The Grid Card
The Grid Card is part of the Green Energy Economy system. It's like a credit card for buying and selling energy. Surplus energy from the solar panels and wind generation systems on my house, goes to the energy grid and shows up as a credit on my energy account. I can use that credit to purchase energy for my car at charging stations, or to travel on any of the mass transit systems, such as the 66 Sun Tram.

More to come...
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