Carles Busquets

VSLR

Product Designer

Branding & product design

Solar quotes used to take 5 days. I designed a tool that gives a real one in 4 minutes.

The challenge

VSLR sells residential solar in Spain. The industry standard was: homeowner fills a form, a sales rep calls within 48h, books a home visit, and a quote arrives 3–5 days later.

Two of every three leads went cold before the quote arrived. The product wasn’t slow — the path to feeling confident about it was. Solar is an emotional purchase wrapped in an engineering spec.

Numbers

4 minReal quote, no callback
+135%Quote-to-contract conversion
−71%Lead-to-quote time
€2.1MPipeline through self-serve in year one

How I worked

  1. 01Started from satellite imagery

    Google Sunroof data plus VSLR’s panel database. The homeowner pinned their roof; the tool drew the layout automatically. No measurements asked of a non-expert.

    VSLR — Started from satellite imagery
  2. 02Hid the engineering, showed the savings

    The output focused on monthly bill projection, payback period, CO₂ saved. The engineering report was a download for whoever wanted to read 14 pages.

    VSLR — Hid the engineering, showed the savings
  3. 03A brand built on real installations

    Shot 12 real homes in Catalonia for the identity system. No stock photos of happy families on tablets. Real roofs, real installers, real numbers.

    VSLR — A brand built on real installations
  4. 043 screens, not a multi-page form

    Address → roof confirmation → quote. Three screens. Save and email at any step. 40% of quotes were finalised days later, on a different device, over coffee.

    VSLR — 3 screens, not a multi-page form
  5. 05Rolled out in two regions first

    Catalonia and Andalusia. Different roof styles, different sun, different installer networks. The tool needed both before going national.

    VSLR — Rolled out in two regions first
  6. 06Trained sales on what changed

    A new workflow meant reps lost their cold-call routine. Spent two afternoons with the sales team rewriting their pitch around the quote tool. Adoption stopped being a problem.

    VSLR — Trained sales on what changed

What changed

  • Lead-to-quote time: 3 days → 4 minutes.
  • Quote-to-contract conversion rose from 8% to 19%.
  • Self-serve quotes drove €2.1M in pipeline in year one.
  • Sales team time-per-lead dropped 60% — they only called pre-qualified prospects.

One lesson

Confidence is the product. The quote is just the proof.