HRT will use KERS technology for the first time in 2012, the Spanish team announced on Thursday.
In a media statement, it was confirmed that the Colin Kolles-led team has extended its technical tie-up with Williams, which in 2011 featured the supply of the gearbox.
"Williams F1 will also supply the team with KERS and its related technology for the first time", said HRT.
The team said the 2012 car, F112, is being designed in Munich.
"We are working on thoroughly improving the performance of our cars and our target is still to finish in the top ten in 2012," said Kolles. "This deal brings us one step closer to that objective."