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Geospatial / 2019

Autarco Helios

Autarco needed dealers and customers to size a solar system without waiting on an expert. Helios, a web-based design tool, lets them draw their roof on a satellite map and see straight away how many panels fit and how much energy the system would generate. Roy built it, working with Autarco's physics experts on the yield calculations.

What changed

Turned a slow, expert-led solar calculation into something a dealer or customer does themselves in a few minutes, in the browser.

Minutes
From roof to panel layout and yield estimate, without an expert in the loop
Self-service
Dealers and customers design their own system
In-browser
Results update instantly as the design changes

What was at stake

Before a solar system can be quoted, someone has to work out how many panels fit on the roof and how much energy they would produce. At Autarco that was a slow, manual task that needed an expert, which slowed down every dealer conversation and every customer enquiry.

Autarco wanted to take that step out of the queue: let dealers and customers design a system themselves by drawing their roof on a satellite map, and have the tool work out the layout and the yield.

What was built

Roy built Helios. A user traces the outline of their roof on a satellite map; the tool fills the available area with panels, accounts for the constraints that matter, and estimates the energy the layout would generate. Here it is in action:

Numbers a customer can rely on

A tool like this looks simple and is not. The yield figure is what a quote is based on, so it has to reflect reality rather than just roof area. The geospatial calculations were built with Turf.js in close cooperation with Autarco's physics experts, and the drawing tools were built on top of a third-party map provider.

All of it runs in the browser. The calculations were optimised so results come back instantly as someone adjusts their roof outline, which keeps the tool usable in a live conversation with a customer.

What changed

A time-consuming, expert-led calculation became something a dealer or customer could do themselves in a few minutes, directly in the browser.

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