energetika 3 [vynechat] energy industries 3 [vynechat] power generation 3 [vynechat] výroba elektrickej energie 3 [vynechat] electric power 1 [vynechat] elektrická energia 1 [vynechat] energetické zdroje 1 [vynechat] energia 1 [vynechat] energy 1 [vynechat] environmental responsibility 1 [vynechat] environmentálna zodpovednosť 1 [vynechat] power resources 1 [vynechat] production of heat 1 [vynechat] technology 1 [vynechat] technológia 1 [vynechat] teplárenstvo 1 [vynechat]