German power use was up for the first half of 2017, with combined heat and power recognised as playing a significant part.
Power consumption in the first half of 2017 totalled 272 billion kilowatt hours (kWh), 1.6 per cent more than in the same period of 2016, according to industry association BDEW.
The group said in a statement the rise was due to colder weather early in the year and positive economic growth.
Usage of natural gas in Europe's biggest economy rose by more than 3 per cent from January to June to 516 billion kWh, it said in its review of the period, citing preliminary calculations.
Also influential was the push gas use received from greater usage of CHP, which capture and recycle heat produced during electricity generation instead of releasing it into the air.
The Berlin government passed a national subsidy scheme for the sector last year in a bid to promote energy efficiency.
"This prepared the ground for gas-fuelled CHP plants being run more intensely again," BDEW said.
BDEW represents around 1,800 companies active in the production, transport and sale of power, gas, water and heat.