Industrial Production Products & Services

Once-Through Steam Generators: Market Size, Growth & Forecast to 2030

The Once-Through Steam Generators market is valued at about $0.49 billion (2026) and is projected to grow at a 6.4% CAGR through 2030. The largest cost driver is High-grade alloy and stainless steel piping (42% of spend).

Market size
$0.49 bn (2026)
CAGR to 2030
+6.4%
Buyer power
Favours buyers
Tracked suppliers
25
Projected market growth (index, 2026 = 100)
Base year 2026
Official data · Claight projectionForecast
Market size index, 2026 = 100, at the 6.4% CAGR.
Forecast
2026
2027
2028
2029
2030
2031
2026 base: 1002031 est: 136

Cost structure

High-grade alloy and stainless steel piping
42%
Precision engineering and specialized manufacturing labor
23%
Inbound and site-delivery logistics
14%
Control systems and ancillary equipment components
12%
Factory overhead and energy compliance testing
9%

Key suppliers

GE VernovaSiemens Energy AGMitsubishi Heavy IndustriesNooter EriksenBabcock and Wilcox EnterprisesTIW Western Inc
Read the full Once-Through Steam Generators report →

Claight market analysis of proprietary and public data. Full report: /category-intelligence/once-through-steam-generators