Natural gas is the preferred fuel for residential, light-commercial, and gaseous-only industrial standby applications below ~600 kW. Utility-supplied gas eliminates on-site fuel storage, simplifies AHJ approval (no UL 142 tank), and keeps PM intervals long under standby duty. Capacity is constrained by utility supply pressure (typically 5–14" WC residential, up to 5 PSI commercial) and by the engine's published BTU/hr at full load. Below are gaseous standby models in our service portfolio with manufacturer specs and field notes.
223 models in this category.
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Open Basler controller + PSI engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
100 kW standby · Natural Gas / LPG · Liquid-cooled
100 kW natural gas standby for commercial, school, and multi-family buildings where gas-fueled backup and component independence matter.
100 kW natural gas standby generator (80 kW on LP) from Blue Star Power Systems. PSI 5.7LTCAC turbocharged charge-air-cooled V8, Stamford UCI274C alternator, DSE DCP7310 controller, 208-600V output.
Open Basler controller + PSI engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
60 kW standby · Natural Gas / LPG · Liquid-cooled
55 kW prime natural gas for continuous-duty commercial applications, cogeneration sites, and facilities needing 24/7 gas-fueled power.
55 kW prime / 60 kW standby natural gas / LP generator from Blue Star Power Systems. PSI 5.7L eight-cylinder V8 with catalyst/silencer, Stamford UCI224E alternator, DSE DCP7310 controller, 208-600V output.
Open Basler controller + PSI V16 engine + Stamford alternator — no proprietary lock-in. 1 MW gas class without OEM dealer dependency.
1.1 MW standby · Natural Gas / LPG · Liquid-cooled
1050 kW natural gas standby for data centers, campus power, and utility-scale gas applications where component independence matters.
1050 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 53L V16 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 480-4160V.
Open Basler controller + PSI V16 engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
1.1 MW standby · Natural Gas / LPG · Liquid-cooled
900 kW prime natural gas for continuous-duty data center, CHP, and utility-scale applications needing 24/7 gas-fueled power.
900 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 53L V16 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 480-4160V.
Open Basler controller + PSI high-output V16 engine + Stamford alternator — no proprietary lock-in. 1.25 MW gas class without OEM dealer dependency.
1.3 MW standby · Natural Gas · Liquid-cooled
1250 kW natural-gas-only standby for data centers and utility-scale facilities where gas-fueled backup and component independence matter.
1250 kW natural-gas-only standby generator from Blue Star Power Systems. PSI 53LHO high-output V16 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 480-4160V. LP not available.
Open Basler controller + PSI engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
150 kW standby · Natural Gas / LPG · Liquid-cooled
125 kW prime natural gas for continuous-duty commercial and institutional applications needing 24/7 gas-fueled power with component independence.
125 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 8.1LT inline-six, DSE DCP7310 controller, 208-600V, continuous prime duty.
Open Basler controller + PSI engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
200 kW standby · Natural Gas / LPG · Liquid-cooled
175 kW prime natural gas for continuous-duty commercial and institutional applications needing 24/7 gas-fueled power with component independence.
175 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 11.1L inline-six, DSE DCP7310 controller, 208-600V, continuous prime duty.
Open Basler controller + PSI engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
265 kW standby · Natural Gas / LPG · Liquid-cooled
265 kW natural gas standby for large commercial, campus, and hospital (non-critical) facilities where gas-fueled backup matters.
265 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 14.6L turbocharged V8, DSE DCP7310 controller, structural steel base, 208-600V.
Open Basler controller + PSI engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
265 kW standby · Natural Gas / LPG · Liquid-cooled
250 kW prime natural gas for continuous-duty commercial, CHP, and campus applications needing 24/7 gas-fueled power.
250 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 14.6L V8, DSE DCP7310 controller, structural steel base, continuous prime duty.
Open Basler controller + PSI engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
300 kW standby · Natural Gas / LPG · Liquid-cooled
300 kW natural gas standby for large commercial, campus, and institutional facilities where gas-fueled backup and component independence matter.
300 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 14.6L turbocharged V8, DSE DCP7310 controller, structural steel base, three-phase 208-600V.
Open Basler controller + PSI engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
300 kW standby · Natural Gas / LPG · Liquid-cooled
260 kW prime natural gas for continuous-duty commercial, CHP, and campus applications needing 24/7 gas-fueled power.
260 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 14.6L V8, DSE DCP7310 controller, structural steel base, three-phase 208-600V.
Open Basler controller + PSI high-output engine + Stamford alternator — no proprietary lock-in. Serviceable by any qualified tech.
350 kW standby · Natural Gas · Liquid-cooled
350 kW natural gas standby for large commercial, campus, and data center facilities where gas-fueled backup and component independence matter.
350 kW natural gas standby generator from Blue Star Power Systems. PSI 14.6LHO high-output V8, DSE DCP7310 controller, structural steel base, three-phase 208-600V. Natural gas only — no LP rating.
Open Basler controller + PSI V12 engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
400 kW standby · Natural Gas / LPG · Liquid-cooled
400 kW natural gas standby for large commercial, campus, and data center facilities where gas-fueled backup and component independence matter.
400 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 21.9L turbocharged V12, DSE DCP7310 controller, structural steel base, three-phase 208-600V.
Open Basler controller + PSI V12 engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
400 kW standby · Natural Gas / LPG · Liquid-cooled
375 kW prime natural gas for continuous-duty commercial, CHP, and campus applications needing 24/7 gas-fueled power.
375 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 21.9L V12, DSE DCP7310 controller, structural steel base, three-phase 208-600V.
Open Basler controller + PSI V12 engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
425 kW standby · Natural Gas / LPG · Liquid-cooled
425 kW natural gas standby for large commercial, campus, and data center facilities where gas-fueled backup and component independence matter.
425 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 21.9L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
Open Basler controller + PSI V12 engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
450 kW standby · Natural Gas / LPG · Liquid-cooled
450 kW natural gas standby for large commercial, campus, and data center facilities where gas-fueled backup and component independence matter.
450 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 21.9L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
Open Basler controller + PSI V12 engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
500 kW standby · Natural Gas / LPG · Liquid-cooled
500 kW natural gas standby for large commercial, campus, and data center facilities where gas-fueled backup and component independence matter.
500 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
Open Basler controller + PSI V12 engine + Stamford alternator — prime-rated, no proprietary lock-in. Serviceable by any qualified tech.
500 kW standby · Natural Gas / LPG · Liquid-cooled
450 kW prime natural gas for continuous-duty data center, CHP, and campus applications needing 24/7 gas-fueled power.
450 kW prime-rated natural gas / LP generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
Open Basler controller + PSI high-output V12 engine + Stamford alternator — no proprietary lock-in. Serviceable by any qualified tech.
500 kW standby · Natural Gas · Liquid-cooled
500 kW natural-gas-only standby for data center, campus, and industrial facilities where gas-fueled backup and component independence matter.
500 kW natural-gas-only standby generator from Blue Star Power Systems. PSI 21.9LHO high-output V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V. LP not available.
Open Basler controller + PSI V12 engine + Stamford alternator — no proprietary lock-in. Non-proprietary components serviceable by any qualified tech.
600 kW standby · Natural Gas / LPG · Liquid-cooled
600 kW natural gas standby for data center, campus, and industrial facilities where gas-fueled backup and component independence matter.
600 kW natural gas / LP standby generator from Blue Star Power Systems. PSI 32L V12 turbocharged-aftercooled, DSE DCP7310 controller, three-phase 208-600V.
