Industrial heat production is responsible for around 20% of total greenhouse gas emissions in Europe. To achievethe climate change goals defined in the Paris Climate Agreement, the EU commission has shifted its focus onsustainable means to generate heating. Moreover, global dependencies are leading to a re-organization of naturalgas supplies. Therefore, there is a need for less vulnerable and less price volatile solutions for heating. This paperfocuses on two decarbonization technologies for industrial process heat supply: (a) electricity-driven steamgenerating high-temperature heat pumps (HTHP), a technology that is more efficient than fossil fuel boilers ingenerating steam, and (b) solar parabolic trough collector (PTC), which can produce heat economically and at aminimal carbon footprint compared to other technologies. The main aim of this paper is to evaluate the levelizedcost of heat (LCOH) of these technologies to fulfill a comparative techno-economic analysis. A maximum PTCcollector's solar fraction limit is defined to indicate when the LCOH for these two technologies is equal. This limitallows distinguishing between the economic stronghold of each technology. The evaluation is carried out throughthe annual energy simulations using TRNSYS and Excel spreadsheets for HTHPs, while TRNSED and OCTAVEare used for the solar thermal part. Boundary conditions for European geographical constraints have been appliedto establish use cases for the analysis. The result shows that the design of a PTC system with optimal SF can reachcost parity with HTHP for most of the analyzed locations. The developed methodology serves as a valuable guideto quickly determine a preferred lower carbon heat solution, thus easing the decision-making for industries.