0 of 4 days powered
A little energy adventure
Preparing your town
Morning · Plan your day
Build a brighter day.
Choose equipment, then an open plot.
Your forecast
Outputs are per item, in game energy units.
Plan for each part of the day
Each solar array and wind turbine produces the amount shown in the forecast. The town uses that energy first. A battery automatically saves any surplus, up to 4 units, then supplies energy when generation falls short. Every run starts with an empty battery.
Select a built plot with no equipment selected to remove it. You can replace equipment by choosing a different item first. Plot order does not affect the result.
Your equipment plans and completed days stay in this browser when storage is available.
About this little energy model
These are handcrafted puzzles with invented energy units, equal-length periods, and known forecasts. They illustrate matching supply to demand and saving surplus for later. They do not estimate a real town’s electricity needs or specify real equipment sizes.
Batteries start empty, store up to 4 units each, and have no losses or charging-rate limits in this game. Surplus beyond storage capacity is unused. There is no outside grid, fuel generation, wiring constraint, or cost model. The entire town is shown lit in the evening only when that period’s demand is met; winning requires meeting demand in all three periods.
The town and equipment are AI-generated illustrations. All controls and calculations are part of the webpage. Keyboard: Tab to move, Enter or Space to select. Reduced-motion preferences skip the animated playback. There is no timer or penalty for retries.
Follow the energy
Explore smart grids, solar energy, and the wider energy collection.
Grow something next
Find a home for every herb in Right Plant, Right Place, or explore the game library.