Tag Archives: Energy

Bitcoin’s insatiable hunger for energy

As a quick gauge, a single bitcoin transaction has been reported to use the same amount of energy to power nine homes in the United States for one day.

In case, you’ve haven’t been following the news, there have ongoing buzz about cryptocurrencies, specifically bitcoins. In case, you are unaware about Bitcoin, here’s a quick visual snippet:

Though the focus has been on its continuing increase of its value and monetary agencies warning bitcoin investors to act with extreme caution, the energy consumption of such bitcoin transactions have been greatly overlooked which can have extreme effects on the environment.

In an opinion piece by The Straits Times, such transactions have been referred to as “burning mines”.  The complex mathematical problems to process such transactions are becoming increasingly challenge to solve, making bitcoin miners to be quipped with high-speed processors.

Such transactions needs more energy and emit heat – which also need cooling systems such as huge fans to prevent breakdowns. Digiconomist – a cryptocurrency publication has projected that “energy will be exhausted by bitcoins than the whole of the US by July 2019, and the entire world’s energy consumption will be surpassed by the end of 2020”.

There’s no way cryptocurrencies are going to go away, but are we ready for such insatiable energy consumption. The author advises to do our bit by thinking twice before buying bitcoins. But would that be enough? There were such concerns about energy consumption by Google searches few years back but seems we’ve come a long way since then. Perhaps, we need to think about measures that could be put in place especially in countries where they use environmentally unfriendly source of energy such as coal?


[EnvironMonitor] BP Statistical Review of World Energy

The BP Statistical Review of World Energy, produced by BP Global, covers the field of energy economics and could be useful reference by the media, academia, world governments and energy companies. A new edition is published every June. The Review can be downloaded at their webpage.

Among the many data relating to energy markets found in the Review, there are good illustrations on the world distribution of fossil fuel reserves, i.e. for oil, coal and natural gas. Data on the prices, production and consumption of these fuel can also be found.

Other energy type like nuclear and hydroelectric are also covered, though only mainly on the consumption and the regional consumption.

New Title for Mechanical and Aerospace Engineering

  Title:  Renewable energy systems : the choice and modeling of 100% renewable solutions
Editor:  Lund, Henrik.
Call number:  TJ808.L962
Availability:  Click here


In this practical guide, globally recognized renewable energy researcher and professor Henrik Lund describes the modeling and simulation techniques that can be utilised to ensure at the outset of any renewable energy project that the resources available will meet supply demands. A clear, comprehensive methodology is set forth for comparing different energy systems’ abilities to integrate fluctuating and intermittent renewable energy sources. Dr. Lund offers a freely available accompanying software tool, EnergyPLAN, that automates and simplifies the calculations supporting such detailed comparative analysis. The book further presents concrete design examples derived from a dozen successfully implemented renewable energy systems around the globe. It makes recommendations on the first steps of large-scale integration, focusing on the more immediate issue of conversion, rather than storage technologies.
The text also undertakes the socio-political realities governing the implementation of renewable energy systems. Dr. Lund makes clear that it is the work of professionals in the renewables field to raise awareness that alternatives DO exist and that it is indeed economically and technically viable to choose renewable energy systems. To aid readers in that task, the book presents key strategies on how to overcome the inherent lethargy of entrenched institutions that seek to reinforce the status quo when confronted with objectives implying the need for radical technological change. After all, knowing there IS a choice is half the battle.

New Title for Mechanical and Aerospace Engineering

  Title:   Energy : management, supply and conservation
Author:   Beggs, Clive.
Call number:   TJ163.3.B416
Availability:  Click here

Energy – its source, security, price, and the efficiency of its use, are increasingly important issues for a diverse range of people.
‘Energy: Management, Supply and Conservation’ is a comprehensive text dealing with the theory and practice of the supply of energy, energy management and auditing, and the design of sustainable energy facilities. It considers the systems needed to create low-energy, sustainable buildings, including passive solar design, energy-efficient heating and air-conditioning, and combined heat and power. In addition the book includes substantial sections on renewable energy, transport energy, and energy economics. This new edition includes the latest in alternate-energy technology, for example wind turbines and solar panels as well as updating important energy values and statistics.
The book’s readable style, along with its many figures, tables and worked examples make it an ideal text for courses on energy management, environmental engineering, architectural engineering and building services engineering. It will also be useful as a definitive handbook for professionals in the environmental, construction, utilities and facilities management sectors, as well as being of interest to those involved in sustainability economics and environmental policy making.
Clive Beggs is Professor of Medical Technology at the University of Bradford. He is both a mechanical engineer and a biomedical scientist, who for many years has had an interest in ways in which energy is utilized and consumed. He is an expert in the fields of energy management and low energy building design, with many years experience of the design and installation of mechanical services within the construction industry. He is a well known international speaker and is author of many scientific papers on low energy and environmentally friendly building design. He is a holder of the CIBSE Carter Bronze Medal for his work on desiccant cooling.
* Understand energy issues effecting the built environment such as cost, supply, taxation and policy
* How to monitor, manage and avoid waste energy
* Worked examples showing how to calculate key energy factor