Battery Equivalents and Replacements

Top 70+ Most Fuel Efficient Power Generators

When comparing power generators, specific fuel efficiency is one of the sometimes neglected features, often disguised in runtime at certain power levels, usually @25%, @50%, or @100% of nominal power with the fuel tank capacity being provided, as well.

We are binging You the list of the most fuel-efficient power generators with their efficiency provided in gallons and liters per kWh at a certain power level with other features provided as well.

champion 100302 w300px

Power Generators Features and Specifications

When looking for a new power generator, there are several important things to look for, including:

- Running and Starting power,

- fuel type, usually gas (gasoline, petrol), propane gas (LPG), natural gas, diesel,

- list of receptacles,

- is generator parallel ready or not,

- is generator inverter generator or not,

- fuel tank capacity,

- runtime on a single fuel tank,

- Carbon Monoxide sensor and other safety features like low-oil shut-off, power ready, overload protection and similar,

- noise levels,

- THD levels, etc.

Fuel efficiency is a very important feature and practically all manufacturers offer this information in the form of runtime at certain power loads and the fuel tank capacity, but they rarely state the specific fuel consumption.

Specific fuel consumption can be calculated using the following formula:

Specific Fuel Consumption = Tank Capacity (gal) / (P (kW) * T(h))

and is given in gal/kWh or liters/kWh.

For example, one of the most efficient power generators is WEN 56380i Portable Inverter Generator (Amazon link, link opens in the new window), which features 3400 Running Watts, 3800 Starting Watts, and 2.2 gallons (~8.32 l) fuel tank, and it can operate 8.5 hours @50% (1700W) of nominal power.

Thus, its specific fuel consumption is:

2.2 gallons / (1.7 kW * 8.5h) = 0.152 gal/kWh = 0.575 l/kWh

when the unit operates at 50% load (1700W).

However, there are several issues with calculating specific fuel consumption in this way:

- internal combustion engines are less efficient when operating at lower power levels. Thus, when comparing two power generators, compare them for the same load percentage (25%, 50%, 100%),

- we didn't calculate specific consumption of propane gas or natural gas, just gasoline,

- 2-stroke internal combustion engines are less fuel-efficient than 4-stroke engines, but they are also simpler and easier to maintain,

- most power generators support the use of gasoline mixed with up to 10% ethanol, but it is often unclear if the information about power generators are given for gasoline without ethanol or with 5% or 10% ethanol,

- in real life power generators don't provide just 25%, or 50% or 100% of their running watts - their loads change, often constantly. Inverter power generators with Eco modes and idle power control can be more efficient than non-inverter units when the load is from time to time 0 (zero) watts or very low.

Depending on the personal needs and requirements, other features are sometimes more important than specific fuel consumption, like THD levels (if You have to power sensitive electronics), noise levels (if You have to operate a power generator in a camp or urban environment), type and number of receptacles, fuel types (in emergencies, gasoline can be scarce, but the propane can be easily stored for longer periods of time), etc.

Thus, specific fuel consumption should be only one of the features when looking for a new power generator.

The following comparison table lists 70+ power generators with their most important features and specifications, specific fuel consumption included (power generators are ordered alphabetically):

Model Running Watts
Starting Watts
Runtime
Noise
Fuel Efficiency
Fuel Tank
Receptacles
A-iPower SUA2000iV 1600W
2000W

4h @100%
7h @50%
58 dB @50%
68 dB @75%

0.171 gal/kWh @100%
0.646 l/kWh @100%
0.196 gal/kWh @50%
0.741 l/kWh @50%
1.1 gal (~4.16 l)
AC: 120V 20A 5-20R, 120V 30A L5-30R
DC: 12V
A-iPower SUA2300iV 1800W
2300W
6.5h @50%
52 dB @25%
58 dB @50%
0.188 gal/kWh @50%
0.71 l/kWh @50%
1.1 gal (~4.16 l) 
AC: 120V 20A 5-20R, 120V 30A L5-30R
DC: 12V 8.3A, USB 5V
A-iPower SUA12000E 9000W
12000 W
9h @50%
78 dB
0.173 gal/kWh @50%
0.653 l/kWh @50%
7 gal (~26.5 l)
AC: 120/240V 50A (14-50R), 120/240V 30A (L14-30R), 4x GFCI 120V 20A (5-20R)
All Power America APGG12000GLC

