Renewable Thermal Hybridization Framework for Industrial Process Heat Applications

Sertac Akar, Parthiv Kurup, Josh McTigue, Matt Boyd

Research output: Contribution to conferencePaper


Renewable thermal energy systems (RTES) could be hybridized with different renewable options (e.g., flat plate collectors (FPCs) with parabolic collectors), or combined with existing heat supplies (e.g., fossil fuels), to give options for targeted solar IPH applications, industrial decarbonization and the reduction of fuel consumption. Buildings and industrial thermal energy applications require different temperature ranges, quantities, and rates of thermal energy, and as such require flexible, cost competitive solutions, able to provide heat over various temperature ranges. Hybrid solutions and thermal energy storage (TES) will be important for the dispatch of heat at optimal times needed by the demand side of the buildings and industrial applications. A variety of tools and platforms, such as the System Advisor Model (SAM), can provide hourly thermal yield simulations from single renewable energy (RE) technology options, including FPCs or CSP for solar IPH. We have investigated a variety of approaches to hybrid system modeling for RTES at different temperatures or combinations of technologies and developed an initial framework. The hybridization framework starts by creating a heat stream and raising the temperature of that heat stream by various combinations of RE technologies and other sources such as fossil fuels, new fuels or electric heating in multiple stages, with options for TES and/or waste heat recovery (WHR).
Original languageAmerican English
Number of pages11
StatePublished - 2021
Event26th Annual SolarPACES Conference -
Duration: 28 Sep 20202 Oct 2020


Conference26th Annual SolarPACES Conference

Bibliographical note

Replaces December 2020 version: NREL/CP-6A50-77866; See NREL/CP-6A50-83278 for paper as published in proceedings

NREL Publication Number

  • NREL/CP-6A50-79675


  • concentrating solar power
  • hybrid systems
  • renewable thermal hybridization
  • RTES
  • solar
  • solar industrial process heat
  • system advisor model


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