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Your articles, your roles
An article carries a role — module, inverter, battery, wallbox — with the attributes the planner calculates with. If a required value is missing, the result is invalid, never silently zero.
PV planner
Lay out the roof, check the yield — the quote is done.
Drag roof areas on the aerial image, place modules, check strings, calculate shading and annual yield. Every planning figure writes the parts list into the quote: modules, inverters, mounting system from your catalogue, cables and hours by your rules. If the roof changes, an amendment with the difference lines follows — not a new quote.
- Aerial & map
- Strings with MPPT check
- Shading per module
- Yield, autarky, payback
- Amendment instead of new quote
Shading & 3D
The same house the shading is calculated with.
Every roof area as a plane with eaves height and pitch, every obstacle with height, the modules on top. The sun runs over date and time; modules colour by shading loss. The server calculates, the browser displays — module count, kWp, strings and yield come from the same answer that writes the parts list.
Yield
Yield, self-consumption, autarky, payback — at a glance.
Consumption profile, battery, wallbox and heat pump in — annual yield, self-consumption, grid purchase, feed-in, savings and payback out. The simulation travels with the quote as long as the inputs match; if the roof changes, it is flagged stale instead of printing a wrong number.
To the quote
The parts list is already in the quote.
31 modules, 1 inverter, mounting system with clamps and rails, solar cable, installation hours — from the planning figures, from your catalogue, at your prices. The mounting system is your own kit with the planner inputs as formula names; cables and hours are standard positions of your document template with a quantity formula. None of it is hard-wired into the planner.
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Amendment instead of new quote
The plan follows the document: draft alive, issued frozen, accepted contract. Changes after that are an amendment with difference lines.
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"Fill the roof with 445s"
Bob changes the plan through the same interface as the editor — and you see the result before it goes into the quote.
Frequently asked
What data does the planner need?
An address — the aerial image comes from the official state services or OpenStreetMap — and your articles with role attributes. On request we set up a demo with modules, inverters and a mounting system for you.
Does the browser or the server calculate?
The server. The browser draws projection and handles and sends the layout; module count, kWp, strings, shading and yield come back — and the same answer writes the parts list. So the number in the quote is always the number on screen.
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