SOLAR GAS TURBINE - OPEN CYCLE
Model
Power (HP)
Power (MW)
Efficiency (%)
Saturn 20
1,590
1.2
25
Centaur 40
4,700
3.5
28
Centaur 50
6,130
4.6
29
Taurus 60
7,700
5.7
30
Taurus 70
10,915
8.1
34
Mars 90
13,220
9.9
32
Mars 100
15,900
11.9
32
Titan 120
20,500
15.3
35
Titan 250
30,000
22.4
40

ROLLS ROYCE / SIEMENS GAS TURBINE
Model
Power (HP)
Power (MW)
Efficiency (%)
501-KC5
5,500
4.1
30
501-KC7

7,200
5.4
32
Avon 200 - 2648
21,923
16.3
31
Avon 200 - 2656
22,807
17
32
RB211 GT62 DLE
41,084
30.6
39
Trent 60
72,679
54.2
44
Trent 60 – ISI – Water Injection
82,877
61.8
40

WAUKESHA GAS RECIPROCATING ENGINES
Model
Power (HP)
Power (MW)
Efficiency (%)
P9390GSI
1,980
1.5
33
P48 GL
1,065
0.8
37
AT 27 GL
3,130
2.3
38

ELECTRIC MOTOR EFFICIENCY GUIDELINE
Model
Power (kW)
Efficiency (%)
Small Electric Motor
3
80
Large Electric Motor
> 300
94
Large Electric Motor - VSD
> 300

91

TYPICAL DRIVEN EQUIPMENT PERFORMANCE
GAS COMPRESSORS
OPERATING EFFICIENCY
Centrifugal
70%
Screw
75%
Reciprocating
80%
PUMPS

Centrifugal
65%
Reciprocating
85%
Rotary
75%

TYPICAL TURNDOWN PERFORMANCE
LOAD
100%
75%
50%
40%
Efficiency of Gas Turbine (3MW)
28%
26%
21%
18%
Efficiency of Gas Recip Engine (2MW)
38%
36%
32%
30%
Motor (300kW)
94%
94%
93%
92%

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