HTMR-100
**Vendor/Designer:** [[vendors/stl--steenkampskraal]]
Key Stats
100/100
HTMR-100
Status: CONCEPTUAL_DESIGN Category: SMR Country: South Africa [South Africa](/library/wiki/countries/South Africa) Vendor/Designer: stl--steenkampskraal Type: Pebble bed HTGR [Pebble bed HTGR](/library/wiki/technologies/Pebble bed HTGR) Capacity: 35 MWe
Overview
The HTMR-100 is a conceptual small modular reactor (SMR) design by STL (Steenkampskraal) in South Africa, based on a pebble bed high-temperature gas-cooled reactor (HTGR). It is significant for its potential to provide safe, modular power generation suited to regional energy needs. As it is in the conceptual design phase, no operational history or site information is available.
Key Facts
Source: IAEA PRIS / reactors_canonical · Enriched by Grok Last updated: 2026-05-10
Sources
- World Nuclear Association - South Africa — Overview of nuclear energy developments in South Africa, including mentions of SMR concepts like HTMR-100.
- World Nuclear News - Steenkampskraal's HTMR-100 [UNVERIFIED] — Article discussing STL's plans for the HTMR-100 reactor design in South Africa.
- Steenkampskraal Thorium Limited (STL) — Official website of the vendor/designer with information on the HTMR-100 project.
Sources (1)
Related Notes
ACP100 (Changjiang demo)
The ACP100, located at the Changjiang site in China, is a planned small modular reactor (SMR) demonstration project, marking a significant step in China's exploration of compact nuclear power solutions. With a capacity of 125 MWe, it aims to provide flexible, scalable energy for civilian application
reactorsACP100 "Linglong One"
**Vendor/Designer:** [[vendors/cnnc]]
reactorsThree Mile Island Unit 1 (restart)
Located in Middletown, Pennsylvania, USA, Three Mile Island Unit 1 is a pressurized water reactor with a net capacity of 835 MWe, historically significant for its long operational history since 1974. Shut down in 2019, a restart is now planned to bring it back online, contributing to clean energy go
reactorsBREST-OD-300
**Vendor/Designer:** [[vendors/rosatom---nikiet]]
reactorsHIFAR (High-flux Australian Reactor)
The HIFAR research reactor was situated at Lucas Heights in New South Wales, Australia, and operated by ANSTO. It was a cornerstone of Australian nuclear research for isotope production and neutron scattering over its 49-year operational history until its shutdown in 2007, when it was replaced by th
reactorsBandung TRIGA (Reaktor TRIGA 2000)
Located at the Bandung Nuclear Technology Center in West Java, Indonesia, this TRIGA Mark II reactor serves as a key facility for research and training. It plays a significant role in neutron activation analysis and educational programs in nuclear science. Operational since its commissioning, it sup