9000W
12000W

7250W
9500W

10h @50% Gas
76 dB
0.177 gal/kWh @50%
0.672 l/kWh @50%
8 gal (~30.2 l)

AC: 2x 120V 20A 5-20R, L5-30R 30A 120V, 14-50R 50A-120/240V

DC: 12V 8.3A

Briggs & Stratton P2200 1700W
2200W
8h @25%
59 dB @25%
0.294 gal/kWh @25%
1.11 l/kWh @25%
1 gal (~3.8 l)
AC: 20A 120V Duplex
DC: 12V, USB Adapter
Briggs & Stratton P3000 2600W
3000W
10h @25%
58 dB @25%
0.230 gal/kWh @25%
0.87 l/kWh @25%
1.5 gal (~5.7 l)
AC: 20A 120V Quad, 120V 30A L5-30R
DC: 12V, 1x USB
Buffalo Tools Sportsman GEN1000i 800W
1000W
6.3h @50%
56 dB @23 ft
0.438 gal/kWh @50%
1.65 l/kWh @50%
1.1 gal (~4.16 l)

AC: 120V 20A 5-20R

DC: 12V 4A

CAT RP12000E

12000 W
15000 W

11.7 hours @50% 0.188 gal/kWh @50%
0.711 l/kWh @50%
13.2 gal (49.9 l)
AC: 120/240V 50A (14-50R), 120/240V 30A (L14-30R),  2x 120V 30A (L5-30R), 2x GFCI 120V 20A Duplex (5-20R)
DC: 12V 8.3 Amps
Champion 73536i 1700W
2000W
9.5h @25%
53 dB @25%
0.248 gal/kWh @25%
0.936 l/kWh @25%
1 gal (~3.8 l)
AC: 20A 120V Duplex
DC: 12V
Champion 75531i 2800W
3100W
8h @25%
58 dB
0.286 gal/kWh @25%
1.1 l/kWh @25%
1.6 gal (~6 l)
AC: 120V 30A TT-30R, 2x 120V 20A 5-20R
DC: 12V, dual USB adapter 
Champion 76533 3800W
4750W

3420W
4275W

9h @50% Gas
10.5h @50% 20 lbs Propane Tank
68 dB @23 feet
0.2 gal/kWh @50%
0.75 l/kWh @50%
3.4 gal (~12.9 l)
AC: 120V 30A TT-30R, 120V 30A L5-30R, 2x 120V 20A 5-20R
Champion 100111 12000W
15000W
9h @50%
78 dB @23 feet
0.202 gal/kWh @50%
0.763 l/kWh @50%
10.9 gal (~41.2 l)
AC: 120/240V 50A 14-50R, 120/240V 30A L14-30R, 120V 30A L5-30R, 2x GFCI 120V 20A Duplex 5-20R 
Champion 100161 7500W
9375W
8 hours @50%
74 dB, 23 ft
0.2 gal/kWh @50%
0.756 l/kWh @50%
6 gal (~22.7 l)

AC: 120/240V 50A (14-50R), 120/240V 30A (L14-30R), 120V 30A (TT-30R), 2x GFCI 120V 20A Duplex (5-20R)

Champion 100165

7500W
9375W

6750W
8400W

8h @50% Gas
5.5h @50% 20 lbs Propane Tank
74 dB @23 feet

0.2 gal/kWh @50%
0.756 l/kWh @50%
6 gal (~22.7 l) 
AC: 120V 30A L5-30R, 120/240V 30A L14-30R, 2x 120V 20A GFCI 5-20R Duplex
Champion 100231

