The electricity you use to power your home is most likely generated by burning coal, with some nuclear and natural gas-fueled current in the mix for good measure. However, that could all be changing, and faster than anyone expected. While renewable fuel sources like solar and wind power make up only a small part of the nation's electrical grid today, wind could actually be the leading source of electricity in little more than three decades.

Viable and Competitive

Wind could surpass other sources and provide as much as a third of the United States’ electricity by 2050, according to a report by the U.S. Department of Energy (DOE) Wind and Water Power Technologies office. Wind currently weighs in at only 4.5 percent of the supply, but if projections hold, that will increase to 10 percent by 2020 and 20 percent by 2030.

“The wind industry can be characterized by the substantial growth of domestic manufacturing and the level of wind deployment seen in recent years,” José Zayas, director of the DOE Wind and Water Power Technologies office, said to EcoWatch. “Wind power systems are now seen as a viable and competitive source of electricity across the nation. Wind power’s emerging role is an important option in a portfolio of new energy solutions for future generations.”

Benefits to Public Health, Environment

Should the prediction of wind's dominance come to pass, it would have numerous benefits for the environment and for consumers. Even at current levels, wind has reduced water consumption by 36.5 billion gallons and carbon emissions by 115,000,000 metric tons compared to traditional power sources, according to the government.

That means a lot less carbon getting released into the atmosphere, helping to slow our contribution to climate change. Plus, once the infrastructure is built, wind is free to harvest, and doesn't have the same environmental tradeoffs as coal and natural gas. The benefits “can address key societal challenges such as climate change, air quality and public health, and water scarcity,” the report said.

Uncertainties Looming

The rosy projection is just that. There are numerous uncertainties that could affect how well wind power actually does in the future, including government policies to incentivize wind or decentivize coal usage, the supply and price of natural gas, and the demand for electricity overall in the United States.

The technology around wind generation will have to hold its own as well. Growth in market share depends on continued advances in efficiency, more transmission capacity and better weather forecasting so we can best take advantage of favorable gusts.

Global Optimism

Should the growth of wind continue as predicted, there could be hope for a cleaner, healthier future. And what's good for the United States can be good for the rest of the world as well.

“The global energy market of the future is poised to be the largest market the world has ever known,” Secretary of State John Kerry said in a speech about wind power. “Pursuing cleaner, more efficient energy is actually the only way that nations around the world can build the kind of economies that are going to thrive for decades to come.

When things go wrong with the electricity in your home, it’s easy to get overwhelmed in a hurry. Do you need an immediate solution? Is the problem normal? What should I do!? All very understandable when you’re talking about something as both volatile and vital as electricity. The team at Hoffman Electrical in Tampa never wants you to be at a loss, and today we’re going to differentiate normal electrical behavior, and things that are emergencies!

Programmable logic controllers provide automatic control of processes so that very little human intervention is required. Yet, this results in a well-coordinated, repetitive process.

These systems automatically start and shut down critical equipment in large and complex manufacturing processes. When in operation, programmable logic controllers ensure that all conditions are met before starting up a certain machine or process. In addition, the PLC continues monitoring the entire system using a variety of sensors.

Consequently, this ensures that everything runs as programmed. The PLC will trip if it detects a malfunction or abnormality in any of the monitored parameters.

The operating environment, size of the processes, ease of access by operators and maintenance personnel influence the choice of PLC.

A harsh environment with dust or small particles will require a PLC system with an appropriately IP rated enclosure. This prevents ingress of foreign particles into the system. The available space and layout also influence the choice. Therefore, most users require easy access for reprogramming, maintenance, or troubleshooting.

The simplest form of a PLC, all the basic components of a PLC include the I/O points, CPU, and software program. It is typically housed in a single enclosure. These PLCs are attached directly to the equipment being controlled.

Modular PLCs consists of several components on a common bus within a base unit to allow extending of the input and output. These units work on an expandable base unit. Therefore, it provides all the basic components of a PLC, i.e., a power supply, I/O points, memory and the CPU, and slots for additional cards.  These modules, which may be from the same or different manufacturers, are plugged together into a base unit.

This follows the same modular concept, but each of the modules plugs into a rack. The add-on modules are contained in racks which are then linked together through a network of connections. Since the rack mounting PLC is highly scalable, it allows very large systems to be assembled.

In energy management, the PLC monitors and controls equipment such as boiler systems. It helps the organization increase energy efficiency and safety. PLCs are also used in numerous everyday activities. They are found in factories, homes, commercial buildings, airports, unmanned car parks, and more.

Finally, some practical applications include: