Both options keep the current OTP, payment, email, and account-access flow. The difference is how much technical detail feeds the recommendation before the report is generated.
Use location, monthly bill or kWh use, EV plans, roof direction, and shading to generate a guided solar estimate without appliance entry.
Begin with the same Stage 0 site profile, then continue into detailed appliance sizing, verification, preview, and the final advisory report.
Choose the lightest workflow that still matches the depth of recommendation you need.
Stage 0 only: site profile, energy usage, and roof context.
Stage 0 plus appliances, engineering assumptions, and the full guided flow.
Payment confirmation still unlocks the PDF by email and keeps it available in the customer account.
Best when you need a fast first-pass estimate from a bill and site profile.
Best when the appliance schedule, surge load, and backup demand need to be explicit.
Use the chat assistant or contact support before starting the calculator.
