Low temperature heat energy
In comparison to ORC-systems, Climeons Heat Power system reaches a higher efficiency due to its unique low pressure technology and patented condensation solution, among other things. Due to the low pressure, the internal energy consumption can be decreased by 90 percent compared to traditional ORC systems. The result is a simpler solution that makes it economically viable to produce electricity from low temperature sources (below 120 °C).
Climeon’s Heat Power system is directed towards the same industry segments as traditional ORC systems, but thanks to the improved performance Climeon can address a new and relatively unexplored market – waste and geothermal heat sources below 120 °C.
Climeon converts two types of heat sources - waste heat and geothermal energy.
Geothermal energy is heat energy stored in the earth crust. It is one of few sources that can provide a renewable base load. High temperature geothermal reservoirs are approximately 6000 meters deep and aim to provide a heat source above 150 °C. The largest part of geothermal energy that is obtained today comes from high temperature reservoirs which are mainly found in certain geographical areas along the peripheries of tectonic plates. The geothermal heat is more accessible in these areas as the bedrock is hotter at shallower depths. During constructions of new geothermal power plants the costs and risks when prospecting are the largest associated risks. The drilling costs constitute approximately 42 percent of the total cost for constructing a geothermal power plant with high temperature reservoirs.
Find out more about Climeon's solution for geothermal energy here.
The majority of available geothermal energy is however available at lower temperatures. These sources are currently only exploited for heating purposes because of the low conversion efficiencies of legacy ORC systems at these temperatures.
With the introduction of Climeon’s Heat Power system, geothermal energy at low temperatures can now be exploited for electricity production. If prospecting is done in, for example, Germany the average reservoir depth for a source at about 100 °C would reach just over 3000 meters below the surface, whereas a source at around 180 °C on average would require a drilling depth greater than 6000 meters. The result is a reduction in drilling costs by more than 60 percent.
Within the geothermal energy segment, there are two different usage areas for Climeon’s Heat Power system, either as a supplementing system for current technology, or as the primary system for electricity production at a geothermal power plant with low temperatures.
In a supplementary role the Heat Power system works in parallel with current technology at existing geothermal power plants using high temperatures, and can utilize heat that would otherwise be lost in an ORC system. Meaning that today’s geothermal power plants using ORC systems are instantly addressable.
Also, many geothermal power plants are not economically viable due to their use of geothermal reservoirs with temperatures below 150 °C in combination with technology that cannot convert heat into electricity efficient enough at lower temperatures. Climeon’s Heat Power system has the potential to replace all the plants’ equipments used for electricity production. There are also a large number of unused geothermal reservoirs, mostly within oil and gas prospecting wells or old geothermal wells which have not reached high enough temperatures for traditional geothermal technology to work. Such reservoirs can be used and new plants can be built on at those sites.