Cesun
Shenzhen Yunying Tianguang Technology Co., Ltd.
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About this app
Say goodbye to complicated solar calculations and endless back-and-forth with contractors. Cesun makes designing a rooftop solar system as easy as ordering takeout. WHAT IT DOES Just enter your roof orientation, size, location, and current electricity bill — Cesun instantly generates a complete solar installation plan, including: Component Breakdown — Detailed panel models, quantities, and matching inverter recommendations Energy Production Forecast — Accurate annual output estimates based on local sunlight data and roof conditions Savings & ROI — Clear projections of electricity bill savings, payback period, and long-term returns Certified Dealer Matching — Automatically connects you with verified, certified installers near your location WHO IT'S FOR Whether you're a homeowner exploring rooftop solar or a sales consultant who needs to produce a proposal fast, Cesun turns a process that used to take days into a task that takes minutes. WHY CESUN Data-Driven: Combines location, sunlight exposure, and energy usage for realistic, tailored plans Easy to Understand: Complex technical specs translated into clear charts and numbers Local Support: Direct connection to certified dealers — from design to installation, all in one place Download Cesun and let the sun take some weight off your electricity bi
What's new
Version 1.0.1 · Sep 17, 2026
Fix bugs related to the history record