The proposed project aims to develop very high temperature heat pumps (BCMAT) using industrial thermal waste below 90 °C to efficiently transform them into useful heat at temperatures up to 150 °C. It is a project in cooperation between a technology-based company, specialised in the revaluation of industrial waste heat and high temperature pressure volumetric systems, and a research center specialised in steam compression systems and new working fluids with low global warming potential (PCA). When the waste heat of the industries is greater than 150 °C it can be used directly in the form of heat for production processes or for its transformation into electricity. However, in different industrial sectors the emission of large amounts of waste heat at temperatures around 80-90 °C is detected, to which is joined by thermal power requirements for their production processes at higher temperature levels, up to 150 °C. All this causes that it is not possible to use it directly and end up being emitted into the atmosphere. BCMAT’s technology would allow to recycle this thermal waste and transform it into useful heat, being able to replace the use of fossil fuels for heat generation. Currently, the existing heat pumps on the market for industrial applications are limited to the production of temperatures below 90 °C and taking as a cold focus temperatures of up to 40-50 °C. The development of the BCMAT equipment capable of taking as a cold focus temperatures up to 90 °C and producing useful heat above 100 °C (up to 150 °C) with environmentally friendly refrigerants would represent the creation of a new industrial product with great prospects for use and that would help increase industrial energy efficiency, reducing CO2 emissions. In the proposed technological development, previously the design requirements of the BCMAT team will be studied based on the characterisation of industrial waste heat sources and the useful heat needs for the production processes of the same industrial sectors, establishing the bases of design of the team to be developed. In the technological challenge proposed to achieve the BCMAT team, the experience of the participants joins to face the main challenges of this technology that go through the selection of configuration and working fluid, development of high temperature technology, construction, characterisation and optimisation of a prototype to reach a competitive pre-industrial prototype. After establishing the design bases, the configuration-cooling binomial will be determined since both factors directly affect the energy performance of the system (COP). Configurations to increase efficiency without over-increasing complexity and high temperature refrigerants based on HFOs (hydrofluoroolefins) of zero ozone depletion potential and with low GWP values will be analysed. To do this, simulations will be carried out with own software to evaluate and cooler configurations in the operating conditions. For the compression system, the leading company of the project has a technological base for its development, based on the steam expansion systems that it currently has developed, having to adapt to the compression rate requirements that are required in the application. Finally, we will proceed to the design and construction of the BCMAT prototype, selecting the technology of the most suitable constituent elements. This prototype will be characterised experimentally in a wide range of production temperatures and cold focus, allowing to characterise and optimise the pre-competitive industrial prototype.