Energy production

In 2009, a boiler plant was built at Halls Farm to produce heat based on wood chips from the estate's forest.

From the central station, heating culverts run to all the farm buildings, including the grain dryer, as well as to the castle and the houses around it. Heat production is operated by Trolleholms Kraft AB, which is a wholly owned subsidiary of Trolleholms Gods AB.

Every two years, Falu Rödfärg rewards an architect who combines modern Swedish architecture with traditional mud color. The 2010 award went to architect Mats Molén, SAR/MSA for his design of the facility, which was painted with black sludge paint.

In 2021, solar panels were completed on several of the roofs of the farm center with a total capacity of about 250kw.