Tag Archive: fossil fuels

NFPA 704 CNG Placard Sign on Fence – West Jordan, Utah

NFPA 704 CNG Placard Sign on Fence - West Jordan, Utah

An NFPA CNG Placard Sign on a fence in West Jordan, Utah, next to a CNG filling station.

The NFPA (National Fire Protection Association) rating sign for CNG (Compressed Natural Gas) follows the NFPA 704 Hazard Diamond system, which provides crucial safety information for emergency responders. This diamond-shaped sign is divided into four colored sections, each indicating a different hazard category:

  1. Blue (Health Hazard) – Typically rated 1 for CNG, indicating a slight hazard under normal conditions, but inhalation of high concentrations can cause dizziness or asphyxiation.
  2. Red (Flammability Hazard) – Rated 4, the highest level, as CNG is extremely flammable and can ignite easily in air.
  3. Yellow (Instability/Reactivity Hazard) – Rated 0, meaning CNG is stable under normal conditions and does not readily react with other chemicals.
  4. White (Special Hazard) – Usually left blank for CNG, as it does not have significant corrosive or radiation-related dangers.

These signs are commonly displayed on CNG storage tanks, fueling stations, and transport vehicles to warn of the gas’s high flammability and ensure proper handling during emergencies. Proper ventilation, leak detection, and adherence to safety protocols are essential when working with or around CNG.

Coal Loading and Storage at Power Plant – Utah

Coal Loading and Storage at Power Plant - Utah

A coal loading and storage facility at a coal-fired power plant in central Utah.

A coal loading and storage facility at a coal power plant plays a crucial role in managing the supply of coal used to generate electricity. These facilities are designed to efficiently handle large quantities of coal, ensuring a consistent supply to the plant’s boilers. Coal arrives at the facility via railcars, trucks, or conveyor systems and is stored in large piles or silos before being transported to the power plant’s combustion systems. Storage areas are often equipped with conveyor belts, hoppers, and stackers to streamline the loading, unloading, and sorting processes. To prevent environmental contamination and ensure safety, modern facilities implement dust control measures, containment systems, and sometimes even covered storage areas.

The storage facility ensures that coal is readily available even during disruptions in the supply chain, such as transportation delays. It also allows for blending different grades of coal to optimize combustion efficiency and reduce emissions. These facilities are integral to the operational reliability of coal power plants, ensuring uninterrupted electricity production while adhering to regulatory standards for environmental protection and workplace safety.

Coal power has historically been a significant source of energy in Utah, playing a crucial role in the state’s economy and energy production. As of recent years, coal-fired power plants have accounted for a substantial portion of Utah’s electricity generation, though this share is gradually declining as renewable energy sources grow in prominence. Utah’s coal reserves, primarily located in the Book Cliffs and Wasatch Plateau regions, have supported a robust mining industry for decades, providing fuel for both in-state power plants and out-of-state markets.

Major coal-fired power plants in Utah include Hunter Power Plant near Castle Dale and Huntington Power Plant near Huntington, both operated by PacifiCorp’s Rocky Mountain Power. These plants generate reliable baseload electricity, but they also contribute to air pollution and greenhouse gas emissions, prompting increasing scrutiny and regulatory pressure. In response to environmental concerns and market trends, Utah is transitioning toward cleaner energy sources like natural gas, wind, and solar. Nevertheless, coal remains a key part of the state’s energy mix, supporting jobs and providing affordable electricity, even as its role diminishes in favor of a more sustainable energy future.

Compressed Natural Gas Pump – Salt Lake – Utah

Compressed Natural Gas Pump - Salt Lake - Utah


A compressed natural gas (CNG) gas pump, located in the Salt Lake Valley of northern Utah, along the Wasatch Front.

A natural gas fueling station is specifically designed to dispense Compressed Natural Gas (CNG), a cleaner and more environmentally friendly alternative to gasoline or diesel. These pumps are commonly found at public refueling stations, fleet depots, or private facilities catering to vehicles powered by natural gas, such as buses, trucks, and passenger cars. CNG is stored under high pressure in specially designed tanks and is dispensed through nozzles that securely connect to a vehicle’s fueling port. Modern CNG pumps are equipped with safety features such as pressure regulators, automatic shutoff systems, and monitoring devices to ensure efficient and secure fueling.

CNG gas pumps support efforts to reduce greenhouse gas emissions and improve air quality by providing a low-emission fuel option. Vehicles running on CNG produce significantly less carbon dioxide, nitrogen oxides, and particulate matter compared to traditional fuels. Additionally, CNG is often more cost-effective, providing savings for both individual drivers and large fleets. These pumps play a crucial role in expanding the adoption of natural gas vehicles (NGVs) and promoting sustainable transportation solutions.