Design with confidence

Your adventure. Your power.

Estimate your daily energy needs and explore a starter off-grid system for your caravan, camper or 4WD. No electrical experience required.

1. Your setup

Choose your battery system and how long you want to operate without charging.

System voltage

Autonomy (days)

Peak sun hours / day

2. What will you power?

Enter each appliance's typical running watts and hours used per day. Starting values are examples only.

3. Sample shopping list

Indicative component categories, not real stock or a verified bill of materials.

Fuse selection, cable sizing, short-circuit protection, terminations, wiring diagrams, cut lengths, waste and installation tools require a separate verified electrical design. No cable or fuse specifications are implied by these estimates.

Your energy snapshot

Updates automatically as you change your inputs.

Daily consumption—Watt-hours per day

Battery estimate—Ah at selected voltage

Solar estimate—Watts of panels

Daily average energy—kWh/day

Planning assumptions: LiFePO₄ battery at 80% usable capacity; solar derating factor 75%; user-entered peak sun hours. Battery estimate covers specified autonomy with no recharge. Estimates exclude inverter idle consumption, charging losses beyond the solar derating, surge loads, shading, temperature effects and site-specific conditions.

Coming next

Detailed DC circuits, cable voltage-drop calculations, fuse and interrupt-rating checks, wiring diagrams, cut lists with waste allowances, and live Exotronic catalogue matching.

Open DC Circuit Planner →

Transfers up to 12 non-zero appliance loads as preliminary DC circuits. Check that each appliance is DC-powered and verify its actual operating current before designing.

Open Visual Wiring Designer →

Exotronic API not connected

VoltPlan prototype • Educational planning only. Have a suitably qualified professional verify system design and installation against applicable standards and manufacturer instructions.