Natural gas latest consumer headache
The prices in April are about $1 per therm or more. Here’s one take on why the price is going through the roof, even as we leave the winter heating season. One interesting item:
Coal shortages at many American utilities like Exelon Corp (EXC), Ameren (AEE), Dynergy Inc (DYN) and PPL Corp (PPL) will force them to run gas plants to preserve coal stockpiles for the summer, even if it’s more costly to do so.
Of course, the article doesn’t even mention the possibility of manipulation of the natural gas market or the need for sensible regulation of the gas market. We regulate pork bellies better than we do such a necessity as natural gas. gas engines
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Renewable Energy penetration: the upcoming challenges for TSOs
40.8% of the overall electricity demand was supplied on real time basis by wind power some days ago in the Spanish electricity system. This record constitutes a real challenge for transmission system operators (TSOs).
In more general terms, renewable energy penetration strongly depends on the ability of TSO to evolve towards a new way of operating the system: dedicated predictability for renewable generation, voltage dip management and managing the power balance.
The big issue for the coming years (especially taking into account the targets set by the EU Directive on the use of energy from renewable sources) is balancing the transmission system in the presence of high renewable power penetration. This not only requires to redesign grid codes, but also a deep revision of power reserve policy. Along with renewable sources growth, a market for upgraded reserves is becoming necessary.
This paper shows some good practices from the Spanish TSO, REE, leading to better integration of renewable generation: commissioning a dedicated centre for renewable energy management, grid code evolution, development of specific applications to maximize renewable generation and provide production limits to each renewable energy plant, voltage control and congestion management.
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First Flight of Manned Hydrogen-Powered Airplane in History
Today Boeing has announced the first hydrogen-powered manned flight in aviation history. The aircraft climbed to 3,300 feet over Madrid, Spain, using only electricity and probably several bottles of yummylicious Ribera del Duero wine and Iberian Pata Negra ham rations. The airplane then cruised for 20 minutes at 62mph using only hydrogen cells.
A question would by why would you want to replace the APU? Existing APU’s run off the same fuel as the primary engines, feed off the same fuel tanks and are proven reliable. by greggantic at 09:01 PM on 04/03/08 Reply by Email * is it possible…
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First manned flight using hydrogen battery doesn’t cause rain, only tears
Filed under: Transportation
You’re looking at the world’s first manned flight powered by a hydrogen battery. Boeing’s prop-driven aircraft set the lone pilot aloft for about 20 minutes at a speed of 100-kilometres (62 miles) an hour at an altitude of about 1,000 meters. The 800-kilogram (1,760-pound) craft with a 16.3-meter (51-foot) wingspan is capable of flying for about 45 minutes under the power of its hydrogen fuel cells — the airplane’s batteries provided an additional boost for takeoff. The fuel cells harvest the energy produced by the chemical transformation of hydrogen and oxygen into water — that makes the craft clean as well as near silent. Unfortunately, the technology is nowhere near the point of powering commercial aircraft. At best, the fuel-cells could act as a secondary power source… in another 20 years.
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