Solar surplus is income - not a leftover.
Your system produces the most in the middle of the day, when the house uses the least. Without control, the surplus sells at whatever the price happens to be - usually the day's lowest.
Every kWh you use yourself replaces power bought at full price - spot plus grid fees. This is often the highest value your surplus can get.
The rest sells at spot price. Wattoshi sells in the best hours and collects the value in the energy bank - ready to be saved in Bitcoin.
See how the surplus becomes value.
The panel plays out a sunny day: production passes consumption, the surplus is exported and tracked hour by hour - and the value lands in the energy bank.
How to get more out of your sun.
The first step is open to anyone with a system today. The next step lifts your average price per kilowatt hour.
Connect your system
Wattoshi follows production, consumption and surplus in real time - you always know what the surplus is worth.
Let Wattoshi maximise the income
The surplus is sold in the highest-priced hours, and the income collects in the energy bank instead of disappearing into the power bill. Convert whenever you like - from kilowatt hours to kroner to sats.
Next step: give the surplus a price floor
For advanced users: a miner always buys the surplus - export when spot pays best, mining when it doesn't. Your average price per kWh goes up.
What you need
No system yet? Check your roof in the solar map.
A HAN meter or inverter data showing production and consumption.
The account that tracks the surplus and manages the value.
Missing something? We deliver it.
Solar systems, done right.
Beyond the dashboard we deliver the physical part: the system that produces - and, when you're ready for the next step, the miner that lifts your average price.
A tailored recommendation
Sized for your roof, your consumption and your strategy - not the seller's inventory.
Miner - your price floor
We deliver and connect the load that always buys your surplus - like a battery, at a fraction of the price.
Installed and connected to Wattoshi
Delivered ready to run - with tracking and control from day one.
Check your roof's potential
The solar map finds your roof surfaces with live building data and Norwegian prices - pick a roof side and get panels, production and seasonal profile in one click.
Open the solar map →