SPC Diagram
SPC Diagram – Patent Pending
  • Long-Term Disaster Resistant Electric Power
  • Shielded from Electromagnetic Pulse (EMP) per MIL-188-125
  • No Poisonous Carbon Monoxide Fumes in building
  • Cannot be stolen like Portable Generators
  • No Threat of Fire or Explosion in Building
  • No Home Owner Insurance Violations
  • No Noise Or Vibration in Building
  • Cool Fuel from Ground Contact
  • Resists 180 mph winds even when empty
  • Resists Damage From Flying Debris
  • 30-Year Warranty
SPC Exterior Controls - Patent Pending
SPC Exterior Controls – Patent Pending


The SPC is a disaster resistant diesel generator and tank EMP shielded to MIL-STD-188-125A:” High Altitude Electromagnetic Pulse (HEMP) Protection for Ground-Based C4I Facilities Performing Critical, Time-Urgent Missions Part 1: Fixed Facilities” 17 July 1998. The SPC was designed for Mission Critical Facilities, medical facilities, homes and businesses for long-term electric power durations as a result of an EMP attack and other disasters. The SPC is composed of a steel tank with a special compartment to accept diesel generators mounted inside the EMP shielded housing. The SPC does not require excavation. It sits on the ground on a concrete slab or wooden deck. Unlike conventional electric generating plants, the SPC will operate during and after hurricanes, tornadoes, civil unrest, and EMP events.

Generators range in size from 14 KW to 200 KW and all are slow speed 1800 RPM industrial water cooled-turbocharged generators with a service life of 25,000 hours on diesel engines and 15,000 hrs on generator heads. Fuel tanks sizes are 1,100, 3,000, 6000, and 10,000 gallons. The diesel generators have a fuel pump to draw fuel from above or underground storage tanks. The SPC is shipped in one piece and can be installed in one day.

In disaster situations diesel generators are the best power source even though they are much more expensive than gasoline and propane generators. Diesel engines burn 1/3 less fuel than gasoline and propane generators. Also, diesel is not flammable as a Class II fuel. After a disaster, people can forage to find diesel fuel and refuel without special skills or equipment, unlike propane. Diesel engines are also easy to service and usually have the dip stick, oil fill, air filter, fuel filter, etc. on one side making service easy.

SPC Interior Cutaway
SPC Interior Cutaway – Patent Pending


SPC Dimensions - Single Wall
SPC Dimensions – Single Walls – Patent Pending

The problem with conventional generators is 1) they are portable and therefore prone to theft during disaster situations. 2) Portable generators have very small short-term fuel tanks and can only provide power for a matter of hours. 3) Conventional generators are usually placed too close to the building or home and carbon monoxide fumes are drawn into the house. 4) Storing more than 5 gallons of fuel in any garage usually voids the home owner’s insurance and violates local fire department standards 5) Conventional generators are usually 3600 rpm generators and therefore make too much noise and have a short service life. 6) conventional generators are not designed to resist any type of flying debris. 7) conventional generators are not large enough to power most homes, especially if the home has central air conditioning. 8) conventional generators have absolutely no EMP shielding. 9) Conventional generators are usually normally aspirated, not turbocharged, so they struggle at higher elevations and burn too much fuel, 10) conventional above ground round tanks are usually not allowed in residential areas and often roll over during high winds if not secured properly to a concrete pad. 11) long-term diesel storage requires a circulating pump and filter to keep the diesel potent.

SPC Primary Tank
SPC Primary Tank – Patent Pending


SPC Secondary Tank
SPC Secondary Tank – Patent Pending

Secondary Containment is the secondary or outer tank and has a volume of at least 110% of the inner or primary tank. It is a separate tank designed to contain any leaks in the inner or primary tank. The primary tank of the SPC can be lifted out for repair using the lifting ears leaving the secondary tank in place. This option is usually only needed when the SPC is located within city limits or close to a lake or stream. A leak detection device is placed between the two tanks to detect leaks.

SPC Leak Detection
SPC Leak Detections – Patent Pending


SPC Dimensions - Double Wall
SPC Dimensions – Double Walls – Patent Pending


  1. Steel Housing shielded to MIL-188-125, access door, EMP shielded gaskets to the required decibel levels of the Mil Spec, air blower for cooling and combustion air. Air ducts and access doors are EMP shielded to the MIL-188-125, single wall fuel tank is integral with the SPC depending on the generator size. Secondary Containment (S.C.) is available in all sizes for those locations within city limits.
  2. 14 KW to 200 KW slow speed 1800 RPM industrial diesel generator water cooled. Diesel generators have a 25,000-hour service life when operating outside in the open. When operating inside the generator housing with filtered air, this minimum life is extended greatly. Generator heads have a 15,000 hr. service life approximately.
  3. Cathodic protection system for corrosion.
  4. Diesel fuel circulating pump mounted inside the SPC.
  5. Air intake washable filter system EMP shielded to MIL-STD-188-125 accessible through the intake and outlet air duct hoods.
  6. Air outlet for diesel exhaust and cooling air EMP shielded to MIL-STD-188-125
  7. Carbon dioxide tank, valve gages connected to fuel tank.
  8. 30-year
  9. BLACK OPS CURTAINS 200 ft2 to cover windows of building at night.
  10. Wall mounted 200 amp Manual Load Transfer Switch allowing user to choose one of two power sources with one lever.
  11. Operators Manual


