Generation What?

Note: this is an updated version of an older post.

Below is a quick rundown of most of the reactors being marketed as of early 2012.  I'm using the term "marketed" somewhat loosely here, as not all reactors are being offered in all countries due to intellectual property rights, nationalism, or other considerations.  I have ignored a number of small reactor designs that I feel are just vaporware at this point.  The three small PWRs plus the ten of other types account for over half of the 24 models, but medium-large (for lack of a better term) PWRs such as the AP1000 have captured the overwhelming majority of the orders.

An oddity to note is that Westinghouse no longer markets a PWR derived from the ones it created in the 1960s due to a series of corporate mergers.  But the basic Westinghouse design lives on in the EPR, APWR, Amtea1 and CPR-1000 designs.  Westinghouse, which is 77% owned by Toshiba, now offers reactors derived from Combustion Engineering designs.  A minor point to note is that both GE-Hitachi and Toshiba are both marketing the ABWR.

By neutron speed, there are:

• 21 thermal reactors (150 to 4590 MWt)
• 3 fast reactors (30 to 2100 MWt)

By major type, there are:

• 14 pressurized water reactors (PWR; 150 to 4590 MWt)
• 4 boiling water reactors (BWR; 3370 to 4500 MWt)
• 3 pressurized heavy water reactor (PHWR; 2080 MWt)
• 2 sodium-cooled fast reactors (LMFR; 30 and 2100 MWt)
• 1 lead-bismuth-cooled fast reactor (LMFR; 75 MWt)

By design family, there are:

• 4 Westinghouse (WH) pressurized water reactors
• 4 Combustion Engineering (CE) pressurized water reactors
• 4 GE boiling water reactors
• 3 VVER pressurized water reactors (Russian PWRs evolved separately from western designs)
• 3 CANDU heavy water-moderated reactors
• 1 B&W small pressurized water reactor (probably derived from US Navy designs, may be new)
• 1 KLT-series small pressurized water reactor (evolution of Russian Navy designs)
• 1 BN-series sodium-cooled fast reactor (designed by a state-owned organization in Russia)
• 1 new small pressurized water reactor (stated as being derived from the AP1000, but so small that it's probably all new)
• 1 new small lead-bismuth-cooled fast reactor (probably a new design)
• 1 new small sodium-cooled fast reactor (probably a new design) 

By generation, there are:

• 12 "Generation III" designs (designs from the 1990s and 2000s with some passive safety features)
• 8 "Generation II+" designs (slight improvements over 1960s designs)
• 2 "Generation II" designs (basically 1960s designs)
• 2 designs I haven't classified because I lack familiarity with them

The term "generation" was introduced by the DOE several years ago in order to simplify the presentation of its strategy.  Right now it is pursing two goals: building evolved PWRs and BWRs (the Gen III models), and doing R&D on "Generation IV" reactors.  The marketing types have hijacked the nomenclature a bit, and have labeled some reactors "III+" as well as backfitted the "II+" designation on others.  I've ignored the III+ designation, but the II+ designation is not unreasonable because the designs have been worked on since they were first developed in the 1960s.

Reactor	Type	Gen.	MWt	MWe	Company	Family	Oper./ Const./ Frm. Pln.
4S	SCFR	?	30	10	Toshiba Power Systems	new SFR	0 / 0 / 0
Power Module	LBFR	?	75	25	Hyperion Power Generation	new LFR	0 / 0 / 0
BN-800	SCFR	II	2100	800	Atomstroyexport (Rosatom)	BN SFR	0 / 1 / 2
PHWR-700	PWHR	II	2170	640	NPCIL	CANDU	0 / 3 / 1
CANDU6	PWHR	II	2200	690	Candu Energy, Inc.	CANDU	11 / 0 / 0
EC6	PWHR	II+	2080	750	Candu Energy, Inc.	CANDU	0 / 0 / 0
CPR-1000	PWR	II+	3000	1000	China Guangdong Nuclear Power Group	ANP (WH) PWR	2 / 20 / 14
OPR-1000	PWR	II+	2825	990	Doosan Heavy Industries & Construction	DHIC (CE) PWR	7 / 3 / 0
System 80+	PWR	II+	3400	1120	Westinghouse (Toshiba)	CE PWR	0 / 0 / 0
VVER-1000	PWR	II+	3000	950	Atomenergoproekt / Atomstroyexport	VVER PWR	2 / 2 / 2
VVER-1200	PWR	II+	3200	1170	Atomenergoproekt / Atomstroyexport	VVER PWR	0 / 5 / 5
KLT-40S	PWR	II+	150	35	OKBM	SSSR PWR	0 / 2 / 0
ABWR	BWR	III	3900	1380	GE-Hitachi Nuclear Energy	GE BWR	2 / 4 / 0
ABWR	BWR	III	3900	1350	Toshiba Power Systems	GE BWR	2 / 1 / 2
Atmea1	PWR	III	3150	1150	Mitsubishi Heavy Industries-Areva NP	MHI/ANP (WH) PWR	0 / 0 / 0
AP1000	PWR	III	3400	1150	Westinghouse (Toshiba)	CE PWR	0 / 5 / 17
APR-1400	PWR	III	4000	1350	Doosan Heavy Industries & Construction	DHIC (CE) PWR	0 / 2 / 10
APWR	PWR	III	4450	1700	Mitsubishi Heavy Industries	MHI (WH) PWR	0 / 0 / 0
EPR	PWR	III	4590	1630	Areva Nuclear Power	ANP (WH) PWR	0 / 4 / 1
ESBWR	BWR	III	4500	1600	GE-Hitachi Nuclear Energy	GE BWR	0 / 0 / 0
Kerena	BWR	III	3370	1250	Areva Nuclear Power	KWU (GE) BWR	0 / 0 / 0
MIR-1200	PWR	III	3200	1170	Atomstroyexport/Skoda	VVER PWR	0 / 0 / 2
mPower	PWR	III	400	125	Babcock & Wilcox	USN PWR?	0 / 0 / 1
WSMR	PWR	III	800	225	Westinghouse (Toshiba)	CE PWR?	0 / 0 / 0

Note: the PHWR-700 is not being marketed per say, but it is the current standard domestic plant for India, and there are several examples under construction.