ASSET by FACTOR C ENERGY | Battery Sizing Module

Back up what matters. Right-sized for your goals.

Build a battery plan around your home, the appliances you care about, and the outage duration you want to cover. See the energy and power requirements behind the recommendation before choosing equipment.

Start My Battery PlanExplore the planner ↓
  • Appliance-aware
  • Outage-focused
  • Transparent assumptions
A real home staying safely powered at dusk with two professionally installed backup batteries visible in the garage
Home backup planningSize for the way your home actually runs
Protect firstFridge · lights · internet
Plan durationHours to multi-day
Verify demandEnergy · steady · surge
Home Energy Resilience

Turn your energy into an ASSET.

A Guided Five-Step Workflow

From resilience goal to battery plan.

Every step adds useful context to customize your backup needs.

  1. 01

    Goal

    Choose the backup outcome, outage duration, solar assumption, and planning preference that matter to you.

  2. 02

    Energy

    Enter a monthly bill, add monthly usage, or import utility data, then describe your home energy profile.

  3. 03

    Backup

    Choose essential and high-demand loads to include in your outage plan.

  4. 04

    System

    Add home-equipment and motor-start details that may affect battery and inverter requirements.

  5. 05

    Confirm

    Review your inputs, calculate the plan, and compare eligible battery configurations.

Flexible Battery Sizing

Two paths to your backup strategy. Zero guesswork.

Whether you want to maintain full power across your entire home or target specific appliances, ASSET lets you choose your strategy, and easily future-proof your plan by including upcoming additions, like EV chargers.

Complete Coverage

Whole Home

How it works

Models your home's entire electricity needs to keep all appliances and systems up and running.

Best for

Homeowners wanting seamless, uninterrupted power for every room and major appliance.

Targeted Protection

Selected Appliances and Systems

How it works

Builds a custom profile circuit by circuit, recording specific appliances to calculate baseline storage needs.

Best for

Homeowners looking to prioritize essentials, maximize battery runtime, or optimize project budget.

Metrics That Matter

Know your energy and power requirements before choosing equipment.

ASSET separates energy capacity from continuous and starting power. It shows the assumptions, warnings, included loads, utility-rate context, and scenario differences that sit behind the plan.

Plan short, overnight, full-day, multi-day, or custom outage durations up to seven days.

Usable energy target

The storage capacity needed after reserve and efficiency assumptions.

Continuous power

The steady power requirement for the loads in your backup plan.

Starting power

Motor-start and surge context for pumps, refrigeration, and other equipment.

Scenario comparison

Expected and conservative requirements with visible planning assumptions.

Independent battery intelligence.

Build a home battery plan around your resilience goals.

Start My Battery Plan