Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Monday, September 7, 2015

Temporary Power Plants Support Hydropower Generation

Many countries around the globe whose electricity generation is mainly dependent on hydropower are being adversely affected by the extended and intense El Niño phenomenon. El Niño, a cyclical meteorological phenomenon, brings droughts in a number of regions in the world, causing hydropower facilities to fail to generate enough electricity for residential and industrial consumption.


In cases like this, utility providers or governments of hydropower-dependent countries can find merit in hiring large-scale temporary power plants. Rental power plants can instantly fill in the gap in electricity supply without the need to heavily invest in permanent power infrastructure or wait years or decades for the completion of one. As large-scale rental generators are modular and containerized they can be rapidly delivered to and installed anywhere in the world, and can be configured to the requirement of any city, region or even an entire country. They are fully capable of working in remote locations and in areas where grids or substations are outdated, damaged or absent. They can be fully constructed and operated in a matter of weeks, and can be ramped up or scaled down based on the customer’s consumption.

Aside from proven reliability and ease of installation and operation, large-scale temporary power plants also boast of sustainability and environmental stewardship. Modern large-scale rental generators are able to run on a variety of fuels, including natural gas or dual-fuel (gas and diesel) and thus surpass worldwide emission standards.

By virtue of their economy, dependability and environmentally friendliness, renting large-scale temporary power plants as a solution for seasonal electricity requirements yields many benefits to governments, utilities, industries and residents.

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Sunday, October 19, 2014

Power or Water? Why not both?

The issue on power and water represents a classic Catch-22: Desalination is becoming increasingly necessary because of drinking water scarcity, but the process gobbles down copious amounts of electricity, to be created by power plants that need water. Is there a way out of this cycle?


Veera Gnaneswar Gude, a professor and researcher at the Mississippi State University, thinks so. She suggests a side-by-side power and desalination plant as a solution to the foregoing conundrum. “There is mutual benefit for both in combining these two processes together,” she says, adding that she and her team have spent the last eight years devising a system that will make desalination-power generation partnership possible.

This is how the technique works: Instead of using water for cooling purposes, Gude’s technology incorporates a power plant refrigeration system that produces cold air. This systems is run by waste heat, which is already being produced in the power plant and, hence, does not require any outside energy sources. “The waste heat,” explains Gude, “can also be used to power a neighboring low-temperature desalination (LTD) plant.”

According to the team’s study, the partnership works because LTD is significantly less energy-intensive than conventional desalination plants. “LTD,” continues Gude, “separates the salt by condensing water at a lower pressure point and temperature than conventional systems. The LTD process does not require any mechanical pumping or cooling, which contributes in saving energy.”
To sum up, Gude highlights that LTD is useful for places that are in need of power but don’t have access to water. “It avoids using up a precious resource.”

Letting the technology develop
The technology that Gude and her team is proposing has the potential to hold water, as it attempts to resolve one of the most pressing problems of the world today: How can the world conserve water, when water is needed to produce potable water?

Having said this, it may be possible to see an exponential increase in the number of such installation, particularly in areas where water is scarce, but at the same time where electrification is crucial. It, however, can take years or decades, as developing and optimizing a technology is no mean feat. Add to it the external impositions of actually building the system, like securing funding, ascertaining an appropriate location, providing labor and obtaining approvals. Ten to twenty years of lead time may not at all be an exaggeration.

As technological development and market appreciation take their natural course, temporary power plants can provide the necessary power needed to produce safe drinking water anywhere in the world. Rental power stations are flexible, modular and cost-beneficial technologies that can be rapidly deployed from and to anywhere in the world. They are able to provide the exact amount of power needed by industrial processes, and are more cost-efficient, compared to building traditional power plants. Interim energy systems can offer the necessary power to produce potable water when future technologies, like the one proposed by Gude and her team, are still being enhanced. 

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Robert Bagatsing
Altaaqa Global
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Monday, August 11, 2014

Will the world be thirsty for energy?


In an era when engineering has pushed the envelope of production possibilities, the challenge may no longer be to attain greater heights, but rather to promote the longevity and viability of limited resources, like water.  


Back in the days when economies were organic, production depended on land, labor and capital. The latter two were capable of indefinite expansion, but land was limited. Almost all basic necessities in an organic economy – supply of food and raw materials that entered into production – depended on a finite resource that was land. Hence, the early humans were faced with a conundrum: Expanding material production would mean obtaining greater volume of produce from land, but that, in turn, would lead to the cultivation of land of inferior quality or to the use of existing land more intensively. When this situation persists, returns to both capital and labor would diminish. 

Classical economist, Adam Smith succinctly states the problem, spelling out its implications on the living standards of the population and on the return on capital (1789):

“In a country which had acquired that full complement of riches which the nature of its soil and climate, and its situation with respect to other countries, allowed it to acquire; which could, therefore, advance no further, and which was not going backwards, both the wages of labor and the profit of stock would probably be very low.”

David Ricardo, another classical economist, supported Adam Smith, and said that the resulting situation “will necessarily be rendered permanent by the laws of nature, which have limited the productive powers of the land”.