5500W
6900W

5000W
6250W

9h @50% Gas
6.5h @50% 20 lbs Propane Tank
74 dB @23 feet
0.242 gal/kWh @50%
0.916 l/kWh
6 gal (~22.7 l) 
AC: 120/240V 30A L14-30R, 2x GFCI 120V 20A Duplex 5-20R 
Champion 100263

3100W
3400W

2790W
3060W

7.5h @25% gas
14.5h @25% 20 lbs Propane Tank
59 dB
0.275 gal/kWh @25%
1.04 l/kWh @25%
1.6 gal (~6 l)
AC: 120V 30A TT-30R, 2x 120V 20A 5-20R
DC: 12V, dual USB adapter
Champion 100297

8000W
10000W

7250W
9025W

8h @50% Gas
5h @50% 20 lbs Propane Tank
74 dB @23 ft

0.190 gal/kWh @50%
0.72 l/kWh @50%
6.1 gal (~23.1 l)
AC: 120V 30A L5-30R, 120/240V 30A L14-30R, 2x 120V 20A GFCI 5-20R Duplex 
Champion 100416

8000W
10000W

7200W
9000W

7000W
8750W

12.5h @50% Gas
5h @50% 20 lbs Propane Tank
74 dB @23 ft
0.170 gal/kWh @50%
0.643 l/kWh @50%
8.5 gal (~32.1 l)
AC: 120/240V 30A L14-30R, 120V 30A L5-30R, 2x GFCI 120V 20A Duplex 5-20R
Champion 100519 5000W
6250W
13.5h @25%
69 dB @23feet
0.249 gal/kWh @25%
0.941 l/kWh  @25%
4.2 gal (~15.9 l)
AC: 120/240V 30A L14-30R, 2x GFCI 120V 20A Duplex 5-20R
DC: 12V Automotive
Champion 100574

3500W
4000W

3150W
3600W

14.5h @25% Gas
12h @25% 20 lbs Propane Tank
64 dB @23 feet

0.228 gal/kWh @25%
0.864 l/kWh @25%
2.9 gal (~11 l)
AC: 120V 30A TT-30R, 120V 20A Duplex 5-20R
DC: 12V Automotive
Champion 100692 1700W
2000W
11.5h @25%
53 dB @25%
0.225 gal/kWh @25%
0.851 l/kWh @25%
1.1 gal (~4.16 l)
AC: 20A 120V Duplex
DC: 12V
Champion 200915 1200W
1500W
10h @50%
65 dB @23 feet
0.25 gal/kWh @50%
0.945 l/kWh @50%
1.5 gal (~5.7 l)
AC: 120V 5-20R Duplex
Champion 200988

3500W
4500W

3150W
4500W

14h @25% Gas
12h @25% 20 lbs Propane Tank
61 dB @23 feet
0.188 gal/kWh @25%
0.71 l/kWh @25%
2.3 gal (~8.7 l)

AC: 120V 30A TT-30R, 2x 120V 20A 5-20R

DC: 12V DC Automotive

Champion 201004 7500W
9375W
8h @50% Gas
74 dB @23 feet
0.19 gal/kWh @50%
0.72 l/kWh @50%
5.7 gal (~21.6 l)
AC: 120/240 50A 14-50R, 120/240V 30A L14-30R, 2x GFCI 120V 20A Duplex 5-20R
Coleman CM04101 900W
1000W
8h @50%
58 dB @23 ft
0.277 gal/kWh @50%
1.05 l/kWh @50%
1.0 gal (~3.78 l)
AC: 120V 20A 5-20R
DC: 12V 10A
DuroMax XP4850EH

3850W
4850W

3658W
4608W

~10.4h @50% Gas
~9h @50% 20 lbs Propane Tank
<69 dB
0.198 gal/kWh @50%
0.748 l/kWh @50%
3.96 gal (~15 l)
AC: 120/240V 30A L14-30R, 120V 20A Duplex GFCI
DC: 12V 8.3A Battery
DuroMax XP8500EH

