Geothermal

Utilization of deep geothermal energy

In the municipality of Kirchweidach in Germany, since 2013 vegetables are being produced sustainably and residents are supplied with renewable heat and electricity based on deep geothermal energy. The biggest customer of the geothermal heat is a vegetable growing company using a 12 hectare large green house, cultivating regional peppers and tomatoes. This project is a unique flagship in terms of sustainability and environmental heat utilization strengthening the regional economy and location of the municipality in many ways.

Geothermal energy as the solution for small villages in Italy

The Brescia Province (Italy) is an area with major superficial aquifers and geological irregularity. This allows the exploitation of a geothermal source. Analysis of the results achieved by Cogeme SpA in the research of deep geothermal fluids and in the prototyping of “cold district heating” network systems allowing a rational use of groundwater for energy purposes.

Using coal mine water as source for district heating

Mijnwater BV stands for building a grid that is affordable for its customers, allowing them maximum opportunity to improve the energy efficiency of their own buildings, and resulting in a collective infrastructure that will further reduce energy needs. This should form a solid foundation for being sustainably financed in the long term.

Largest geothermal project in Hungary

Municipality of Miskolc City and PannErgy Plc. decided to decrease the natural gas consumption and hazardous material emission of the city’s central heating plant with renewable energy from a geothermal source, which would ultimately ensure a cleaner and more livable city for the inhabitants of Miskolc.

Geothermal energy from abandoned coal mines in Spain

Abandoned coal mines contain large volumes of water at constant temperatures (increasing with depth by 1-3 °C per 100 m), thanks to their networks of flooded galleries and shafts lying at depths of up to several hundred metres below the surface. Heat pumps can take this geothermal energy and uplift it to a more useful temperature.

100% Renewable Energy for the District Heating Network of Grenoble

The GRENOBLE-ALPES-METROPOLIS district heating, with its 170 km of liquid pressurized
water distribution pipes, is the second largest District Heating System in France (900 GWh). The
district heating is a strong part of the energy strategy of the city. The integration of renewable and recovery energy accelerates and solutions are deployed to achieve
a 100% RE District Heating in 2033. State of the art solutions (biomass, waste heat from incineration
plant, geothermal energy) are combined with innovative solution (storage, CO2 capture, smart control) .

Geothermal heat sources for the DH System of Ferrara

The network in Ferrara has already achieved significant results, but represents a perfect field to test advanced improvement strategies. As of 2014 the network is 56 km long, with 591 users’ substations, delivering approximately 143 GWht/a. The energy mix is a combination of geothermal source (14 MWt), WTE (30 MWt) and gas boilers, including a significant storage system (1,200 m3). The average temperature levels are 90°C on the supply line and 60°C on the return line.

Plymouth 5th generation heating and cooling

Through the HeatNet NWE project, Plymouth have developed a 5th generation heating and cooling masterplan for the City Centre and Millbay areas, with a total capital value of £15-20 million.

Geothermal energy for ensuring sustainable and affordable heating & cooling

The city of Litoměřice developed an Energy Concept in 2009 and adopted a Municipal Energy Plan in 2014. The main goal of the municipality is to reduce energy consumption by 20 % by 2030 (baseline year 2012). There are no specific targets regarding renewables (RES) in Litoměřice in the heating and cooling sector.
The city is developing a Sustainable Energy and Climate Action Plan as part of the Covenant of Mayors (www. eumayors.eu), which will define specific targets for RES.

Low Temperature Heating Grid in Dollnstein

Dollnstein is a small community with about 2,700 inhabitants in the heart of Bavaria, Germany. Dollnstein is located in the Altmühltal Nature Park, one of the most popular touristic destinations in Bavaria. In 2011, the municipality has initiated and in 2013/14 installed an intelligent heating network for about 40 households and several communal buildings.

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