What Size of Generator Do I Need?
Kohler ERES Series
Kohler ERES generators are available in 40 to 125kW capacity, and can be run on either natural gas or propane (LP). Built on Kohler’s long history and vast experience producing emergency generators and backup power devices, these ERES generators are suitable for large residential and small commercial applications.
- Kohler Co. provides one-source responsibility for the generating system and accessories.
- Prototype-tested, factory-built ,and production-tested.
- Accepts rated load in one step.
- Kohler 60 Hz generator set engines are certified by the Environmental Protection Agency (EPA) to conform to the New Source Performance Standard (NSPS) for stationary spark-ignited emissions.
- A one-year limited warranty covers all systems and components. Two- and five-year extended warranties are also available.
- Quick-ship (QS) models with selected features and a five-year basic warranty are available.
What Size of Generator Do I Need?
Before purchasing a residential backup generator it is important to evaluate your emergency power needs. Kohler’s easy home generator sizing calculator will assist you in determining your standby power requirements, and help you understand what to expect from a home generator.
Kohler Generator Sizing Calculator
Why Choose Kohler?
Dependable Utility and Solar Grid-Tie Back-up Power
When utility power goes out it is not just inconvenient, it can also impact your comfort and security, and may even cost you money. With a Kohler backup generator you can have dependable protection to keep your home or small business running smoothly during unexpected power outages, for days or even weeks.
Reliable Backup Power for Solar Off-Grid and Remote Locations
At Fire Mountain Solar we rely on standby generators – to keep our office running smoothly when there’s not enough solar or wind power to do so – and to provide many of our off-grid customers with the power they need. This type of service puts a generator to the test, because it can require frequent and extended run times. Reliability, dependability and ease of operation are critical in these situations, particularly when the system is in a remote location.
That’s why Kohler is the only brand of backup generator that we sell. Personally and professionally we have come to trust and depend on Kohler, because Kohler generators have proven themselves tough enough to last even under the most demanding conditions. And in those rare instances where we have needed to have a generator serviced, Kohler, and the wonderful folks at our local master distributor – Pacific Power Generation – have proven themselves again. We have complete and total confidence when we recommend Kohler generators.
Features
All Kohler ERES gas generators are liquid cooled, 120/240 volt, 60 hertz, Single Phase, UL-2200 listed, and include:
- Mounted Line Circuit Breaker
- Digital Controller
- Battery Charger
- Engine Starting Battery
| Kohler ERES Gas Generators | ||
|---|---|---|
| Item | Description | Price |
| 40ERES | 39 kW, 135 amps, 69 dB(A) | Please call* |
| 45ERES | 44/41 kW, 153/142 amps, 69 dB(A) | Please call* |
| 50ERES | 46 kW, 160 amps, 68 dB(A) | Please call* |
| 60ERES | 60 kW, 208 amps, 69 dB(A) | Please call* |
| 80ERES | 80 kW, 278 amps, 70 dB(A) | Please call* |
| 100ERES | 95/90 kW, 330/312 amps, 71 dB(A) | Please call* |
*Special contractor discounts available for installers.





















