The two maps included in Power Grid: Québec & Baden-Württemberg were previously released in two different Power Grid base games: Québec is part of Mégawatts, the French edition of the game released by Filosofia, while Baden-Württemberg was included in Funkenschlag: EnBW, a German edition of the game from EnBW.
The Canadian province Québec places great emphasis on energy production via ecological hydro power plants. Once an ecological power plant has been added to the power plant market, it remains until purchased by a player or removed when the number on it is lower than the number of cities power by any player. The two cities of Montreal and Québec City offer several cheap connections, making this map challenging with several layers of choices for building the best networks.
In Baden-Württemberg, the clocks move differently: The main modification focuses on the order of phases of a game round. First, you buy power plants, then rearrange the player order. Furthermore, as the province is small, several transregional locations may be connected only starting in »step 2«.