WattWiseStart pack

Example battery proposal pack

A realistic installer-facing example for an NSW retrofit lead. Real packs include battery options, calculation assumptions, installer notes, customer follow-up copy, and clear next steps.

Job context

Customer reference: Smith job

Location: Castle Hill NSW 2154

Existing solar: 6.6 kW system, single-phase inverter

Goal: lower bills, use more solar, future-proofing

Bill summary: average daily usage supplied as 19 kWh/day

Installer pricing: $11,800 placeholder for balanced system

Battery scenarios
Nominal sizeAnnual savings rangePayback rangeFit
6.5 kWh$410-$76011-21 yearsEntry retrofit for modest evening load
10 kWh$630-$1,15010-18 yearsBalanced option for most family homes
13.5 kWh$780-$1,42010-19 yearsLarger option for backup or future EV load
Assumptions and boundaries
Savings are shown as ranges based on submitted usage, current tariff assumptions, solar self-consumption, battery usable capacity, and installed pricing. This is installer proposal support, not a guarantee of savings, network approval, or licensed electrical assessment.
Sales follow-up copy
Email and SMS copy explain the recommended option, why the payback range varies, what to confirm next, and how price should be compared against usable capacity and backup goals.
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