IPWR-900
Indian pressurized water nuclear reactor design
The Indian Pressurized Water Reactor-900 (IPWR-900) is a class of pressurized water reactors being designed by the Bhabha Atomic Research Centre (BARC) in partnership with the Nuclear Power Corporation of India Limited to supplement the Indian three-stage nuclear power programme.
History
BARC has developed an 83 MW compact light water reactor known as CLWR-B1 for the Indian Navy's Arihant-class submarine program which includes a prototype reactor operating at Kalpakkam since 2002 and was made operational in the INS Arihant in 2013. The experience gained in the naval reactor program is being used to develop a commercial electricity generation reactor of 900 MWe capacity.
To support the industrial capacity to fabricate the large forgings for a reactor pressure vessel, a heavy forge unit has been set up as a joint venture by the Nuclear Power Corporation of India Limited (NPCIL) and Indian engineering conglomerate Larsen & Toubro's subsidiary L&T Special Steels and Heavy Forgings Limited in Hazira, Gujarat. The joint venture has set up a 9000-ton forging press and plans to increase it to 17,000 tons. BARC reported the completion of manufacture of test forgings in August 2021 and confirmed the technological know-how and capability to manufacture forgings of thicknesses 350 mm to 750 mm essential to manufacturing of reactor pressure vessels for pressurized water reactor program.
Indian nuclear activities regulator Atomic Energy Regulatory Board carried out the Pre-Consenting design review for the design in the fiscal year 2015–16.
India is planning to reduce import dependence and to enter the export chain through this effort.
Design
The IPWR design is planned to retain commonality of majority of non-nuclear island components of the design with the IPHWR-700 pressurized heavy-water reactors currently in use to limit design timelines and construction costs. The steam generator design and configuration will also be adopted from the IPHWR-700 design.
“IPWR-900” enters the record as indian pressurized water nuclear reactor design. Crown Archives preserves that source wording while asking what IPWR-900, Indian and pressurized can confirm, complicate or overturn.
Why this record matters
“IPWR-900” is worth following because a concise public description often conceals a longer documentary argument. Here, IPWR-900, Indian and pressurized provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 9, 2026. The linked authority identifier is Q106464234. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2002, 2013, 2021 and 2015.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “IPWR-900”, its source revision and the description used here.
- Expand the search: follow IPWR-900 primary sources, IPWR-900 archive and IPWR-900 research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “IPWR-900”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “IPWR-900” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.