  1. Generators and engines are new and designed for 24/7 operation.
  2. All generators engines are 1800 RPM and water cooled
  3. No generators or generator engines are refurbished
  4. All generators are brushless
  5. No generator or generator engines have been renamed
  6. All SPC’s have a sound level of approximately 68 dB@ 21 ft.
  7. All SPC’s are new
  8. All generators and engines have blade fuses, no glass fuses.
  9. SPC’s are shipped with 100 gallons of diesel fuel, antifreeze and oil
  10. All SPCs are shipped on open bed trucks and must be off-loaded by crane.
  11. Concrete pads for the SPC must be fully cured.
  12. All SPC units are designed to meet or exceed 40 CFR 112 -Protection of Environment- Oil Pollution Prevention, UL 142 -Standard for Steel Aboveground Tanks for Flammable and Combustible Liquids, NFPA 30 – Flammable and Combustible Liquids Code, MIL-C-19902 -Caps, vent, fuel storage tank, API-651– Cathodic Protection of Above Ground Petroleum Tanks

Historical Overview

SPC with Wooden Deck
SPC with Wooden Deck

Portable gasoline and diesel generators pose significant health dangers when used near the home. Carbon monoxide poisoning is the number one cause of accidental poisoning in the U.S. During the past decade many people were hospitalized for breathing carbon monoxide as a result of fuel-powered generators operating either in the basement or in the garage even with the garage door open. Buildings are not airtight. During light or heavy winds, the leeward side of the house creates negative pressure drawing in fumes from a portable generator inside the garage. When kitchen and bathroom exhaust fans operate, negative pressure is created in the building drawing in fumes from the generator. Carbon monoxide fumes are odorless and deadly because they interfere with the human body’s ability to process oxygen. Also during this time period, many people have suffered injuries from fires or explosions as a result of generators operating unsafely. Power lines, solar panels, and wind generators are usually the first structures damaged during high winds, which carry flying debris making these energy sources not dependable during emergency situations. Hurricane Maria hit Puerto Rico on September 26, 2017 and thousands of people were without power for months. The people that used conventional portable generators had to stand watch over the generator 24/7 because intruders were stealing the portable generators. Portable generators have handles and are light enough for one or two people to lift and carry away. The stationary generators that are used in the SPC’s weigh at least 850 lbs. and have no handles and they are mounted behind a lockable access door and the smallest SPC weighs over 4000 lbs. It requires a fork truck to remove the generator from the SPC. The largest threat today is from a high altitude EMP weapon detonated over the center of the United States which would cause the highest loss of life in history. It is this history that created the need to develop the NORAD SPC. NORAD LLC has been engineering and supplying high tech underground and above ground self-sufficient products for over 30 years using modern state-of-the-art computer aided drafting (CAD), computer aided engineering (CAE), and Finite Element Analysis (FEA).


Between 2007 and 2017 FEMA issued 1,344 major disaster declarations for territories in the United States. This has averaged more than 11 major disasters each month affecting millions of people. Since 2000 the number and severity of disasters has risen, possibly due to global warming. The aftermath of disasters such as earthquakes, tornadoes, blackouts, fires, and hurricanes have created tremendous hardships on these people who were forced to live without electrical power for long periods of time.

Without electrical power:

There is no running water because water pumps require electricity.

There are no operable toilets, sinks, or showers because there is no running water.

There is no way of using heating furnaces because they require electricity to fire burners and operate blowers. Refrigerators and freezers also will not work.

There are no lights to allow normal living in the nighttime. Common flashlights and camping lights are only able to operate for a matter of hours.

Driving is extremely dangerous because traffic lights may not be operating. If the roads are free of fallen debris, and it is possible to drive to a fuel station, there is no way of getting fuel out of the ground because fuel pumps require electricity. So, it is not always possible to just drive over to the next town and get the necessary supplies.

The traditional portable generator placed outside the building is not weatherproof and not designed to resist fallen or flying debris. If it survives the disaster, it is not designed to operate for more than a few hours because the fuel tank is so small. If it operates inside, it often creates severe problems due to exhaust fumes, heat, vibration, noise, and overheating. Common portable generators are often stolen because they are so portable.

