Kay Soley: Solar Installer Platform with Savings Simulator

Kay Soley installs photovoltaic systems for homes in Martinique. Their promise is simple: let the sun pay your electricity bill.

I built their website and portal with Next.js on the front end and Node on the back end, centered on a simulator that gives homeowners a savings estimate in about two minutes without asking for their email first.

Make solar savings feel concrete for homeowners

Qualify leads before the sales team calls

Show real installations as proof

Serve a French speaking audience with fast pages

A multi step simulator asks simple questions like home surface and usage, then estimates savings. Visitors get value before sharing contact details.

Before and after sliders show actual roofs, system size (for example 6 kWc with 10 kWh battery), location and the change in monthly bill.

Clear steps explain the process from quote to commissioning, with Simulation and Demander un devis CTAs in the header.

Simulator answers and quote requests are captured on the Node backend so advisors can follow up within 24 hours.

Next.js and React front end with Tailwind styling

Node.js API for simulator logic and lead capture

Interactive before and after comparison slider

Solar guide, grants, FAQ and blog pages

Responsive, fast loading pages for mobile users

Kay Soley now has a modern platform that educates homeowners, proves results with real installations and turns curiosity into qualified quote requests.

🌎 Live website: https://kay-soley.com/