Short-term emergency power demand can be guaranteed by new power storage system

The Wal­heim fire depart­ment is mak­ing an invest­ment for the future by mod­ern­iz­ing with regen­er­a­tive­ly gen­er­at­ed elec­tric­i­ty. Dur­ing the ren­o­va­tion of the sta­tion, a pow­er stor­age sys­tem from E3/DC was installed, which, thanks to its ener­get­i­cal­ly advan­ta­geous prop­er­ties, finances itself and is easy on the munic­i­pal purse. The project thus impres­sive­ly demon­strates what an opti­mized emer­gency pow­er sup­ply in fire depart­ment build­ings can look like.

For the admin­is­tra­tive com­put­er tech­nol­o­gy, numer­ous fire­fight­ing devices or even for open­ing the elec­tri­cal hall doors, the oper­a­tional fire sta­tion needs a con­tin­u­ous pow­er sup­ply — espe­cial­ly in the event of a dis­as­ter. In order to guar­an­tee the acute load of 3 to 4 kW in such moments, the new S10E house pow­er plant from E3/DC with 10 kWh stor­age vol­ume steps in. The intel­li­gent con­trol tech­nol­o­gy main­tains the back­up pow­er sup­ply (NEA) for sev­er­al hours. How­ev­er, the old tech­nol­o­gy is not com­plete­ly dis­pensed with. In the event of longer out­ages, the proven 85 kW diesel emer­gency gen­er­a­tor can sup­ply the required elec­tri­cal energy.

In addi­tion to the acute load, the mod­ern pow­er stor­age tech­nol­o­gy from E3/DC also scores points in every­day use. The bat­tery stor­age pro­vides the buffer for the also new pho­to­volta­ic sys­tem with 9.6 kWp out­put. The regen­er­a­tive­ly gen­er­at­ed elec­tric­i­ty is required, among oth­er things, for the build­ing heat­ing, which is ensured by a heat pump. In addi­tion, two elec­tric heat­ing rods feed the 800-liter domes­tic hot water tank.

“The new pow­er sup­ply with pho­to­volta­ic sys­tem and elec­tric­i­ty stor­age from E3/DC is prof­itable, com­pli­ant with reg­u­la­tions and cli­mate-friend­ly,” says fire depart­ment com­man­der Marko Horvath.

“The invest­ment will quick­ly pay for itself.”

- Manuel Schmid, man­ag­ing direc­tor of Blasen­brei & Schad­er Solar GmbH & Co. KG

In the first year alone, near­ly 9,917 kW, or about 45% of the total ener­gy demand, could be used or fed from own gen­er­a­tion. In addi­tion, the stor­age costs for fuel stor­age are elim­i­nat­ed and there is still enough space on the roof of the fire depart­ment for fur­ther pho­to­volta­ic sys­tems. All those involved agree: a clas­sic win-win sit­u­a­tion for the munic­i­pal­i­ty, the fire depart­ment, the pop­u­la­tion and last but not least: cli­mate protection.