Brew Your Own Juice The Facts About Backup Generators

 Blizzards. Ice Storms. Hurricanes. Floods. New Jersey residents are used to being buffeted by Mother Nature. But  increasingly, it seems, the impact of such storms has lingered long after the  weather front blows through, with hundreds or thousands of residents left in  the dark. Beyond the inconvenience—the loss of modern-day necessities like television and air conditioning—power outages can wreak havoc on condominium residents.  

 According to the Eaton Corporation’s blackout tracker last year in New Jersey 1,535,103 Garden state residents were  affected by 107 outages. The causes of these outages range from extreme weather  to faulty equipment to vehicle accidents. On October 29, an early snowstorm  caused outages for 200,000 people in the River Dell area in Bergen County.  

 In times of emergency, like a power outage due to foul weather or a fire in the  building, certain aspects of many multifamily structures must function  properly; steps must be free and clear so people can use them, and doors to  stairways must function. In larger buildings, common areas, corridors and  elevators usually are illuminated through the power provided by an emergency  generator.  

 “Last year in the United States over 40 million people lost power. Literally  millions and millions of people are affected by power outages,” says Gary Moody of Silent Standby Power Supply LLC, a nationwide distributor of  battery powered generators.“This is nothing new—power goes out all the time—but in the worst-case scenario of power outages, it can be life threatening.”  

 While generators sometimes are required by code in high-rise buildings serviced  by elevators to ensure residents can be evacuated safely—not all condominiums have backup power for any of life’s more mundane services like heat, refrigeration or even lighting.  

 “Generators are very common in co-ops and condos across New Jersey,” says Steve Schanne, president of Broadway Electric Supply Co. in Woodbury. “For some reason, the electric goes out a lot in New Jersey, especially during  snow and rain storms. Our climate is changing. For some reason, we have a lot  more storms and as a result we have a lot more power outages. People in general  don’t want to wait around two or three days without electricity.”  

 Powering Up

 There are two kinds of generators a building’s staff might use in a power outage: stationary sets or portable sets. A  portable generator could be used by the staff of the building during an  emergency or during construction work, if the structure does not have a  stationary set. Portable sets vary widely in quality, and can last anywhere  from four to ten years. The generating capability of stationary sets in  residential buildings can range from 60 kilowatts to 3,000 kilowatts.  

 How long a generator lasts is partly dependent upon how much it is used and how  well it is maintained, adds Omar Mahmoud, owner of Tri-State Electrical & Mechanical in Hawthorne. “The life span of a generator depends on how it was maintained. They should be  checked monthly by the building staff,” he says. “Every month, they should be turned on to make sure they are operational and  every three months they should have a contractor come in and do an oil change  and check the filter. If that maintenance is being properly done, they could  last a minimum of twenty years—keep in mind that it is not used everyday. If it’s not properly maintained, it could cut the life span of the generator in half.”  

 Testing the unit and running it will prevent the gas in it from going bad  prematurely, and will alert maintenance employees to any problems with the  machine. A couple of times per year, a manufacturer’s representative of the generator’s maker should come to the building and thoroughly test the generator.  

 If a generator with an automatic transfer switch is well-maintained, when the  lights go out it will turn on and provide emergency power to certain systems in  the building. Which systems it powers is a question of what is required, and  what residents want.  

 “Our systems can be operated in one of two ways,” says Moody, whose company manufactures a line of battery-powered indoor  generators. “One way is to simply plug in an item or items into it and it doesn’t require any electrical to work. The other way is to have it wired into an  electrical panel and it will automatically turn on when the power goes out.  With our generators, the batteries are the gas tank and they store the energy.”  

 For Life Safety

 How powerful the generator is that a building’s board picks for installation depends upon various factors—some legal, and others, lifestyle-based.  

 On site generators are used primarily for power outages and life safety,” says Mahmoud. “For example, suppose you live in a condo complex that was built over an old  landfill—and this happens a lot in Elizabeth—you’re going to have a lot of methane gas deep in the ground. So what they do is put  in an alarm system, similar to a basic alarm system in your home, to detect  methane areas in the ground. If the methane levels get too high it could cause  an explosion because a certain concentration of it could cause an explosion.  That being said, if that loses power then that system won’t operate, the generator will come on as a life safety device.”  

 Diesel or Gas?

 Stationary emergency generators that are installed in multifamily buildings  typically are either diesel fuel powered units, or natural gas powered units.  Natural gas powered generators are connected by a line to the natural gas  utility’s system. Because of its reliability, natural gas is considered a 100 percent  (uninterruptable) power source for a generator, since the natural gas system is  rarely interrupted.  