7000W
8500W

6650W
8075W

11.5h @50% Gas
8h @50% 40 lbs Propane Tank
72 dB
0.196 gal/kWh @50%
0.742 l/kWh @50%
7.9 gal (~29.9 l)
AC: 2x 120V 20A 5-20R GFCI Duplex, 120/240V 30A L14-30R
DC: 12V 8A Battery, 2x USB 5.0V (2.1A, 1A)
DuroMax XP12000EH

9500W
12000W

9025W
11400W

8.83h @50% Gas
7.2h @50% 40 lbs Propane Tank
<74 dB
0.198 gal/kWh @50%
0.748 l/kWh @50%
8.3 gal (~31.4 l)
AC: 2x 120V 20A 5-20R, 120V 30A L5-30R, 120/240V 30A L14-30R, 120/240V 50A 14-50R
DC: 12V 8.3A
Firman H08051

8000W
10000W

7250W
9050W

12h @50% Gas
12h @50% 8 gal Propane Tank
74 dB
0.166 gal/kWh @50%
0.63 l/kWh @50%
8.0 gal (~30.2 l)
AC: 2x 5-20R 20A 120V GFCI, 14-50R 50A 120/240V, L14-30R 30A 120V/240V, L5-30R 30A 120V
Firman P01001 1050W
1300W
9.0h @50%
62 dB @50%
0.275 gal/kWh @50%
1.04 l/kWh @50%
1.3 gal (~4.91 l)
AC: 120V 20A 5-20R
Firman W03083 3000W
3300W
9h @25%
58 dB
0.237 gal/kWh @25%
0.9 l/kWh @25%
1.8 gal (~6.8 l)
AC: 120V 20A Duplex 5-20R, 120V 30A TT-30R
DC: 12V 8.3A, USB 5V/2.1A port
Ford FG11050PBE

9000W
11050W

8100W
10050W

10h @50% Gas
-
0.146 gal/kWh @50%
0.554 l/kWh @50%
6.6 gal (~25.0 l)
AC: 2x 5-20R 20A 120V GFCI Duplex, 14-50R 50A-120/240V,  L5-30R 30A 120V
Generac 7117 GP2200i 1700W
2200W
10.75h @25%
7h @50%
?
0.262 gal/kWh @25%
0.993 l/kWh @25%
0.202 gal/kWh @50%
0.762 l/kWh @50%
1.2 gal (~4.54 l)
AC: 20A 120V Duplex
DC: 12V, USB 5V/1.5A
Generac 7127 iQ3500 3000W
3500W
8.9h @50%
14.1 @25%
45* dB
0.195 gal/kWh @50%
0.736 l/kWh @50%
0.246 gal/kWh @25%
0.93 l/kWh @25%
2.6 gal (~9.23 l)
AC: 120V 20A Duplex 5-20R, 120V 30A L5-30R
DC: two USB ports (5V/2.1A, 5V/1A)
Generac 7129 GP3000i 2300W
3000W
4.5h @50%
5.8h @25%
?
0.204 gal/kWh @50%
0.774 l/kWh @50%
0.318 gal/kWh @25%
1.2 l/kWh @25%
1.06 gal (~4 l)
AC: 120V 20A Duplex, 120V 30A L5-30R
DC: two USB ports (5V/2.1A, 5V/1A)
Generac 7676 GP8000E 8000W
10000W
11h @50% Gas
-
0.179 gal/kWh @50%
0.678 l/kWh @50%
7.9 gal (~29.9 l)
AC: 2x 5-20R 20A 120V GFCI Duplex, L14-30R 30A 120V/240V

