Goldsure · Battery ROI Calculator

Customer Name

Step 1Current Energy Usage

Postcode

Used for report ID only

Quarterly Grid Use

kWh from electricity bill

kWh

Usage Rate

$/kWh from bill

$/kWh

Daily Supply Charge

Daily connection fee

$/day

Tariff Type

Affects battery value estimate

Peak Rate

Peak $/kWh (ToU)

$/kWh

Where to Find These Numbers

Usage rate on electricity bill Quarterly kWh total on bill Supply/service/daily charge Check bill for flat vs ToU tariff

Step 2Solar Details

Does the customer currently have solar?

No solar Has solar system

Is the customer planning to add solar?

Not adding solar Adding new solar

State / Location

Affects solar generation estimate (used when solar is present)

Step 3Battery & System Cost

Battery Capacity

Size of battery in kWh

kWh

Total System Cost

Battery + solar (if applicable)

Battery Degradation

Performance loss per year

Calculation Assumptions

1 full cycle per day 85% round-trip efficiency 10-year payback horizon FiT opportunity cost included Degradation applied year-on-year Solar: state-adjusted generation

Step 4ROI Results

Complete steps 1–3 to see results

Fill in the required fields above to calculate ROI.

ROI Summary

System Cost $–

Yr 1 Annual Savings $–

Battery Savings $–

Solar Savings $–

FiT Opp. Cost $–

10-Yr Total Savings $–

Payback Period –

Annual ROI –%

Battery savings = Energy offset × usage rate
Energy offset = min(annual use, battery output)
FiT cost = Energy diverted from export × FiT rate
Solar savings = Solar gen × usage rate (net of FiT)
Degradation applied compounding per year
10-yr total uses compounding degradation model

Where to Find These Numbers

Calculation Assumptions

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