Coal-fired electricity generating capacity in the United States is retiring, as tighter air emission standards and decreased cost-competitiveness relative to other power resources make coal-fired power plants less economical. From 2011 to mid-2020, 95 gigawatts (GW) of coal capacity was closed or switched to another fuel and another 25 GW is slated to shut down by 2025, based on information power plant operators reported to the U.S. Energy Information Administration (EIA). The closures will decrease the capacity of the U.S. coal fleet to less than 200 GW, more than one-third lower than its peak of 314 GW in 2011. As the coal-fired fleet is retired and remaining plants are utilized less, plant owners are evaluating new operating models, such as seasonal operation.
Although the U.S. coal-fired power plant fleet is downsizing, coal-fired plants are still an important resource to meet electricity demand, especially during peak periods. This factor was evident during the heat wave that gripped most of the United States during July and August 2020. Data from EIA’s Hourly Electric Grid Monitor show that output from coal-fired generating plants reached an hourly dispatch of 161.5 GW on July 27, 2020. Of the electricity generated on July 27 in the Lower 48 states, 24% was coal-fired. Only natural gas-fired sources held a higher share at 45%.
Source: U.S. Energy Information Administration, Hourly Electric Grid Monitor
The coal power plant fleet is used much less during electricity’s shoulder months of spring (March, April, and May) and fall (September, October, and November). During the winter and summer months, the coal fleet operates at an average capacity factor, or utilization rate, of more than 60%. However, in the spring and fall, the average capacity factor has been less than 50%.
Seasonal differences in capacity factor have become more pronounced during the past two years, largely because coal has been displaced by cheaper generation from natural gas and renewable energy during the shoulder months. In April and May 2020, the coal fleet operated less than 30% of the time. As a result, coal plants sometimes assert that they are unable to operate for enough hours to produce enough annual revenue to cover costs.
Source: U.S. Energy Information Administration, Electric Power Monthly
In an effort to improve the economics of coal plants, owners are evaluating plans to run plants on a seasonal basis, when electricity demand allows for steadier operation. Under these plans, coal plants would only operate during periods of higher electricity demand, from December to February (winter) and from June to August (summer). The expectation is that completely shutting down plants when electricity demand is low will limit financial losses.
So far in 2020, four large coal-fired plants announced plans to operate on a seasonal basis. Two of the plants, totaling 1,193 megawatts (MW), are in Minnesota. The other two are a 793 MW plant in Arizona and a 645 MW plant in Louisiana. The two units in Minnesota will run during the summer and winter. The plants in Arizona and Louisiana will only operate during summer because they are located in warmer climes.
Whether or not seasonal operation sufficiently improves the economics of coal plants remains to be seen. In 2018, owners of a plant in Wisconsin and a plant in Texas switched to seasonal operation. However, the practice lasted for less than a year because both facilities were completely shut down shortly thereafter.
Something interesting to share?
Join NrgEdge and create your own NrgBuzz today
“Communication is an art. Period”
It is true when we say that connecting with people is not everyone’s cup of tea. The first step is listening and then responding accordingly.
When it comes to chatting services, it becomes even more crucial to be clear and transparent.
It falls under the category of Managed Chat Services. People are trained to know inside out about a particular service/product.
But what are the exact requirements and features for anyone to become a chat service agent? Find about them below:
This form of communication requires the agent to understand the need of the user properly and respond in a way that the easiest for them to understand. This differs from person to person easily.
It has been found that using managed services helps in acquiring customers and converting leads easily. People get quick quality responses which creates a good image of the seller in their minds.
Be quick in responding. This show how alert and active the employees are. If the response takes a long amount of time, then it can leave the customer frustrated. This can end up creating a negative impact on the customer.
There can be times when a shopper can get distracted or can get busy exploring other options/varieties online. This can look like the customer has helped but the reality is far away from it. Give the user a sufficient amount of time before declaring a chat dead or unresponsive.
A Propane Bullet Tank, also known as LPG Above Ground Tanks, is used for storing liquid natural gas. The tanks have components that best fit your company's needs and are available in various sizes.
