The supply of water was derived from a natural head of water, the water mains, or a specialised high pressure water supply such as that provided by the London Hydraulic Power Company.

Gas is arguably more vulnerable than oil to unforeseen supply interruptions.

But, if we want to go deeper, of course, we need another gas supply.

Moreover, Russian gas represents only 6 7 of the EU s total primary energy supply.

Ukraine s industries need to modernize, not become more addicted to cheap gas, and gas transit will become almost as monopolistic as gas supply a dismal prospect, given past cut offs of gas supplies between Russia and Europe.

An additional 24 of the natural gas supply is extracted or imported in the region.

For example, after Myanmar signed an agreement with China in 2005 to supply natural gas, India responded by cutting its own gas deal with Myanmar.

Gas from Burma, piped onshore from the Gulf of Martaban, generates around 20 of Bangkok s electricity supply.

Several cities in the northern part of Iran are frozen and their gas supply has been disrupted.

A similar calculation indicates that the peak to peak mains voltage in Europe is about 650 volts.

Of course, technological advances, like hydraulic fracturing ( fracking ) in the shale gas industry, could increase supply and therefore lower prices.

European utilities bargaining power vis à vis Russian gas giant Gazprom has risen considerably despite long term oil indexed supply contracts.

So it should be no surprise that Ukraine under Yanukovich has faced no further problems with the supply of Russian gas.

Its principal activity is the supply of electricity and gas to businesses and consumers in the United Kingdom and North America.

Thus the peak value of the mains voltage in the USA is about 120 2, or about 170 volts.

Calls for supply diversification stem largely from the EU s reliance on Russian gas, and Russia s willingness to use energy for political purposes.

It would reverse the pattern whereby Europe relies on repressive regimes to supply it with oil and gas and guard its borders against migrants.

Rapid global demand for electricity, increasing uncertainty in supply and prices of oil and natural gas, and concerns about the greenhouse gas emissions have opened more prospects for the new development of nuclear energy at the global scale.

Uganda wants a strong local content in the nascent oil and gas industry for its citizens to gain skilled manpower and a competitive supply edge.

Both India and China are each seeking greater influence over the strategically important country of Myanmar. For example, after Myanmar signed an agreement with China in 2005 to supply natural gas, India responded by cutting its own gas deal with Myanmar.

Natural gas fields in the Eastern Mediterranean are estimated to hold up to 122 trillion cubic feet, enough to supply the entire world for a year.

But, if we only had an oxygen gas supply cylinder we wouldn't be able to go very deep, because we'd run into oxygen toxicity very, very quickly.

Oil provides somewhat less economic power than gas because it is a fungible commodity, and interruptions of supply can be made up by purchases on world markets.

So, whether it's logistics and supply chain management or natural gas and resource extraction, financial services, pharmaceuticals, bioinformatics, those are the topics right now, but that's not a killer app.

The most optimistic of these predicts that renewables could account for close to 80 of total energy supply by mid century, thereby cutting greenhouse gas emissions by around one third.

Europe would then be in a better position to take a firm and unified stance on intentional supply disruptions, thereby avoiding repetition of the 2006 and 2009 Ukraine Russia gas disputes.

Two other developments promise to prevent increased European dependence on Russia massive expansion of liquefied gas imports into the EU and linked to this and to deregulation of the European gas market the transition from long term supply agreements and the oil price peg to market dependent spot prices.

Their values vary from gas to gas.

One could take as an example the supply of freon gas to Iraq which was authorized by the sanctions Committee, under Security Council resolution 661 (1990) as amended by resolution 687 (1991).

The Swedish Defense Research Agency has reported that out of 55 deliberate gas supply interruptions, explicit threats, or coercive price actions by Russia since 1991, only 11 had nothing to do with politics.

Although there was no interruption of gas supply from Tbilisi to South Ossetia, this step is necessary for the Kremlin to ensure even greater integration of this Georgian region into Russia s economic system.

Gas

The Bahrain National Gas Company operates a gas liquefaction plant that utilizes gas piped directly from Bahrain's oilfields.

The supply stand off between Russia and Ukraine of 2009 made these worries crystal clear in Europe, where gas imports are set to rise to 86 of demand by 2030, from 57 in 2006.

The project focuses on (a) improving energy efficiency through the replacement of outdated equipment and addressing leakage prevention and insulation needs in buildings and (b) extending gas supply to households with wood burning stoves.

The Central European Gas Hub (CEGH) is established as an important gas trading platform on the gas routes from East to West and also operates a gas exchange.

In hot gas (gas turbine), turbines are driven directly by gases produced by the combustion of natural gas or oil.

Early electric stoves were unsatisfactory due to the cost of electricity (compared with wood, coal, or city gas), limited power available from the electrical supply company, poor temperature regulation, and short life of heating elements.

Supply

Gas is a similar issue. Gas is also a biological product. And as you think of gas, well, you're familiar with gas. And here's a different way of mining coal.

Gas bottle

Gas suppliers

Despite the hype about the shale gas revolution, the extraction cost of (onshore) conventional gas remains below that of shale gas.

It is unrealistic to call for an end to Russian gas imports, or even an end to Europe s major reliance on them, but the EU can increase its own leverage by developing alternative sources of supply.

Replacing coal with natural gas does reduce greenhouse gas emissions, even if natural gas itself is not sustainable in the long term.