SANTA ROSA, CA - ZAP is currently offering plug-in hybrid conversion systems for the Toyota Prius and Ford Escape Hybrid through a collaboration agreement with Hybrids Plus.

Hybrid vehicles retrofitted with systems from Hybrids Plus of Boulder, Colo., can achieve a significantly greater fuel economy. In tests, these systems increased hybrid fuel economy up to 120 miles per gallon in the city and up to 90 mpg on the highway. The cost for the conversion ranges from $24,000 to $36,000, depending on the vehicle and size of battery pack, according to CNNMONEY

The plug-in hybrid electric vehicle (PHEV) will allow the owner to charge their vehicle from a normal household wall outlet. By integrating a larger battery pack and a plug-in charging system, it becomes a new vehicle drawing energy from two fuel sources.

Hybrids Plus has sold PHEV systems to private individuals, fleets, power companies, and governmental entities. Deliveries can be provided in approximately four weeks from the initial order.

“This is a natural extension of our growth plans,” said Hybrids Plus CEO Carl Lawrence. “ZAP has sold more city speed electric vehicles than any other company and has an established, growing dealer network that can provide sales and service for our vehicles.”