The size of a propane bullet tank can be anything from 6,000 and 30,000 gallons, with an 18,000 tank generally the most popular. Tank fill levels should not exceed 70–80% for liquid natural gas to expand inside the vessel.
For holding trucks to reach the site and collect liquids, a tank's average pressure should be approximately 250 psi. This will keep liquid natural gas contained and under low pressure.What & Where Is Propane Bullet Tank Used?
You're undoubtedly wondering, "Where should I utilize or keep them?" A propane bullet tank is linked to the cold separator drain on a Joule Thomson System (JTS) or mechanical refrigeration devices for the collection and short-term storage of the recovered natural gas liquids.
These tanks are also utilized in refineries and other end-use facilities for the bulk storage of goods that can be sold, such as propane or butane.
LPG is kept in propane bullet tanks because the liquid gas needs to be kept under intense pressure to remain fluid. Bullet tanks effectively do this because of their evenly dispersed, consistent pressure. Since there are no edges, there is also no possibility of a variable pressure region.
What Can a Propane Bullet Tank Do?
A channel called a bulkhead stanchion prevents unintentional vehicle pull-away.
The most important valve on any tank is the pressure relief valve. It is intended to release too much pressure.
The level gauge continuously measures the levels of liquid natural gas.
Reduces fluid loss during emergencies thanks to the emergency shutoff valve.
If trucking drives away while the hoses are still attached and move, the bulkhead, flexible hose, and hose couplings protect the piping. The flexible hoses won't break the ridged pipework; they will stretch.
The high-pressure regulator controls the pneumatic pressure necessary for all ESVs to operate effectively.
GasnTools offer the most excellent propane Bullet tanks at affordable prices. Offering high-quality bullet tanks is what they are involved in doing due to their knowledge and experience in this particular field.
LPG gas is frequently kept and stored in these tanks. These LPG Above Ground Tanks serve a variety of industrial utilities quite effectively. Only top-notch raw materials and cutting-edge technologies are used when making this tank.
Nitrogen in liquid form is a colorless, odorless, nonflammable, inert cryogenic liquid. It has a boiling point of less than -130 °F (-196 °C). Although this product is freezing, Nitrogen is widely used in chemical analysis during sample preparation. It is employed in the concentration and condensing of liquid sample volumes. It is used in the production of explosives, nylon, nitric acid, fertilizers, and color-safe operation precautions must be taken when handling or using it in Dubai.
Buy Liquid Nitrogen Cylinder in the UAE from GasNtools and improve the display of your frozen items!Ways To Deliver Nitrogen
You must be wondering where to buy nitrogen gas. GasNtools is one of the best liquid nitrogen suppliers that can meet your needs for nitrogen gas no matter what they are. They provide nitrogen to:
Compressed nitrogen is offered in a variety of cylinder sizes:
40-liter nitrogen cylinder with a 6 m3 capacity at 140 bar and a 10 m3 capacity at 200 bar.
Different-sized pour spouts of liquid nitrogen are available.
Massive service: For high-volume applications, liquid nitrogen is transported in cryogenic tankers to on-site storage. It is kept as a cryogenic liquid in a vacuum-insulated vessel that can hold enough over many days and is available as either a liquid or a gas on demand.
It has spread throughout the industry and is now widely used in restaurants to quickly freeze liquids to ice creams and desserts for live food displays. Because liquid nitrogen has a temperature of -196 °C, the liquid ice cream mixture can be quickly cooled and frozen. Any remaining nitrogen escapes as a gas. Another advantage of freezing is that it reduces dehydration losses, which can reach crucial economic tiers with these items under ambient air. The cost of liquid nitrogen in Dubai is completely inexpensive. As a result, many customers approach GasNtools to obtain this nitrogen gas quickly and affordably.
Although liquid nitrogen is safe in food and beverages, it should not be consumed immediately. Before providing it to the customer, it must have vanished entirely from the food or drink. Because it can be highly hazardous or devastating if not handled properly, this product is only maintained by trained chefs.
When managing liquid Nitrogen, wear dielectrics gloves and carefully made PPEs (Personal Protective Equipment).
GasNtools is Dubai's most dependable nitrogen gas supplier. They always transport nitrogen gas in a trustable container. You must use a service elevator to transport this gas.