Holmsjön with neighboring lake Leringen constitute a large water reservoir for the power industry and regulated by Leringsforsens power plants (sketch of the water flow in .pdf here).
Holmsjön na nchi jirani ya ziwa Leringen kuanzisha kubwa maji hifadhi kwa ajili ya sekta nguvu na umewekwa na nguvu ya kupanda Leringsforsens (mchoro wa mtiririko wa maji katika .pdf hapa).