Power Grid is the updated release of the Friedemann Friese crayon game Funkenschlag. It removes the crayon aspect from network building in the original edition, while retaining the fluctuating commodities market like Crude: The Oil Game and an auction round intensity reminiscent of The Princes of Florence.
The object of Power Grid is to supply the most cities with power when someone's network gains a predetermined size. In this new edition, players mark pre-existing routes between cities for connection, and then bid against each other to purchase the power plants that they use to power their cities.
However, as plants are purchased, newer, more efficient plants become available, so by merely purchasing, you're potentially allowing others access to superior equipment.
Additionally, players must acquire the raw materials (coal, oil, garbage, and uranium) needed to power said plants (except for the 'renewable' windfarm/ solar plants, which require no fuel), making it a constant struggle to upgrade your plants for maximum efficiency while still retaining enough wealth to quickly expand your network to get the cheapest routes.
Power Grid FAQ:
Power Grid FAQ - Please read this before posting a rules question! Many questions are asked over and over in the forums.
Power Grid: Theme Park – exclusive to the BGG Promo Set (and includes the Essen 2008, 2009 and 2010 promo cards)
Notes:
The expansions France/Italy, Benelux/Central Europe, China/Korea, Brazil/Spain & Portugal and Russia/Japan include new double-sided game boards. These change the game by not only changing the characteristics of the geography, but also by changing the rules for power plant availability, resource availability, tying plant ownership and/or resource availability and/or price to geographic regions on the map, etc.
The EnBW and Mégawatts editions are the standard base game bundled with different boards (Baden-Württemberg/Germany and Québec/France respectively.) The Baden-Württemberg and Québec maps are available separately in a limited expansion Québec/Baden-Wuerttemberg. The USA/Germany map (provided as part of the standard base game) is not available separately to owners of those editions.
Resource tables for all the official Power Grid maps up to Québec & Baden-Wuerttemberg (2012).
Formatted as double-sided cards
Including setup card (single-sided).
Official rules for all the promo cards released up to 2011 (includes "Supply Contract"). Italian translation.
Traduzione in italiano delle regole ufficiali per tutte le Carte Promo pubblicate fino al 2011 (include "Contratto di fornitura").
Resource tables in Italian for all the Power Grid maps. Includes general setup card. Original layout in colors.
Tabelle risorse in italiano per tutte le mappe di Alta Tensione. Include scheda setup. Su layout originale, a colori.
A quick and short reference of Initial resources, Resource supply rate, and rules changes of all the Map expansions, as well as a summary of The Robots expansion.