Start from monthly bill, kWh, or appliance estimates.
Size faster. Quote smarter. Work even without internet.
ADWORKS Offline Solar Proposal Calculator is built for solar installers and sales professionals who want a fast, practical desktop workflow for basic sizing, costing, and proposal preparation.
Assessment → Recommendation → Proposal
See how fast a basic solar recommendation can be.
Choose your market and calculate from either a monthly electric bill or actual monthly energy use. The demo applies editable local rates and practical solar assumptions.
- Select country, currency, and bill or kWh input
- Choose backup preference
- See estimated PV, inverter, battery, and energy flow
Demo results are estimates only and are not a final engineering design.
Quick Solar Estimator
For actual installation, site assessment, load validation, roof conditions, equipment limits, and electrical design must still be checked.
A practical workflow for solar sales and proposal preparation.
Prepare suggested inverter, battery, PV, and system size.
Adjust equipment and service pricing based on your market.
Move from assessment to customer-ready proposal faster.
Continue working even when internet is unavailable.
Designed for solar installers, sales teams, and entrepreneurs.
Choose the level that matches your workflow.
Essential offline calculator
Best for individual installers who need fast and reliable solar estimates.
- Monthly bill and load assessment
- Solar sizing and recommendations
- Basic customer quotations
- Save, load, print and PDF-ready output
- Offline desktop workflow
Professional installer workflow
Best for active installers and small teams handling regular client projects.
- Everything included in Starter
- Business and Technician Suite
- Detailed BOM and project costing
- ROI and estimated savings tools
- Installation and net-metering workflow
Full offline business suite
Best for growing contractors, engineering teams and multi-user operations.
- Everything included in Starter and Pro
- Full Contractor and Engineering Suite
- Finance and project operating tools
- Advanced project and client workflow
- Highest device and authorized-user allowance
More than a calculator—your complete offline solar business workspace.
Premium combines technical calculations, client-ready proposals, project costing and business operations in one package. It is designed for teams that want fewer disconnected spreadsheets and more control from assessment to project delivery.
Use ADWORKS even when you are on-site or working without stable internet.
Choose Starter, Pro, or Premium above to continue to the secure ADWORKS checkout.