What is Radiaris
Radiaris is a web tool for designing and simulating self-consumption PV installations. It is designed for installers and SMEs: you go from the client's roof to a technical report and a commercial offer in minutes, with a calculation engine based on the same physical models used by the industry's reference programs.
What it does
- It simulates production hour by hour over a typical year of 8,760 hours: irradiance on the module plane, optical losses, temperature, shading, and the electrical behaviour of the module and the inverter.
- It matches the client's production and consumption to calculate self-consumption, export, grid import and, if there is a battery, its charging and discharging.
- It assesses the investment with CAPEX, OPEX, degradation, energy inflation and financing: annual savings, NPV, IRR, payback and LCOE.
- It sizes for you (automatic mode): it chooses roof planes, number of modules, strings and batteries, and checks that everything meets the electrical limits of the inverter.
- It delivers documents: a technical PDF report (about 23 pages), a short commercial version and an offer with your line items, VAT and subsidies.
Who it is for
For anyone who designs residential, commercial and small industrial self-consumption installations and needs results they can defend in front of the client. If you need to simulate large plants with trackers, solar pumping or concentrating systems, see Scope and limits.
How the documentation is organised
| You want to… | Go to… |
|---|---|
| Start right away | Getting started and First project in 10 minutes |
| Know what each step of the application does | Sections Project setup, Site, Roof, Consumption, Tariff, Equipment, Design and Economics |
| Understand how it calculates | Physical model |
| Interpret and deliver results | Results and reports |
| Solve a specific question | Frequently asked questions and the search box on this page |
Results are estimates
Radiaris calculates with a typical weather year and validated models, but the real production of a specific year can be higher or lower. That is why the report includes the uncertainty (P50, P90 and P99). See Validation and known limits.