Porsche has launched two new cogeneration plants at its Zuffenhausen site as part of its goal of CO2 neutral production of the electric Taycan.

The heat and power plants, each of which has an output of around two megawatts, run on biogas and residual products produced from organic waste.

In contrast to conventional power plants, cogeneration plants are used to generate heat and power in parallel. They do not emit the heat generated as part of energy production into the environment, but use it for heating. Their efficiency can be maximised by operating them close to the area in which heat is constantly required: such as close to the paint shop, its immersion baths and drying areas, where steady process heat is needed.

Approximately 90% of the heat generated will be used to heat and provide hot water for the office and production buildings at Zuffenhausen where almost 12,000 people work.

"The new cogeneration plants have a total efficiency of over 83," said Stephan Hartmann of the automaker's environmental and energy management division.

The two new plants will complement natural gas heat and power generation already in place at the site. These plants will also be switched to biogas.

In Stuttgart, Porsche will use bioenergy from the city's organic waste plant after commissioning in 2021.

Porsche will launch he four-door electric sports car at the end of 2019.

"Our objective is not merely to produce a CO2-neutral zero-emissions car, but rather to ensure that we do not leave any environmental footprint at all. To this end, we are pursing the vision of a 'zero-impact factory'. The new cogeneration plants are an important step in the right direction," said Albrecht Reimold, head of production and logistics.