For those of you who haven't already seen it, this month's Fire Rescue magazine Gear Test review is on the Smart Power Liberator, which combines the hydraulic generator with the XRT rescue tool pump for an integrated power system.  The author's department uses Holmatro Core tools, but the Liberator system will power any brand and pressure of rescue tool, up to three tools simultaneously at full power, while putting out full-rated 120/240V electrical power for lights, fans, power tools, etc. 

Here's the link to the article http://www.firefighternation.com/article/extrication/gear-test-smar...

It's been available since 2009 and is getting quite popular on new rescue apparatus specs.