Free · Mobile-first · Malaysia-specific
How much can you save
with rooftop solar?
Find out in under 90 seconds. We use real TNB 2025 tariffs, your actual roof area, and your monthly bill to give you a personalised Solar Grade.
No sign-up required · Takes 90 seconds
Not another boring solar form
NexVolt is built like a game — fast, visual, and satisfying. Here's what makes it different.
90-Second Assessment
Bill slider → roof map → Solar Grade. No boring forms.
Exact TNB Tariff Engine
We reverse-engineer your RM bill into kWh using 2025 block rates — to the sen.
Satellite Roof Mapping
Draw your roof on Google Maps. We calculate real m² — no self-reported guesses.
Shareable Playcard
Get a grade A–F card you can post to WhatsApp or Instagram. Sharing is free.
Neighbourhood Leaderboard
See how many homes in your area are solar-ready. PDPA-safe, no individual names.
Zero Pressure
Your data is never sold. A Solarvest offer only appears when you ask for it.
How it works
Tell us about your home
Roof type, storeys, meter phase, and your monthly TNB bill.
Draw your roof
Use our satellite map tool to outline your actual roof area in seconds.
Get your Solar Grade
We calculate your grade (A–F), annual savings, and best system size.