) or 22.4MWh aggregate throughput

Battery Type:

Lithium Ion (NMC)

Dimensions

(W x H x D):

Note: clearances required exceed hardware dimensions, may also require critical loads sub panel (size varies)

Sunverge Infinity Controller: 180 x 300 x 76 mm
LG ESS: 425 X 590 X 150 mm
Batteries (each): 744 x 907 x 206 mm

Other Features

• User-friendly customer application including web-based and mobile portals.

• DC coupling for solar PV

Tip: Touch battery name to expand full result details

APPLY NOW

Ready to add a reliable back-up energy source to your home, and help us transition to more renewable energy? Complete our application to see if you’re eligible to participate.

Apply Now

Battery Backup FAQs


Assumptions

 

Heating/Cooling/Power

Heat Pump (Ductless mini-split single head) *960W - During ideal outdoor operating temperatures (-5 to -10 degrees) a heat pump will run 60-70% of the time to keep a properly sized room at around 20 degrees 

Water Heater (Electric Hot Water Heat) *4000W for 4 hrs per day

Ceiling Fan 120W for 24 hrs per day

Furnace Fan Blower* 800W for 24 hrs per day

Well Pump * (1/3 horsepower) / 750W for 10% of day

Cooking in the Kitchen

Electric Range (1 large burner) 1500W for 20 min per day

Coffee Machine 1000W for 10 min per day

Freezer (Chest 15 cu.ft.) 300W for 8 hrs per day

Fridge (20 cu.ft.) 150W for 8 hrs per day

Microwave 1000W for 10 min per day

Toaster 1200W for 5 min per day

Lounging in the Living Room/Den

TV – LCD 150W for 6 hrs per day

Video Game Console 150W for 4 hrs per day

Cable Box 30W for 24 hrs per day

Working in the Office/Bedroom

Laptop 75W for 12 hrs per day

Modem/Router 24W for 24 hrs per day

Clock Radio 7W for 24 hrs per day

Everything else

LED Lights (one 100W equivalent bulb) 23W for 6 hrs per day

Charge your phone 11.2Wh - two iPhone XR full charges, twice per day

Top up your EV * - Charge EV with 7.6kWh for ~50km of range

 

* denotes a 240V appliance. Not all battery systems may power 240V appliances or any combination thereof. Your device selections will be reviewed with you by a qualified electrician before installation.

How do we calculate energy usage?

A kilowatt-hour (kWh) is a composite unit of energy equal to one kilowatt (kW) of power sustained for one hour. The energy used by your devices is calculated by multiplying the assumed power consumption in kilowatts by the assumed operating time, per day, in hours. This determines how long one or multiple devices can operate.  

Power vs. Storage

This calculator does not calculate the total power (kW) required to operate all the devices selected at once and is only indicative of the potential storage time (hours) available to support your device selections based on our assumptions of daily energy use (kWh). Any 240V appliance or combination thereof (like a heat pump, water heater, furnace fan, well pump, electric range, or EV charger) may exceed the power output rating of the battery storage system. Your device selections will be reviewed with you by a qualified electrician before installation.