Though its image has to shake off some coal dust, Facebook’s data center in Prineville Ore. is loaded with energy efficiency features. Also, HP and IBM are advancing powerful, low-power computing in the run-up to exascale computing; tape comes to the rescue after Gmail’s cloud fail; and Honeywell leverages open source for the smart grid in China.

All that, and more, in Today’s 10 green IT links.

Facebook Prineville: Lot of Data, Lot of Green – KTVZ.com
Despite the coal controversy, Facebook’s data center is shaping up to be a green indeed.

Remapping Computer Circuitry to Avert Impending Bottlenecks – The New York Times
Exascale computing that won’t dim the lights in your neighborhood will require next-gen chip designs.

Server Architectures: Low Power is the New Black – IT Business Edge

Google goes to the tape to get lost emails back – Fortune
The more things change…

Fusion-io broadens its reach for super-fast memory devices – VentureBeat

Intel Announces New SSD 510, Promises Speeds Above 500 MBps – Laptop

Open Source Smart Grid Goes to China, Courtesy of Honeywell – GigaOm | Earth2Tech

Will the smart grid become law enforcement’s new best friend? – Computerworld Blogs<

Cuts threaten green energy growth, says Ernst & Young – Guardian
Government penny-pinching could stall the UK’s clean energy momentum.

WeatherBill: Is It the Riskiest Startup Ever? – Greentech Media

Happy March 2011!