The weather app for your solar system.

Know your solar production days ahead – at a glance, like checking the weather.

Get your forecast Free plan available. No credit card required.
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Forecast

Know today what happens tomorrow

Accurate forecasts for up to 7 days. Plan your energy use before the sun rises.

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Weather and solar in one view

See how clouds, rain, and snow affect your production – hour by hour.

Works worldwide

Enter any location and get forecasts immediately. No hardware setup required.

"I've tried many solutions [...] – but nothing was as accurate as pvnode."

GitHub User

"I use the pvnode API with Home Assistant. The precision is impressive – I can keep my battery SOC in the optimal range much longer."

Dev

Developer

Home Assistant User

"Big kudos to pvnode! I've tried a few forecasts, but what these guys deliver is more than top notch!"

GitHub User

How it works

1

Create your account

Sign up in seconds – no credit card required.

2

Add your system

Enter your location and basic system details.

3

Check your forecast

See your expected production for the coming days.

Not just another forecast

Most solar forecasts for homeowners are rough estimates. The really accurate models? Reserved for large solar parks at premium prices.

Over 85% of all solar systems in Germany are small rooftop installations under 20 kW – yet most forecast providers don't serve them. Wanana brings professional-grade forecasting to every system, no matter the size. You just won't notice the complexity – because we designed it to stay out of your way.

Simple pricing for precision data

Monthly Yearly Save 25%

Free

0€ / month

For getting started

  • 1 Site
  • Forecast for today & tomorrow
  • 4 forecast updates per day
  • 1 Solar array
Start for free
🚀 Launch Sale

Plus

2,99€ / month
5,99€/mo Save 50%

Billed as 35,88€ / year

  • 3 Sites
  • Forecast for up to 7 days
  • 16 forecast updates per day*
  • 6 Solar arrays

*Not available at all locations worldwide

Get Plus

Prices include VAT. Cancel anytime.

Two people. One mission.

Wanana is Hawaiian for forecast.

We're Achim and Darwin – the entire team behind Wanana. Together we bring over 20 years of experience in solar energy research and performance modeling.

We built Wanana because precise solar forecasts were locked behind enterprise APIs and enterprise pricing. We wanted to change that.

Ready to plan with the sun?

Start for free and see your forecast in minutes.