Stop guessing your solar size. Get it engineered — free.
In 30 minutes, a Tech Harena engineer calculates your exact energy needs — your appliances, your usage, your budget — so you buy the system that fits your house, not the one that fits somebody’s sales target.
No payment. No obligation. Just correct answers.
Do you know your number? Most people don’t — until the battery dies at 9pm.
You’ve heard the solar horror stories. Here’s why they happen.
Your neighbour bought “5kVA solar” for ₦3 million. Six months later, the battery is flat by 9pm and the installer’s number is not going through.
It’s everywhere. And here’s the truth nobody tells you: the system didn’t fail — the sizing did. Somebody sold him a sticker, not a specification. Nobody measured his actual load.
Solar is not a gadget you pick off a shelf. It’s an engineering project. And every engineering project starts with one thing: knowing your numbers.
What actually happens in your 30 minutes
Whether you buy from us or not, you leave that call knowing your numbers. Nobody can sell you a sticker again.
Transparent specifications. Complete packages.
Every Tech Harena system is a complete engineering package — not just an inverter and panels. Here’s what full specification looks like:
Not sure which one fits? That’s exactly what the free assessment answers. Don’t guess with millions of naira — let the numbers decide.
Find My Right System — Free AssessmentReal installations, across Lagos and beyond.
We’re engineers first. Sellers second.
“They didn’t just sell me an inverter. They sat down, checked my freezers, my AC, everything — then told me what I actually needed. My generator has not started in 4 months.”
Before you ask
30 minutes now saves you millions later.
Every week, somebody in Lagos pays for a solar system that was never going to work. Don’t join them. Get your numbers first — from engineers who measure before they quote.