Before buying systems, make sure you have the right power and generator size. Generators can range in size from very small to very large. The five to 50 kW range can be used for homes and trailers. On the larger scale, wattage rates from 50 kW to over three megawatts. A good start from industry leader, Cummins Power Generation, is establishing project parameters. To do this, you must first determine minimum generator load and capacity. Then you must decide the maximum allowable step voltage dip.
Cummins says, “As you reduce the maximum allowable step voltage dip during initial startup, when loads cycle under automatic controls or when high peak loads operate, you need to increase the size of the generator set specified. Choosing lower allowable voltage dip requires a larger generator set.” Next, you must decide on the maximum allowable step frequency dip. As you reduce the maximum allowable dip, you need a larger generator. Also consider where you are working. The size of your generator must go up as altitude and temperature increases.
Additionally, steps include taking into consideration the duty cycle or how and when your generator will be working (on standby, all the time, or utility paralleling). What kind of fuel will you be using? Most of the time, generators using gas or LP must be a bigger size. Also, consider the frequency and voltage—voltage selection usually depends on your frequency needs.
Make sure you also keep track of your power usage in a consumption chart. This will help you differentiate between starting and running wattages. Also how each project can differ in power needs.
More details can be found through Cummins.
Natural Gas versus Diesel Engine Generators
Diesel engines have these positives:
- Diesel engines are now much quieter and require less maintenance than gas engines.
- They are reliable.
- There is no sparking required because the diesel fuel auto-ignites. This lowers maintenance costs.
- Fuel costs in production is 30-50% lower than gas engines.
- Diesel units burn cooler than gas and therefore have a longer shelf life.
Diesel powered generators can be used on the smaller scale like homes and larger scales like corporate facilities.
Natural gas engines are a better option because:
- they burn cleaner
- are in high demand
- perform well under intermittent load conditions
- can meet almost any power demand
- increased energy efficiency
- produce lower pollution than diesel
Once you pick the right generator for you, start to see the benefits such as no unforeseen power outages, no shutdowns due to over capacity, guaranteed performance, increased system life span, more personnel safety, and a smaller chance of damage to the system or personnel.
Depco offers many programs to help you make the right decision as well as create security. For instance, Depco offers a way to get rid of your old equipment and get new state-of-art equipment. You can buy and/or sell equipment with Depco.
