HoneyWatt · Solar Design Studio

Learn free. Design free. Pay when the project gets serious.

Professional solar design in the browser — layout on real maps, stringing, protection sizing, yield, and a priced proposal. No licence to buy before you know it fits how you work.

Start 30-Day Trial

No credit card. No sales call. Your first design takes minutes.

The path from curious to delivered

Learn — free

Draw a roof or a field, see panels, yield and economics appear. Learning the tool costs nothing, forever.

Try — 30 days full

Every professional feature unlocked: electrical design, 3D, engineering checks, proposals.

Assess — free

Preliminary designs and feasibility stay free after the trial — screen sites without spending a cent.

Deliver — from €12

When a project gets serious, pay per project for the detailed, deliverable design.

What's inside

Layout

Rooftop, ground & façade
Real map + CAD drafting view
Zones from surveyor coordinates

Electrical

Auto-stringing & MPPT matching
Cable routing & sizing
Protection & single-line diagram

Engineering

Standards-based design checks
Yield with P50/P90 exceedance
3D with real terrain & shading geometry

Commercial

BoQ from the design itself
Priced proposal in your branding
Battery & backup sizing

Works as an installable app on Windows and Mac — design studio in its own window, straight from the browser.

Detailed design — priced per project, not per seat

≤ 100 kWp

€12 /project

≤ 1 MWp

€24 /project

≤ 5 MWp

€49 /project

≤ 20 MWp

€99 /project

Above 20 MWp: custom. Every project includes 5 revisions. Project packs save 10-25% for design businesses — see the pricing page.

Why per project?

Seat licences punish small teams in slow months. HoneyWatt charges when a design earns money — a serious 1 MWp project carries €24 of design cost, and a quiet month carries none.

Your first design is minutes away.

Open the studio, draw a roof, watch the design assemble itself.