Have we overcome limitations?

Fast forward to today’s world…. 

The days of the organic economy have sailed, and the industrial revolution has powered production to a whole new level. Countries are now experiencing unprecedented growth patterns, and almost all sectors of the society and of the economy are dependent on electrical power to operate. Humanity has indeed made great strides to reach the era where it is now.  

But in this day and age of exceptional production capabilities, one truth has not changed, which still calls Smith and Ricardo to mind: Each country only has a limited amount of sources that it can acquire, and once obtained, the consumption will yield permanent effects by virtue of the laws of nature. This declaration may mean that the very process of growth as we know it implies that it cannot be sustained indefinitely. As growth depends on finite assets to persist, every increase in production will entail an equivalent escalation in consumption and destruction of resources. 

This hypothesis is no more evident than in these days. A recent study circulated by Aarhus University in Denmark predicts that if the current global power consumption pattern continues, there would not be enough water in the world to meet the demand by 2040. As water is used in different methods of power generation, increasing energy demand results in a proportional spike in the requirement for water. Therefore, experts are now suggesting that in order to curb the recession of the world’s water supply, current electricity generation procedures should evolve into approaches that do not need water to run. 

It seems, however, that humanity does not have the luxury of a 27-year deadline…. The same research adds that the effects of the continued rise in energy demand could be felt in some areas as early as in 2020. An estimated 30%-40% of the world will experience scarcity and lack of access to clean drinking water in 2020, and climate change is predicted to render its effects worse. 

The fact that the amount of the world’s water reserves is receding will not only put drinking water consumption in jeopardy but also the capability of power plants to produce electricity for generations to come.   

How to avert a power-water paradox

In order to mitigate the negative effects of power generation on the world’s water reserves, experts recommend turning to renewable sources of energy, like wind and solar. This makes perfect sense in the context of Smith and Ricardo’s scenario described above: Limitations will only exist if production is anchored on finite resources. Therefore, if one substitutes this factor with an infinite resource, restraints would cease to be, and growth could be sustained indefinitely. 

To date, there have been several countries in the world that have adopted initiatives to increase their renewable energy input in the coming decades. Germany, for instance, has set ambitious goals of boosting renewable energy to 35% of the country’s entire energy mix by 2020, and to 80% by 2050. Scandinavian countries have also established similar objectives. In the Middle East, the United Arab Emirates, for example, have recently inaugurated a large-scale solar power plant within the outskirts of Dubai, and has announced its subsequent extension in years to come. The Kingdom of Saudi Arabia has also been leading the research and development efforts in terms of renewable energy. 

That there are countries embracing the call for evolving energy generation processes has been documented, and more newly developed and, even, developing countries are following suit. One truth, however, cannot be taken out of the picture: Renewable energy systems, like wind and solar plants, are constantly developing and, at best, are experiencing a nascent upturn in terms of acceptance and technological innovation. As with any other systems, solar and wind farms still have room for improvement and may find benefits in the support of other equipment. Moreover, as renewable systems are powered by nature-driven energies, it may be challenging to predict their performance and have them deliver the same amount of continuous energy as traditional power plants.

As renewable energy engineers perfect wind and solar technologies, temporary power plants could support these systems by providing supplementary power to the areas where they operate. For instance, when wind energy facilities experience unstable production due to the unpredictability of wind, rental power plants may be able to assist in stabilizing the supply, so end-users may not experience power interruptions or blackouts. Rental power plants are equipped with technologies that can guarantee an immediate response at the outset of a supply instability from renewable facilities.

Case-in point, interim energy facilities are infused with fast-start systems that allows them to supply power at the shortest time possible. They are also adaptable enough to ascertain the exact need of the users, and flexible enough to allow for ramp-ups or scale-down of energy supply depending on the situation. They also represent a cost- and time-efficient alternative to building permanent power plants for the purposes of supporting renewable energy systems. 

Onwards to a greener future

In light of the grim repercussions that the present energy-water predicament may bring in the near future, the need to find suitable alternative sources of energy is heightened. But as one may predict, the perfection and the adoption of technologies cannot happen overnight nor in a span of few years. There are numerous factors involved in shifting a paradigm, and for a technology to gain traction, all variables involved should agree to head to the same direction. 

While experts are looking into the improvement of renewable energy generation facilities, these systems may find merit in tapping the support of other stable technologies, like rental generators. As the world transitions to alternative power generation processes, the need of the hour may not be to look for one method to dominate or overthrow another: What is essential to is find a balanced energy mix – traditional, renewable and temporary – where sources complement each other to create a system that will be capable of providing the most sustainable and stable electricity supply possible.

Human engineering has made it possible to work around limitations to production. Humans have found a way to transition from an economy largely dependent on muscle power and animal strength, to one run by steam and coal, to one anchored on petroleum, oil & gas and electrical energy. Now, in an era when engineering has pushed the envelope of production possibilities, the challenge may no longer be to attain greater heights, but rather to promote the longevity and viability of limited resources, like water.  

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Robert Bagatsing
Altaaqa Global
Tel: +971 56 1749505