Can you take a real grid to zero?
Start from a country's actual 2025 electricity mix. Move the sliders, watch carbon, cost and feasibility fight each other, and find a mix that passes — no cheap tricks: storage, build limits and real policy push back.
🕹️More games
All games →Griddle
Guess today's country from its live energy mix.
Higher or Lower
Which grid is dirtier right now? Keep the streak alive.
Battle Cards
Country top-trumps against the AI, on today's real stats.
Energy Olympics
Pick a team country. Medals every day it leads a category.
Solar Studio
Click a roof anywhere in Europe — real PVGIS yield and € payback.
🌍Europe's grid, right now
Loading…One bubble per country · size = generation now, colour = carbon intensity. Tap a country to open it in Europe Live.
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About SDA Token
Sustainable Digital Assets (SDA) is a project about financing renewable energy with tokenized, auditable ownership. This site is the free educational side of it: the data and the games are here to make the physics and the economics obvious before anyone talks about money. Nothing here is investment advice.
SDA Token is not affiliated with SDChain or the Sidra Digital Asset token — different projects, similar-looking names. The commercial platform lives at sdafintech.com.