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- Written by Ingrid Schweden
- Category: EK Referenzen
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Investigation of various options for a heating system, the island of Krk, Croatia
The administrative buildings of the town of Krk are currently heated with an oil boiler that is more than 30 years old. Besides the equipment’s inefficiency, the increasing cost of oil mean that the plant no longer provides an adequate performance. An improvement in efficiency, together with a lowering of heating costs, became an important goal.
igr investigated heating options using a combined heat and power unit (powered either by oil or liquefied natural gas), as well as heating systems powered by wood chips and/or pellets. At the particular request of the town of Krk, a combination system using wood pellets and a solar-thermal plant was considered. The goal of the investigation was to compare the corresponding financial costs of the various options with the current system, in order to recommend a long-term economic option.
Services provided by igr
- Data collection and assessment
- Price trend scenarios for a variety of fuels
- Needs assessment by means of consumption data and the existing building fabric
- Efficiency scenarios
- Analysis of the respective operation costs
- Investment and financing plan
- Comparison of respective annual financial cost to the public budget
Key figures
- ca. 6,500 inhabitants
- Details
- Written by Ingrid Schweden
- Category: EK Referenzen
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Planning the photovoltaic system on the Treskavac waste reception hall, the island of Krk, Croatia
The first photovoltaic system on the island of Krk was built on the roof of the Treskavac waste reception hall. The system has an output of 136.8 kWp.
The island of Krk, with its municipal operator Ponikve d.o.o. is the front runner for environmental and climate protection in the region.
igr provided the entire authorisation and planning services for the construction project. The system will be subsidised through the Croatian environmental fund.
Services provided by igr
- Project leadership/project management
- Entire project planning
- Authorisation processes
- Tender processes
- On-site construction supervision
Key figures
- ca. 934 m² roof area
- ca. 136.8 kWp
- ca. 169,886 kWh solar power harvest
- Details
- Written by Ingrid Schweden
- Category: EK Referenzen
- Hits: 31354
Planning, management and supervision of the Enkenbach-Alsenborn biomass thermal power plant, district of Kaiserslautern
The Enkenbach-Alsenborn municipality has constructed a biomass thermal power plant, in which exclusively renewable raw materials are used to produce energy. The feed-in tariff is fixed according to the German renewable energy act (EEG) and the co-generation act (KWK-Gesetz). igr was commissioned to provide overall planning, construction supervision and project management.
Heat extraction is adjusted flexibly; so that it is possible to match the power production and heat production to actual demand. The heat produced supplies the Enkenbach-Alsenborn municipality local heating network. Using air-cooled condensers waste heat can be delivered at a lower temperature to operate greenhouses (optional service).
Residual wood from forests and green waste is exploited in this biomass thermal power plant. In total the biomass thermal power plant produces the following types of energy: electricity, heat for a local heating network at 134 °C and heat from waste heat at 50 °C for greenhouses (optional).
Services provided by igr
- Project management
- Overall planning in accordance with Federal pollution control legislation § 4 BimSchG
- Construction supervision
Key figures
- Turbine output: flexible up to 2.6 MW
- Heat extraction: flexible up to 3.0 MW
- Steam production 11.5 MW
- 25,000 t/a renewable raw materials
- Details
- Written by Ingrid Schweden
- Category: EK Referenzen
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Planning, management and supervision of the Kaiserslautern biomass thermal power plant, city of Kaiserslautern
The Kaiserslautern joint venture for waste management (ZAK) has decided to utilise biomass in a thermal power plant at the Kapiteltal depot. A biomass thermal power plant was built for this purpose. igr was commissioned with the planning and project management.
The economic efficiency of such a plant depends, amongst other things, on the power being on the power being fed into the public power network at subsidised rates (as required by German renewable energy legislation). In Germany, the network operator is required to accept renewably generated power and to pay a minimum tariff to the producer.
Old and new wood, landfill gas from the landfill waste, and biogas derived from methanation are used in the biomass thermal power plant.
The biomass thermal power plant provides the following types of energy: electrical energy, heat extracted for the internal company network, and process heat recovery.
Services provided by igr
- Project management
- Planning of engineering constructions
- Structural planning
- Specialist planning of technical equipment
- Technical surveying services
Key figures
- 25,000 MWh/a power output
- 4,000 MWh/a heat output
- 20,000 t/a combustible material – wood (class A I and A II)
- 800 Nm³/h landfill/bio gas
- Details
- Written by Ingrid Schweden
- Category: EK Referenzen
- Hits: 29768
Overall locality strategy for wind energy use in the Offenbach an der Queich municipality
In order to find landscape and nature conservation compatible sites for wind energy use, igr was commissioned by the Offenbach a. d. Queich municipality to produce an area strategy for wind energy use.
As a first step, all areas being used for activities incompatible with wind energy were excluded and buffered with a safe distance. Following this exclusion process, two potentially suitable large areas remained. These were again mapped in detail and on the basis of the criteria (wind speed, landscape and overlap with areas of limited suitability) assessed as well suited, partially suited or badly suited.
On the basis of this objective investigation and the resulting suitable areas, along with an assessment of the suitability of each, the municipality was able to decide which areas will be adopted as concentration/special areas for wind energy in the land use development plan.
Services provided by igr
- Overall locality strategy for wind energy
- Preparation of changes to the land use development plan
- Examination of the state planning position statement
- Undertaking the required (stakeholder) participation processes
- Preparation of an environmental report
Key figures
- 4,564 ha investigation area
- 700 ha assessed ‘potential’ areas
- 184 ha new special areas in land use development plan