Power Grid deck

This expansion must be played with Power Grid and is compatible with the previous map expansions. The expansion is a new set of power plant cards which may be used in several ways:  1) use the new deck instead of the original, 2) use both decks, but just one of each number, chosen randomly, 3) use the original deck, adding the larger numbered plants from the new deck, 4) customize your own power plant deck using the two decks.