Rooftop solar
Free solar business tools
Estimate rooftop solar savings and payback, prepare project costs and create a customer-ready solar quotation.
Choose a tool
Operations
Solar savings calculator
Estimate annual electricity value and simple payback using your own generation and tariff assumptions.
Open toolOperations
Rooftop solar quotation calculator
Build a preliminary solar price from system size, equipment, installation and margin.
Open toolMoney & business
Project-cost estimator
Combine labour, materials, outside services and a contingency allowance.
Open toolDocuments
Quotation maker
Offer itemised goods or services, prices, validity and terms before a customer accepts.
Open toolUse the collection well
Start with the destination requirement
Solar estimates depend on tariff, usable generation, system cost, degradation and site conditions. State assumptions clearly and avoid presenting a planning estimate as a guaranteed bill saving or engineering design.
- Keep the original file or source figures.
- Check every generated result before using it.
- Follow the current official or contractual requirement.
Practical guides
Learn the workflow, not just the button
How to write a service quotation your customer can check
Build an itemised quotation, make the scope clear and check the document before sharing it with a customer.
Profit margin vs markup: why the same percentage gives different prices
Calculate margin and markup from a $75 cost, then check what a discount does to gross profit.
Before a solar quotation: separate site facts from savings assumptions
Organise a rooftop enquiry, record the assumptions behind a savings estimate and prepare a quotation for review.