Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- Powerhorse s10500id
- Ryobi RY909500
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | Powerhorse s10500id | Ryobi RY909500 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Dual-Fuel | Gasoline |
| Inverter | Yes | No |
| Parallel capable | Yes | No |
| RV ready | No | No |
| Running watts | Winner: Winner: 8300 W | 8000 W |
| Starting watts | Winner: Winner: 10500 W | 9500 W |
| Noise (lower limit) | Winner: Winner: 62 dB | 85 dB |
| Weight | 209.5 lbs | Winner: Winner: 198 lbs |
| Run time @50% load | Winner: Winner: 12 h | 7.5 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 7.13 gal | 6 gal |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 30 x 26.3 x 28.8 | 31 x 29 x 24 |
| Electrical | ||
| Voltage (AC) | 120/240V | 120/240 |
| Voltage (DC) | 5V | Not available |
| GFCI outlets | Yes | Yes |
| Covered outlets | Yes | Yes |
| Automatic Voltage Regulation | Yes | Yes |
| THD | <3% % | <20% % |
| Engine | ||
| Engine | 457 cc OHV 4-stroke | 500 cc OHV 4-stroke |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Recoil |
| Warranty | ||
| Warranty | 2 years | 3 years |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 8300 W | 8000 W |
| Starting watts | 10500 W | 9500 W |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 12 h | 7.5 h |
| Run time @25% load | Not available | Not available |
| Propane | Not available | Not available |
| Running watts | 7500 W | Not available |
| Starting watts | 9450 W | Not available |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 6 h | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | false |
| Compliance | EPA, ANSI/PGMA G300-2023 | EPA |
| Security | Not available | Not available |
| Spark arrestor | Yes | Yes |
| Neutral | true | Bonded to frame |
| UPC | 840321764003 | 46396058553 |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 8300 | 8000 |
| Running Watts (Propane) | 7500 | Not available |
| Starting Watts (Gasoline) | 10500 | 9500 |
| Starting Watts (Propane) | 9450 | Not available |
| Runtime @ 50% Load (Gasoline) | 12 | 7.5 |
| Runtime @ 50% Load (Propane) | 6 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (L5-20R) GFCI; 1x 120/240V 30A (L14-30R); 1x 120/240V 50A (14-50R); 1x 120/240V 50A (10-50R) | 2x Duplex 120V 20A (5-20R) GFCI1x 120/240V 30A (L14-30R) |
| Electrical & power | ||
| Frequency | 60 | 60 |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | 500 cc OHV 4-stroke |
| Engine Displacement | 457 | 500 |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 12 | 7.5 |
| Runtime @ 50% Load (Propane) | 6 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection | Low oil and overload protection |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Starting Components | Recoil, Electric, Remote | Not available |
| Included Accessories | Funnel, tool kit, key fob, propane hose, and battery | Oil and wheel kit |
| Warranty & identification | ||
| Commercial Warranty | Not available | 3 |
| Additional specs | ||
| Summary | The Powerhorse s10500id is a dual-fuel inverter generator delivering 10,500 surge watts and 8,300 rated watts, suitable for emergency home backup, RVs, and worksites. | The Ryobi RY909500 is a 9500W Portable Gas Generator featuring a 500cc OHV engine, delivering 8000 running watts and 9500 starting watts. It offers a 7.5-hour runtime at 50% load, making it ideal for storm backup and jobsite use. |
- Most PowerfulPowerhorse s10500id8300W running
- QuietestPowerhorse s10500id62 dB
- Longest RuntimePowerhorse s10500id12h at 50% load
Where to buy
Prices can change. We update these automatically.
Powerhorse s10500id
Store links
No links yet.
Ryobi RY909500
Store links
No links yet.
Disclosure: Some links may be affiliate links. Specs and comparisons are never hidden.