Power and Flying Debris

Rebuilding after disasters has been severely hampered by lack of electrical power. The buildings where power is available, are the first to get rebuilt, simply because electrical power is available making it possible to operate construction tools and equipment. The SPC is designed for 180 mph winds when empty and much higher with fuel in the tank. In tornado zones, it is recommended that the S.C.U.P.P. (Self-Contained Underground Power Plant) be considered to prevent all damage that can be caused from flying debris from tornadoes.

Cathodic Corrosion Protection System

Steel without corrosion protection lose 2 to 5% of its strength each year. The steel corrodes and weakens. A regular epoxy coating only slows down the corrosion process. The NORAD SPC’s use a dielectric (electrically insulating) epoxy coating coupled to a cathodic protection system with anodes which directs the electrical corrosion process to the anodes and stops the corrosion process on the SPC. This results in a constant pressure rating over the warranty period.

Air Manifolds

Air for combustion and cooling enters through the air intake hood on the generator access door and is exhausted through the air outlet hood on the generator housing. The generator housing access door has an external hinge to service the generator.

Long-Term Diesel Storage

The key to storing diesel for long periods is fourfold:

  1. Low Temperature

The SPC sitting on the concrete slab has significant surface area in contact with the cool concrete slab it rests on which will lower the temperature of the stored fuel approximately 20 deg. F. below average ambient temperature which is important to long-term fuel storage. Rigid foam insulation can also be bonded to the SPC roof to reduce the heating effect of the sun on the roof of the SPC in tropical climates.

  1. Diesel Additives
    1. Diesel emulsifier additives are really algicides which kill bacterial and fungal organisms that grow on the water in the diesel fuel. Add emulsifiers according to the diesel volume stored.
    2. Diesel Anti-Gel – Untreated Diesel fuel gels at 15 deg. F. The gel temperature can be reduced to -65 deg. F. by adding approximately 1 gallon of diesel anti-gel to each 1000 gallons of diesel during filling.


  1. Diesel Tank Circulation

Diesel fuel needs to be circulated and filtered in the diesel tank once each month. The SPC is supplied with a circulating pump with a water separator to remove water and a filter to remove bacteria and fungus. This filter system is mounted on the inside wall of the generator housing allowing the SPC to store diesel fuel for approximately 10 years. Conventional above ground tanks are usually round because that tank shape is so cheap to manufacture but it provides no contact with the ground to cool the diesel fuel. This is one factor limiting storage of most diesel fuels to one or two years.


  1. Carbon Dioxide

Oxidation on the fuel level surface can be prevented by maintaining a carbon dioxide layer on top of the fuel layer. This is accomplished by injecting carbon dioxide into the space between the top of the tank and the fuel level layer. Carbon dioxide as a gas is heavier than air will lower as the fuel layer lowers.

Air Blower

Cooling and combustion air is supplied by a 240-volt high-pressure blower producing cooling and combustion air sized for the generator. The incoming air is filtered by a common washable filter tray. The blower has an average life of 10,000 hours. It is activated 10 seconds after the generator starts.


During very heavy snows, the air inlet, and air outlet hoods may need to be cleared before starting. Once the generator is operating, the moving air will create “rabbit holes” in the snow as it accumulates allowing normal operation of the generator. Should either air manifold become blocked, the generator will overheat and automatically stop before damage results.


The SPC MUST be installed at least 2 feet above the 100-year flood plain. FEMA flood plain maps and/or a local surveyor can determine this level.

Generator Exhaust

The tube axial blower draws air in past the EMP filter and washable air filter and then across the engine, muffler, and radiator and then past the EMP vent and the outlet hood on the side of the SPC.

Automatic Off

The generator is equipped with a thermal switch, which will turn the generator off when it exceeds its maximum operating temperature. This may happen as a result of the blowers malfunctioning, low oil level, or if the air inlet/outlet manifolds becoming clogged.


Air manifolds – Make sure that the air manifolds and insect screens are clear from animal nests, bee nests, grass, snow, mud, etc.

Fuel – Use diesel anti-gel additive (or No. 1 diesel) and anti-bacterial additive as necessary.

Starting – Start the generator each month and run for a least 15 minutes.

Check the diesel tank visually for leaks.

Check oil level.

Check generator air filter.

Replace the fuel filter as required based on engines owner’s manual.

Check water level of battery.

Turn on the fuel circulating pump mounted on the wall next to the generator and operate for 15 minutes each month.

Operating Capacity

To determine the size generator required, add up all the running watts of all appliances that are expected to start and run at the same time. Electric motors require 2 to 3 times the name plate wattages created during the 1- to 2 second starting surge. If the SPC is intended for residential use, the governing appliances are usually the well water pump, refrigerator, and furnace. The battery bank option eliminates the surge requirement and allows the electrical needs to be met with the generator operating only 8-12 hours per day. Most homes with a 3000 ft2 of floor area and no central air conditioning usually require a 21 KW generator usually operating 12-16 hrs/day. Homes with a 3000 ft2 floor area that have a 4-6-ton central air conditioner usually require a 30-40 KW generator operating 12-16 hrs/day.