DC: 12V

Generac 76711 GP1200i 1000W
1200W
5.5h @50%
-
0.291 gal/kWh @50%
1.1 l/kWh @50%
0.8 gal (~3.03 l)
AC: 2x 120V 20A 5-20R
DC: 5V USB (1.0A, 2.1A)
Generac GP3300i 2500W
3300W
4.5h @50%
7h @25%
?
0.188 gal/kWh @50%
0.712 l/kWh
0.242 gal/kWh @25%
0.916 l/kWh @25%
1.06 gal (4 l)
AC: 120V 20A Duplex, 120V 30A L5-30R
DC: two USB ports (5V/2.1A, 5V/1A) 
Honda EB2800i 2500W
2800W
5.2h @100%
11.9h @25%
67 dB @100%
62 dB @25%
0.161 gal/kWh @100%
0.61 l/kWh @100%
0.282 gal/kWh @25%
1.07 l/kWh @25%
2.1 gal (~8 l)
AC: 2x 120V 5-20R Duplex
Honda EB5000 4500W
5000W
7000W (10s max.)
7.1h @100%
10.5h @50%
65 dB @100%
63 dB @50%
0.194 gal/kWh @100%
0.733 l/kWh @100%
0.262 gal/kWh @50%
1.0 l/kWh @50%
6.2 gal (~23.5 l)
AC: 2x 20A 120V GFCI Duplex, 30A 120V L5-30R, 30A 120/240V L14-30R
Honda EB6500 5500W
6500W
7000W (10s max.)
6.4h @100%
9.8h @50%
67 dB @100%
64 dB @50%
0.176 gal/kWh @100%
0.67 l/kWh @100%
0.23 gal/kWh @50%
0.87 l/kWh @50%
6.2 gal (~23.5 l) 
AC: 2x 20A 120V GFCI Duplex, 30A 120V L5-30R, 30A 120/240V L14-30R
Honda EB10000 9000W
10000W
5.4h @100%
7.9h @50%
71 dB @50%
73 dB @100%
0.168 gal/kWh @100%
0.637 l/kWh @100%
0.230 gal/kWh @50%
0.871 l/kWh @50%
8.19 gal (~31 l)
AC: 2x 20A 5-20R 120V GFCI Duplex, L5-30R 30A 120V, L14-30R 30A 120V/240V, 14-50R 50A 120/240V
Honda EG4000 3500W
4000W
10.1h @100%
14.8h @50%
67 dB @100%
66 dB @50%
0.178 gal/kWh @100%
0.673 l/kWh @100%
0.243 gal/kWh @50%
0.92 l/kWh @50%
6.3 gal (~23.8 l)
AC: 2x 20A 120V GFCI Duplex, 30A 120V L5-30R, 30A 120/240V L14-30R
Honda EM6500SX 5500W
6500W
7000W (10s max.)
6.4h @100%
9.8h @50%
66 dB @100%
64 dB @50%
0.176 gal/kWh @100%
0.67 l/kWh @100%
0.23 gal/kWh @50%
0.87 l/kWh @50%
6.2 gal (~23.5 l) 
AC: 2x 20A 120V GFCI Duplex, 30A 120V L5-30R, 30A 120/240V L14-30R
DC: 12V (8.3 A, 100W)
Honda EU1000i (EU1000T1AG) 900W
1000W
3.0h @100%
6.8h @25%
50 dB @100%
42 dB @25%
0.222 gal/kWh @100%
0.84 l/kWh @100%
0.392 gal/kWh @25%
1.48 l/kWh @25%
0.6 gal (~2.27 l)
AC: 2x 120V 20A 5-20R
Honda EU2000i 1600W
2000W
8h @25%
50 dB @25%
0.313 gal/kWh @25%
1.18 l/kWh @25%
1 gal (~3.8 l)
AC: 20A 120V Duplex
DC: 12V
Honda EU2200i 1800W
2200W
3.2h @100%
8.1h @25%
48 dB @25%
57 dB @100%
0.165 gal/kWh @100%
0.623 l/kWh @100%
0.261 gal/kWh @25%
0.985 l/kWh @25%
0.95 gal (~3.6 l)
AC: 20A 120V Duplex
DC: 12V 100W (8.3 Amps)
Honda EU3000IS 2800W
3000W
20h @25%
50 dB @25%
0.242 gal/kWh @25%
0.918 l/kWh @25%
3.4 gal (~12.9 l)
AC: 120V 20A Duplex, 120V 30A L5-30R
Honda EU7000iS 5500W
7000W
6.4h @100%
16h @25%
52 dB @25%
58 dB @100%
0.145 gal/kWh @100%
0.548 l/kWh @100%
0.232 gal/kWh @25%
0.88 l/kWh @25%
5.1 gal (~19.3 gal)
AC: 2x 20A 120V GFCI Duplex, 30A 120V L5-30R, 30A 120/240V L14-30R
Mech Marvels MM2350 1200W
1500W
9h @50%
68 dB
0.277 gal/kWh @50%
1.05 l/kWh @50%
1.5 gal (~5.67 l)

