There are many advantages of superconducting underground power transmission cables claimed over conventional copper cables, but none of them carries very far. One claim frequently made is space saving in densely populated urban areas.
Now here you see some superconductor cables on the left and conventional HV and EHV cables of similar power transmission capabilities on the right side.Read full article
Geographic diversification of wind farms can smooth out the fluctuations in wind power generation and reduce the associated system balancing and reliability costs. The paper uses historical wind production data from five European countries (Austria, Denmark, France, Germany, and Spain) and applies Mean-Variance Portfolio theory to identify cross-country portfolios that minimize the total variance of wind production for a given level of production.Read full article
Market trends and potential energy production
Compared to the traditional wind market, the market for small wind turbines is growing at a slow speed. But according to Miamari Siitoinen, Marketing Director of Eagle Windpower Oy, 'the wind is turning' and small wind turbines are currently witnessing a strong increase in demand.Read full article
Leonardo ENERGY opens here a new series of policy briefing brochures with a sharp look to pertinent topics on the European energy agenda aiming at providing its users instruments to interpret these issues and have an objective opinion on them!
Motor Driven Systems account for about 50% of electricity consumed in Europe and represent a major potential for energy savings!Read full article
Climate Policy in the US is beggining to gain momentum. Any effective climate policy will need to achieve large reductions in both the amount of energy used and the carbon intensity of energy in each of the following sectors: transportation, electricity production and heat for homes, businesses and industries!Read full article
Cables are important components in the transportation and distribution of electricity. Due to the increased need for power, but also because overhead power lines are often replaced by (underground) power cables in densely populated areas, the importance of power cables has grown over the years.Read full article
Potential production capacity far overrated
The Office of Metropolitan Architecture (OMA) headquartered in Rotterdam and headed up by the Dutch architect Rem Koolhaas, has developed a master plan for large-scale wind energy production in the North Sea. The operative adjective here is large-scale. The plan projects a potential annual production of 13,400 TWh by 2050.
The principal idea is to develop a huge ring of wind farms on offshore marine sites in the Exclusive Economic Zones of Denmark, Germany, the Netherlands, Norway, and the UK and to connect them by a power cable super ring. Such a ring would enable fewer connections with the coast, avoiding the necessity of connecting every wind farm with the grid separately.
The plan sounds good and looks brilliant. The trouble is that it appallingly neglects some basic technical aspects of wind energy. A quick verification of the annual production figure leads one to suspect that OMA simply "forgot" to take a capacity factor into account...
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Although the renewable energy sector is maturing fast, still the developers are experiencing some hurdles to come to financial closure of actual projects. A prominent problem is that the technologies are generally associated with unfamiliar, high and unclear risks. Therefore a tool was developed that provides insights in the risks present in renewable energy projects, assists to communicate these risks and helps finding ways to effectively manage the project risks.Read full article