The Ford Focus Fuel Cell Vehicle (FCV) is the company's most advanced environmental vehicle ever. It also is one of the industry's first "hybridized fuel cell vehicles" - which combines the improved range and performance of hybrid technology with the overall benefits of a fuel cell. The Ford Focus FCV uses a Ballard fuel cell engine that converts chemical energy into electrical energy using hydrogen and oxygen. The electrical energy then powers the vehicle's electric-drive motor, producing only water and heat as by-products. The new Focus FCV has been "hybridized" with the addition of a Sanyo battery pack and a brake-by-wire electro-hydraulic series regenerative braking system. A regenerative braking system works to recapture energy in the form of electricity as the brakes are applied. These advanced technologies also are found on the Hybrid Escape, which goes on sale end of summer 2004. The Focus FCV has an advanced hydrogen storage tank, which can handle 5,000 pounds per square inch (psi) of hydrogen. Together, the new battery pack, regenerative braking and the storage tank help increase the driving range of the third generation Focus FCV to almost 200 miles.