New: the federal battery rebate pays the full rate on the first 14 kWh, the exact size of the ElektroBank 14, and steps down over time.

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For New Ev Owners

Your new EV just
became your
biggest appliance

Each EV adds about 40%1 to a typical home’s electricity use. 
This is about the same level of consumption as a resistive solar water heater for three people2 , or a medium-sized pool, and can significantly increase your electricity bill if unmanaged.

Most chargers let you schedule them or only charge on surplus PV, which helps, but they are blind to cloudy days and don’t work with lower cost wholesale plans. They also fight with smart water heaters and solar-batteries for surplus PV generation.

Empower’s Home Energy Management System (HEMS)
compatible solar-battery solution sequences them so each runs on the lowest-cost power source.

  • Co-optimises car charging with your home, battery and tariff
  • Supports lowest cost wholesale electricity tariffs
  • Forecasts 48 hours ahead and optimises across all your devices
  • Works with compatible Level 2 chargers, no extra setup
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*A resistive (electric storage) water heater for a three-person household (120 L/day) uses ~2,900 kWh/yr, derived from Sustainability Victoria’s water-heating running-costs comparison (mid-2025 prices).*

Why now

Your EV savings depend on your usage, tariff, and integration with your other devices
The indicative estimates below compare your potential EV savings vs. petrol with a typical battery, or with Empower’s HEMS integrated ElektroBank 14 solar-battery solution.
  • Petrol Vehicle
$2,400/yr3
  • EV with a typical 14 kWh solar battery
$1,300/yr4
  • EV with an ElektroBank 14 solar battery
$300/yr5

This is illustrative. Your actual savings will depend on your specific, solar and tariff, check it below.

  1. An EV driven 15,000 km/yr uses ~2,500 kWh/yr (~2,000 kWh per 12,000 km), roughly 40% of the 4,000–8,000 kWh a typical mainland Australian home uses each year. Source: Electric Vehicle Council.
  2. A resistive (electric storage) water heater for a three-person household (120 L/day) uses ~2,900 kWh/yr, derived from Sustainability Victoria’s water-heating running-costs comparison (mid-2025 prices).
  3. Petrol: 15,000 km/yr at 10 L/100km (conservative vs. the ABS passenger-vehicle average of 11.1 L/100km) and $1.57/L, the Sydney average unleaded price in June 2026 (NRMA Weekly Fuel Report).
  4. Typical EV on a ToU tariff: ~2,500 kWh/yr of charging (see 1), mostly evening and overnight on the NSW default market offer ToU tariff (AER Default Market Offer 2026–27), with surplus PV of ~10 kWh/day and a resistive 315-litre water heater on a controlled-load tariff. Empower modelling.
  5. EV on Empower: the same usage, ~10 kWh/day average surplus and 315-litre resistive water heater, on a wholesale tariff with EmpowerIQ scheduling charging into surplus PV and the lowest-price periods. Empower modelling.

The opportunity, and how you can capture it

The opportunity

Most people plug in when they get home, exactly when ToU and wholesale prices are highest. Without coordination, your EV, hot water and aircon all draw power at the worst possible time.

Why existing EV charging modes aren't enough

Typical "charge during off-peak prices" schedules miss PV surplus, and "charge during surplus" modes fight with the solar battery and water heater for it, and can't charge during the lowest-cost periods or when it is cloudy.

How Empower solves it

EmpowerIQ forecasts your solar, usage and prices every 5 minutes, 48 hours ahead, then schedules your car, battery and hot water together for the lowest possible cost, and re-plans instantly if conditions change.

Easily Calculate your expected Ev Savings

See what Empower’s solar-battery solution could save you

The calculator can show expected savings with and without an EV, across both ToU and wholesale electricity plans.
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no-obligation consultation

Contact us to get a firm quote and to check your eligibility for government incentives

Tell us a little about your home and EV. We’ll enter your specific details, validate the savings estimate, and generate a firm installation price, with and without financing, so you can make a decision with confidence.

  • Local support, you always reach a real person, never an overseas call centre
  • No pushy sales, we educate, you decide when ready
I want to validate my savings and get a firm price

Your calculator inputs will be attached to your enquiry, so your follow-up is tailored to your situation.