HI-THERM Hybrid Solar Power (HSP) system is a solar energy concentrator, which consists of a set of closely spaced concave mirrors, known as Heliostats, that pivot continuously to reflect the sunlight to a receiver/absorber throughout the day. All Heliostats are designed to focus their converging solar rays onto one or more Receivers, which have a large surface and are mounted on a tall tower to enable a large population of Heliostats to deposit their concentrated solar beams on them. The intense heat of the sun is delivered to °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023’s innovative Solar Energy Recovery Exchanger (SOLEREX) receivers, which then transfer the thermal energy to the molten salt circulating inside of them.

HI-THERM
°ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023’s HI-THERM Hybrid Solar Power (HSP) Technology

To make the intermittent solar power into a base load provider, °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023’s Green Boiler technology is employed. The Green Boiler serves as the capacitor of the thermal energy conveyed to it by the circulating molten salt. The Green Boiler also serves as the Steam Generator delivering high pressure steam to the turbogenerator. 

°ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023’s HI-THERM HSP contains several unique features that make its performance a game changer for the industry:

  • A series of Cavity Receivers are mounted all around the Power Tower to capture concentrated sunlight with the smallest heat loss, and the Heliostats surround the Tower in every direction.
  • For large fields, the Receiver groups are mounted at two elevations to enable both near-field and far-field heliostats to deliver their Sun beams to the tower.
  • The Green Boiler is utilized to convert the unsteady supply of solar energy into a continuous generation of electrical energy, thus eliminating solar power’s main drawback.
  • The HI-THERM HSP is designed to collect, on average, 8 MWh of (thermal) energy per day per acre of land in the central belt of the earth (defined as 30-degree latitude north or south of the equator). In comparison, the conventional Concentrated Soler Power (CSP) plants built to date achieve a solar capture rate of only 2.3 – 3.5 MWh per acre.

The technical innovations embedded by °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023 underlie the significant cost reductions in the levelized cost of electricity (LCOE) that will be realized by the HI-THERM HSP technology, which is expected to lead to growing acceptance of the CSP technology in the industry. °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023’s HI-THERM HSP will play an even more important role in weaning high temperature Industrial Process Heat (IPH) away from fossil fuels, which is responsible for over a quarter of all COemissions in the world. 

For example, on a 100-acre plot of land in Hyderabad, India, the °ÄÃÅÁùºÏ²Ê¿ª½±½á¹û2023 HI-THERM HSP is expected to yield 800 MWhtof energy per day. Assuming 35% cycle efficiency, this amounts to 280 MWh of electric power per day or 11.7 MWe on a 24-hour basis. It is equally feasible to inject thermal energy from the SMR-300 or the grid (when there is surplus power) along with that from the HI-THERM HSP. In other words, every available source of clean energy input can be aggregated at a site to produce on-demand or continuous (base load) supply of power.