Equipment Running Watts Starting Watts
Clothes Washer 1150 3450
Coffee Maker 1750 1750
Dishwasher no heat drying 700 2125
Electric Range 6 element 1500 1500
8 element 2125 2125
Furnace Blower 1/8 HP 300 800
1/6 HP 500 1250
1/4 HP 600 1600
1/3 HP 700 2125
1/2 HP 875 2350
Light Bulb (125W) 125 125
Oven 6000 6000
Radio 50-200 50-200
Refrigerator or freezer 800 3125
Shelter 45 Amp Bat charger 600 600
Television -color 300 300
Toaster 2 slice 1050 1050
Vacuum Cleaner 600 1800
Water Well Pump 1/3 HP 800 2125
1/2 HP 1050 3200


Conventional generators are manufactured with electronics in the ignition and fuel delivery system in the engine. This makes the engine vulnerable to functional damage from an EMP. The misconceptions about aluminum foil and various screens to form Faraday Cages covering generators DO NOT shield all the frequencies to the required decibel level of MIL-188-125 to protect the generator engine from functional damage. Any device not shielded to MIL-188-125 is not EMP shielded. There is no other standard. The SPC generator housing, access door, incoming and outgoing air, pipe penetrations, and cable penetrations are EMP shielded to MIL-STD-188-125A:” High Altitude Electromagnetic Pulse (HEMP) Protection for Ground-Based C4I Facilities Performing Critical, Time-Urgent Missions Part 1: Fixed Facilities” 17 July 1998. The air ducts are EMP shielded to allow air to pass into and out of the structure but blocks all the EMP frequencies to the proper decibel level from entering the SPC which could damage the electronics in the diesel engine. All POE’s (Points Of Entry) in the generator housing are shielded to exceed the minimum required shielding effectiveness of MIL-STD-188-125.

MAGNETIC 10.1 KHz 20 dB
100 KHz 38 dB
1 MHz 58 dB
10.15 MHz 85 dB
MIL STD 188-125
MIL STD 188-125 – Patent Pending


In order for the SPC to supply power to a home or office after an EMP event, conventional electrical wiring to the powered structure, cannot be used. If the power from the SPC is connected to a conventional circuit breaker panel which is connected to the local power grid, it is vulnerable to functional damage caused by an EMP. The overhead and underground power lines longer than one mile collect EMP which is transferred to the circuit breaker panel and to anything electrically connected to it. A conventional automatic transfer switch can NOT be used. The best way to protect the SPC from EMP is to use a special 200 amp Manual Load Transfer Switch which has a large space between contacts to prevent EMP arcing. This will allow choosing which source of power the house or structure is powered from. This also prevents generator power from being input into the local power grid where electrical service people might be working on the power lines.

Shipping and Installation

The SPC is shipped in one piece by common carrier open bed and off-loaded by crane into position on to the customer’s concrete pad, precast pad, or wooden deck. Power from the SPC to the house is usually by an underground conduit to the building circuit breaker panel. The SPC has the same configuration shape as an air conditioner and usually poses no problems for local covenants like above ground round shop diesel tanks. The installation of the SPC, allowing people to Shelter In Place (SIP) falls under the US Second Amendment Rights, the Right to Bear Arms for protection. An earthquake, tornado, hurricane, power outage, and an EMP event are some of the events considered a threat by the US Government specified in the NATIONAL PLANNING SCENARIOS 2012, prepared for the US Department of Homeland Security. Home Owner’s Associations and local building officials have no sovereign immunity in matters of civil rights which are heard only in federal courts. In most municipalities, the concrete slab is considered a permanent structure but the wooden deck is not and allows the SPC to fall in the category of temporary emergency personal protection equipment, or a portable generator.


NORAD SHELTER SYSTEMS LLC (NORAD) Warranties that the SPC will not structurally fail for 30 years provided that 1) the structure is not exposed to excessive overpressure 2) The structural parts are not modified 3) The structure is inspected, off-loaded, assembled, and installed in accordance with the company’s installation instructions. 4) the SPC is not subject to flying debris from high winds. The warranty does not apply to the parts and equipment that NORAD does not manufacture. These items are covered by the individual manufacturers. NORAD is continuously improving its product and therefore reserves the right to change any specification without notice. Our liability under this warranty shall be limited to, at our option, repair of the unit, or delivery of a replacement unit to the point of original delivery, or refund of the original purchase price. We shall not be liable for any indirect or consequential damages, labor, or installation costs.