AC: 2x 120V 20A 5-20R

DC: 12V 8A

Powermate PM1200i 1000W
1200W
7h @25%
-
0.457 gal/kWh @25%
1.728 l/kWh @25%
0.8 gal (~3.03 l)
AC: 2x 120V 20A 5-20R
PowerSmart PS50A 900W
1000W
5h @50%
49 dB
0.488 gal/kWh @50%
1.848 l/kWh @50%
1.1 gal (~4.16 l)
AC: 120V 20A 5-20R
Pulsar PG1202S 900W
1200W
5h @50%
-
0.488 gal/kWh @50%
1.848 l/kWh @50%
1.1 gal (~4.16 l)
AC: 2x 120V 20A 5-20R
DC: 12V 8A
Pulsar PG10000B16

8000W
10000W

7000W
9000W

12h @50% Gas
74 dB
0.137 gal/kWh @50%
0.52 l/kWh @50%
6.6 gal (~25 l)
AC: 2x 120V 20A 5-20R Duplex, 120/240V 30A (L14-30R), 120/240V 50A (14-50R)

DC: 12V 8.3A

Ryobi RYi1000 900W
1000W
8h @50%
65 dB
0.166 gal/kwh @50%
0.63 l/kWh @50%
0.6 gal (~2.27 l)

AC: 120V 15A 5-15R

DC: 12V 7.5A

TogoPower GG1000 800W
1000W
6h @50%
?
0.437 gal/kWh @50%
1.65 l/kWh @50%
1.05 gal (~4 l)
AC: 120V 20A 5-20R
WEN 56200i 1600W
2000W
9.4h @25%
51 dB @25%
0.266 gal/kWh @25%
1.0 l/kWh @25%
1 gal (~3.8 l)
AC: 20A 120V Duplex
DC: 12V (8.3 Amps), USB 5V
WEN 56225i 1800W
2250W
6h @50%
53 dB @25%
0.185 gal/kWh @50%
0.7 l/kWh @50%
1 gal (~3.8 l)
AC: 20A 120V Duplex
2x USB 5V
WEN 56235i 1900W
2350W
10.5h @25%
51 dB @25%
0.20 gal/kWh @25%
0.758 l/kWh @25%
1 gal (~3.8 l)
AC: 15A 120V NEMA 5-20R Duplex
DC: 12V, USB 5V (2.1A, 1A)
WEN 56380i 3400W
3800W
8.5h @50%
57 dB
0.152 gal/kWh @50%
0.575 l/kWh @50%
2.2 gal (~8.32 l)
AC: 2x 120V 15A 5-20R, 120V 30A TT-30R
DC: 12V, 5V USB
WEN DF1100T

