These supply roughly 12,500 households, making it one of the biggest windfarm projects in a forest that has ever been built in the Federal Republic.

On the Burgberg (“Castle Mountain”), the yearly music festival Rock am Turm is held at Whitsun.

At Christmas, a lit, real fir tree (Tannenbaum in German) up to 8 m tall is put up on top of the castle tower.

The nearest InterCityExpress stop is the railway station at Montabaur on the Cologne-Frankfurt high-speed rail line.

On the occasion of its 750-year jubilee, the community of Hartenfels published a chronicle, written and compiled by the late Altbürgermeister und Ehrenbürger (“Old Mayor and Honorary Citizen”): Josef Marx.