OnSun is described as 'Solar forecast app that tells you exactly when to run appliances to maximise your free solar energy and cut electricity bills' and is an app. There are five alternatives to OnSun for Web-based, SaaS and Windows. The best OnSun alternative is PVsyst. It's not free, so if you're looking for a free alternative, you could try PVSketch. Other great apps like OnSun are Solarius PV, Quasar Energy and OpusFlow.
Solar simulation suite for designing grid-tied, standalone, or pumping photovoltaic systems with comprehensive energy yield analysis, 3D shading modeling, advanced system sizing, bifacial and tracker integration, batch simulations, and detailed economic reporting.
Switzerland
BIM software for solar projects providing PV system design, 3D modeling, climate-based analysis, assisted irradiation and shading design, automatic wiring diagrams, data-driven financial planning, component libraries and rapid photo simulation with diagnostics.
Italy
EU
AI-powered engineering reports and energy market analytics. Cable sizing, solar PV+battery design, and weekly/monthly energy market intelligence for EU professionals. No subscription — pay per report.
An intuitive web app built for salespersons to easily create multiple versions for array layouts and energy production models.
OpusFlow is an all-in-one ERP system for the sustainable mechanic. From solar panels and heat pumps to charging stations, OpusFlow software ensures streamlined business operations.