8300W
11000W

7500W
9500W

8.5h @50% Gas
3h @50% 20lbs Propane Tank
-
0.187 gal/kWh @50%
0.707 l/kWh @50%
6.6 gal (~25 l)
AC: 4x 120V GFCI 5-20R, 120V 30A L5-30R, 120V/240V 50A 14-50R
DC: 12V 8A
Westinghouse iGen2200 1800W
2200W
12h @25%
52 dB @25%
0.222 gal/kWh @25%
0.84 l/kWh @25%
1.2 gal (~4.54 l)
AC: 20A 120V Duplex
2x USB 5V
Westinghouse iGen2600 2200W
2600W
10h @25%
52 dB @25%
0.182 gal/kWh @25%
0.687 l/kWh @25%
1.0 gal (~3.8 l)
AC: 20A 120V Duplex
DC: 12V, 2x USB 5V
Westinghouse iGen4500 3700W
4500W
18h @25%
52 dB @25%
0.204 gal/kWh @25%
0.77 l/kWh @25%
3.4 gal (~12.9 l)
AC: 120V 20A 5-20R Duplex, 120V 30A TT-30R
2x USB 5.0V (2.1, 1.0 A)
Westinghouse WGen3600DF

3600W
4650W

3240W
4180W

18h @25%, 13.5h @50% Gas
10.5h @50% 20 lbs Propane Tank
68 dB
0.167 gal/kWh @50%
0.622 l/kWh @50%
0.247 gal/kWh @25%
0.933 l/kWh @25%
4 gal (~15.1 l)
AC: 120V Duplex 5-20R, 120V 30A TT-30R, 120V 30A L5-30R
Westinghouse WGen9500DF

9500W
12500W

8500W
11200W

17.5h @25% Gas
12h @50% Gas
7h @50% 20(?) lbs Propane Tank
74 dB
0.158 gal/kWh @25%
0.60 l/kWh @25%
0.122 gal/kWh @50%
0.46 l/kWh @50%
6.6 gal (~25 l)
AC: 2x 120V 5–20R GFCI Duplex, 120/240V 30A L14-30R, 120/240V 50A 14–50R
DC: 12V
Westinghouse WH2200iXLT 1800W
2200W
13h @25%
52 dB @25%
0.222 gal/kWh @25%
0.84 l/kWh @25%
1.3 gal (~4.9 l)
AC: 20A 120V Duplex
DC: 12V
Yamaha EF1000iS 900W
1000W
11.9h @25%
47 dB
0.246 gal/kWh @25%
0.932 l/kWh @25%
0.66 gal (~2.5 l)
AC: 2x 120V 15A 5-15R
DC: 12V 8A
Yamaha EF2000iSv2 1600W
2000W
10.5h @25%
51.5 dB @25%
0.262 gal/kWh @25%
1.0 l/kWh @25%
1.1 gal (~ 4.16 l)
AC: 120V Duplex
DC: 12V 8A
Yamaha EF2400iSHC 2000W
2400W
8.6h @25%
53 dB @25%
0.37 gal/kWh @25%
1.4 l/kWh @25%
1.59 gal (6.0 l)
AC: 120V Duplex
DC: 12V 8A

Note: Amazon affiliate links (the 'Model' column) open in the new windows, feel free to check them for the most up-to-date offers and prices. Also, we have really tried to verify every single bit of information in this chart and article (and in the end - our website), but things change over time without prior notice.

Of course, there are many other power generators on the market as well.

honda eu2200i mAs one can see, specific fuel efficiency ranges, depending on the load percentage, but the best units feature fuel consumption less than 0.2 gal/kWh (~0.76 l/kWh) almost regardless of their load.

But, such units often come with a very nice price tag, or they can use only gasoline and similar.

Again, when looking for a new power generator, specific fuel consumption is an important feature, just be sure to check other features as well, according to your own needs and preferences.

Note: when your new power generator arrives, be sure to thoroughly read the documentation that came with the unit in order to get accustomed to your new unit. And whatever You do, stay safe!

Amazon Search:

- Inverter Generator

- Portable Inverter Generator

- 2000W Inverter Generator

Note: Amazon links open in the new windows, feel free to check them for the most up-to-date offers and prices.