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reprint European energy storage developers have until the end of this month to submit proposals for projects in a new 10-year transmission system operators plan. But the minimum requirements imposed by the European Network of Transmission System Operators for Electricity (ENTSO-E) mean that only a small number of projects might be eligible. _progress | M replaces _kt75 | mirror. visit: http://progress-m.blogspot.com . ready: 01.07.2015. close ✕ ENTSO-E, which represents 41 system operators in Europe, announced the search for energy storage plants at the end of last month as part of a 10-year network development plan. The plan, updated every two years, acts as the basis for a list of so-called "projects of common interest" to better integrate the grid across the European Union. To be eligible for inclusion, a project has to be at least partially located in one of the 34 countries represented within ENTSO-E, and needs to have a minimum 225-megawatt installed cap...

-- a _kt75 | reprint   Tweet   Renewable energy sources, at least wind and solar, are variable — the wind isn’t always blowing, the sun isn’t always shining. This is something every glib pundit on the internet cites as a reason we’ll need fossil-fuel or nuclear “baseload” power plants for the foreseeable future. It’s a frustrating topic, since people who actually study the subject (like NREL) have shown that there are all sorts of ways to handle variability without disrupting the grid. One of those ways is transmission : building power lines to take renewable energy from where it is abundant (often remote areas) to where it is needed (mainly big cities). More specifically, the idea is to build high-voltage direct-current (HVDC) lines that would carry energy over long distances from remote sites and feed it into the alternating-current (AC) lines that serve urban areas. (The DC vs. AC question is interesting, but not particularly essential...

-- a note from _kt75 These days Sudan completed the expansion of the Roseiris hydro power plant which aims primarily at an improved power supply and irrigation [ 0 ]- [ 6 ] . The expansion of the hydro power plant included in detail [ 7 ], [ 8 ] : - increasing the dam height by about 10 meters - doubling the power generation capacity to 1'800 MW - increasing the reservoir capacity to ca. 4.4 Bio m3 Further hydro power information are available by consulting _sust invent 0.1 RC 2 ( here ). Primary contractors were Chinese China International Water & Electric Corp. and China Three Gorges Corp. [ 7 ], [ 9 ]. The upgrade of the Roseiris power plant necessitated the relocation of more than 20'000 people. In addition, the plant necessitates particular safety measures due to its location close to South Sudan [ 10 ]. Another issue pose the increased variations in available water volume, sedimentation and discharge [ 11 ].  References: [ 0 ], [ 1 ], [ 2 ], [ 3 ...