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Plug-In Hybrids

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Click show for a short list of the current PHEV conversion and kit options for the Toyota Prius.

For Prius conversion details see the Prius PHEV article and comparisons table.

  1. Ron's Original PriusPlus History and current Contactor Based PriusPlus documentation for DIY projects.
  2. Ryan's PriusBlue is the testbed for DC-DC PFC Based PiPrius kits and documentation for DIY projects.
  3. Toyota OEM Prius PHEV and Prime Could use some work on this page
  4. Enginer China. But the rest of these appear to all be defunct as of 2020?
  5. |~- Hybrids-Plus USA/Colorado/Li -~|~- EnergyCS USA -~|~- Hymotion USA/Canada -~|~- Amberjac UK. -~|~- EDrive USA -~| Peter mentioned Plug-In Conversions |~-

A W:Plug-in Hybrid Electric Vehicle (PHEV) or gas-electric hybrid fueled vehicle is a hybrid which has additional battery capacity and the ability to be recharged from an external electrical outlet. In addition, modifications to the vehicle's control software may be required. The vehicle can be used for short trips of moderate speed without needing the W:internal combustion engine (ICE) component of the vehicle, thereby saving fuel costs. In this mode of operation the vehicle operates as a pure W:battery electric vehicle (BEV) with a weight penalty (the ICE). The long range and additional power of the ICE power train is available when needed.

PHEVs are commonly called "grid-connected hybrids," "gas-optional hybrids" (GO-HEVs), "full hybrids," and are sometimes called PHEV-30 for instance, to denote a hybrid with a 30-mile (50 km) electric range. Compared to a HEV-0 (a non-plug-in hybrid), or BEV/PHEV-300 in the case of the 300 mile tzero EV with its gasoline-fueled range extending trailer. While Ford, GM, and Toyota have all used the term "Full Hybrid Technology" to describe configurations that allow electric-only operation at low speeds, they can not plug in to recharge the battery. Two other PHEV names used by a major U.S. automotive supplier and in a 1999 SAE paper are "energy hybrids" and "true hybrids". PHEVs can also operate in a blended mode where both gasoline and external electricity are used simultaneously to increase gasoline mileage for a particular range, usually double that of its electric-only range. Connected vehicles also make possible Vehicle-to-grid applications which could provide many advantages to both grid operators and vehicle owners.


The PHEVLER is defined as a PHEV with sufficient battery capacity for all electric driving of twice the average daily distance. The average daily driving distance in the USA is 30 - 35 miles, so the 2016 Chevrolet Volt with an electric range of 53 miles is the first commercial car to (almost) qualify as a PHEVLER.

Prius PHEVs

There have been a number of successful Prius conversions. Ron of CalCars has a PbA conversion named PriusPlus and EDrive is expected to use Valence Li-ion batteries in conversions for consumers. Both are based on the 2004 or newer (Gen2) Toyota Prius and are now capable of charging from the grid using standard 120V AC outlets. They can operate as pure EV's at speeds up to 34 mph for the range of their larger batteries, which is about 10 miles for PbA and 30 miles with Li-ion batteries. They are also delivering vastly improved mileage at higher speeds in an EV-Heavy type of blended mode which delivers roughly twice the gasoline mileage during trips of twice their electric ranges (20 and 60 miles). Of course one should also consider the electric power required to recharge in these 100+ mpg situations (<$1 per gallon equivalent). During extended drives they operate just as a normal Prius and deliver their usual mileage. A purpose build PHEV would most likely be freeway capable in an electric only mode just like SEVA:Electric vehicles are. Enginer's affordable and universal plugin conversion kits can be easily retrofit into Gen 1, 2 and 3 Prius as well as other hybrids (tested on Honda Insight Gen 1, Gen2, Ford Escape Hybrid, Toyata Camry Hybrid, Lexus RX400H, Lexus LS250H).

Fleet Vehicles

Electric Fleet Vehicles. PHEV & BEV trucks, buses and cars are being used as commercial and government fleet vehicles.

Other Vehicles



See also


Hope it makes it into production and has 50 to 100 miles of EV range, which would be easy with modern Lithium.