The grid

The Grid is Peter Seibel's 2009 Nanowrimo effort.
It takes place in a near future when Moore’s Law has crashed. The number of transistors that can be fit into a single integrated circuit, and with it the performance of computers per dollar spent, no longer double every two years. By the time The Grid begins, it has stopped growing altogether.
Around the same time as computer performance stopped rising exponentially, energy costs started to. Exacerbated by the ill-timed collapse of Moore’s Law, it was too late to find alternative energy sources. Once Moore’s Law crashed, the cost of developing those technologies started to rise since designing new solar panels or efficient wind turbines required lots of computation and computation was no longer cheap.
Soon it made no sense for anyone but a few companies to run their own computers and computing moved onto the grid. After an intense period of competition all the grid computing powers either merged or died until there was a single Grid, responsible for all the computation that happened on the planet. Users of the Grid have returned to a world of dumb terminals and computers run by a technological priesthood, tending to machines ensconced in air conditioned rooms, inaccessible to the lay public.