 Diesel fuel powered generators need to have surplus fuel on-site in order to  operate. To be ready in the event of an emergency, the building’s staff also must have the generator gassed up. Usually a residential building’s generator will be used for no more than a few days at a time, meaning that  enough fuel to run it for that long will be stored on-site.  

 Stationary standby generators often are located in the basement of a building,  near the furnace room, or in a room specifically created for the generator. In  other cases, these units are situated outside the building on a concrete pad,  near the transformer. Sometimes stationary generators are set up on a building’s roof, and in smaller buildings, the generator sometimes is located in the  garage.  

 A battery-powered indoor generator comes fully charged. The charge is stored in  a bank of batteries and available for immediate and easy use when you need it.  Everything plugged into the unit’s outlets will be powered upon loss of power. With battery-operated generators  there is usually no gas, noise or fumes. These battery systems will not run air  conditioners in condos. Silent Standby Power’s Indoor Generator products retail from $3,000 to $7,500, depending on what  needs power and for what length of time.  

 “Gas generators typically require more maintenance than battery-operated  generators,” says Moody. “With a battery-operated generator there are no moving parts.”  

 These emergency units do not need to be warmed up before reaching full capacity.  Larger, liquid-cooled generators usually have an engine block heater which  keeps the block warm and ready to go. Such generators automatically start if  the utility fails, and automatically switch off when utility power returns.  

 “Generators usually come on automatically,” says Mahmoud. “Usually the way they are manufactured from the factory they have a heater hooked  up to the engine so it will always keep the water temperature warm, and it will  also keep the antifreeze warm so that way they can start right up without any  problems. Usually there is a few seconds of a time delay—about five seconds from the time you lose power to the time the generator kicks  in. But they do not need to be warmed up the way a car needs to be warmed up.”  

 Professional Help

 Perhaps because generators are usually unseen and often unrecognized, the  absolute necessity of them is lost on some residents of multifamily buildings.  While keeping some of a high-rise building’s lights on and its elevators running during a power outage might seem to be a  convenience to some able-bodied people, disabled people and some elderly people  with mobility problems truly need the elevators to work so that they can get  out of the building safely. For some people, having the emergency system in  place can be a lifesaver.  

 Though installing a generator in a multifamily building can be a costly project,  it’s a solution some buildings choose to implement. The power generation needs  required of such a unit also usually are simple. That means in most cases, the  generator will be expected to provide power for common areas, garage doors and  elevators. Sometimes, a building’s generator also will provide power for heat, refrigerators and lights in the  structure’s apartments—but residents will pay a premium for the extras.  

 When planning to install an emergency generator in a residential building, the  building’s board members and staff must first ask the experts how to proceed. Usually,  this means hiring a consulting engineer or an architect to oversee the process,  beginning with a review of the building’s emergency power generation needs. Based upon that evaluation, the engineer  will determine how large the building’s generator should be. Next, the engineer designs the necessary transfer  switches for the generator, as well as a room in the building (or exterior/roof  space) in which to locate the generator.  

 The process includes the designer, as well as a general contractor, an  installing contractor, the condo board, the manufacturer, and the local  distributor who supplies the equipment. Usually, the design consultant will  offer to write up a Request for Proposals document (which describes the  parameters of the generator installation project), and distribute it to  electrical contractors so they can bid on the job. The board may hear the  consultant’s recommendation for which contractor to use for the job, and then the group  will vote and choose the contractor. That general contractor will ensure that  the installation project meets all safety requirements.  

 The laws that govern the use of generators in multifamily communities vary from  place to place. But questions regarding the generator’s operation can include where it will be placed, noise created by the unit, and  the storage of fuel (for diesel generators). Some local building codes require  a generator if a building is above a certain height (for elevators and fire  pumps, for example), while others do not.  

 The architect and installing contractor will work together to determine the  proper size generator, the type of generator and where it is placed. These  determinations could require analysis of the building’s roof structure, ventilation system, the concrete pad’s size and strength, the fuel source for the generator (gas lines or size of  diesel fuel tank), and the fresh air intake for the unit.  

 “There are no potential dangers or risks whatsoever associated with having an  on-site generator as long as it is properly installed,” says Mahmoud. “It’s just like anything else. If it was installed per manufacturer’s recommendations and specifications, it will be safe.”  

 “All co-ops and condos should have generators,” adds Schanne, “It’s worth it alone for security and peace of mind.”     

 Jonathan Barnes is a freelance writer and regular contributor to The New Jersey  Cooperator. Staff Writer Christy Smith-Sloman contributed to this article.

 

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