Projects in Idar-Oberstein

Stadtwerke Idar-Oberstein modernized the indoor pool between July 2015 and September 2016 and brought it up to the latest energy standards. The project was funded as part of the German government's climate protection initiative.

The aims of the refurbishment were:

• Reduction in electricity consumption and CO2 emissions from ventilation systems
• Reduction in electricity consumption and CO2 emissions from lighting systems (interior and hall lighting)

Measures implemented:

• Refurbishment of the ventilation and air-conditioning systems (funding code FKZ 03K01597) with planned electricity savings of around 82,600 kWh/year (= 45% ) by retrofitting 2 ventilation and air-conditioning systems
• Refurbishment of the lighting (funding code FKZ 03K01607) with planned electricity savings of around 56,000 kWh/year (= 64%) through the installation of highly efficient LED lighting with demand-based lighting control
• The planned CO2 avoidance amounts to 975 tons in the area of ventilation systems and 661 tons in the area of lighting systems, both over a period of 20 years.

The measures were funded in accordance with the EU decision with funding programs from the German government's climate protection initiative. The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU), together with the Jülich project management agency, supported and accompanied the modernization and energy-efficient refurbishment of the municipal indoor swimming pool with funding for the climate protection projects for ventilation and lighting systems.

The aim is to promote the use of solar energy for solar power generation with the help of "plug-in balcony PV systems".

Alongside wastewater treatment, street lighting is the largest consumer of electricity for the city's administration. The lighting network comprises around 5,500 street lights.

In the project "Replacing street lights in the urban area with highly efficient lighting technology" , 619 street lights (with sodium vapor lamps and fluorescent lamps) on around 24 kilometers of road were converted to more efficient LED technology between December 2020 and May 2021. Savings were achieved in terms of installed light output, electricity consumption and CO2 emissions. The following were renewed:

• large box lights on the main roads: Hauptstraße, Mainzer Straße, Tiefensteiner Straße, Herrsteiner Straße, Hettenrodter Straße, Pappelstraße, Vollmersbachstraße, Kobachstraße, Layenstraße, Ginsterweg, Ezenichstraße, Schützenstraße, Nordtorstraße, Am Rilchenberg, Friedrichstraße, Auf der Idar, Saarstraße, Weierbacher Straße

• Large box luminaires and fluorescent lamps on side streets: Ginsterweg, Heinzewies, Dr.-Otmar-Kohler-Straße, Hahrachstraße, Friedrichstraße, Hohlstraße, Jahnstraße, Hasbachstraße, Homerich, Auf dem Bilzacker Händelstraße, Brahmstraße

• small box lights on the main roads: Emil-Kirschmann-Brücke (Mainzer Straße), Hauptstraße 332-316

• The installed luminaire output could be reduced from depending on the type of luminaire:
  • 122 to 50 watts per large box light
  • 88 to 44 watts per specific box light or fluorescent lamp
  • 77 to 35 watts per small box light

• Electricity consumption has been reduced by 217,070 kWh per year. Each luminaire is in operation for 4,000 hours per year and its power consumption is also reduced.

• CO2 emissions are reduced by approx. 19.2 tons per year. The CO2 equivalent is calculated at 0.408 kg/kWh.

• Electricity costs were reduced by around € 47,100 per year. This was based on an electricity price of € 0.22/kWh.

The project was funded by the federal government's National Climate Protection Initiative with the funding code: 03K12676 and by the state program Zukunftsfähige Energieinfrastruktur with the project number: Zeis B-005.

In the project "Renewal of street lights on Oberstein market square", 34 street lights on Oberstein market square were converted to LED technology with the help of sponsorship from OIE AG.