See what solar could do for your electricity bill.

Use a few practical inputs to get an early estimate for system size, generation, savings and payback.

Quick estimate

Start with your monthly electricity bill.

This calculator is a planning guide, not a final quotation. A site survey is needed to confirm roof space, shade, structure, product selection and the final system design.

Your estimate

A practical starting point

Enter your details and calculate your estimate.

--Recommended system

--Estimated monthly generation

--Estimated monthly saving

--Estimated payback

Important: Actual output depends on sunlight, shade, roof direction, system quality and local electricity rules.

Before you decide

What a final solar recommendation checks.

Roof and shade

Usable area, direction, tilt, structure and shade throughout the day.

Usage pattern

Your bill, daytime use, essential loads and future energy needs.

System choice

On-grid, hybrid or backup-ready equipment matched to the property.

Calculator FAQs

Understand the estimate before you act.

Is this a final quotation?

No. It is an early planning estimate. A site survey and detailed system design are needed for a final proposal.

What size system might I need?

The calculator uses your monthly bill and unit rate to estimate energy demand, then checks it against available roof area.

Want a site-specific solar estimate?

Share your bill and roof details with the RJ Enterprises team.

Request a consultation