Gemasolar power tower commissioned

<b>The Gemasolar plant comprises 2,650 heliostats that stretch across approximately 185 hectares. They focus the solar radiation on the central receiver which is able to absorb 95 % of it and transmit this energy to the molten salt.</b><br><br><i>Photo: Sener</i><br><br>
The Gemasolar plant comprises 2,650 heliostats that stretch across approximately 185 hectares. They focus the solar radiation on the central receiver which is able to absorb 95 % of it and transmit this energy to the molten salt.

Photo: Sener

Other plants like PS10 and PS20 in Spain or Sierra Solar in the US are using steam as heat transfer medium. With salt as HTF, Torresol is able to fill the heat storage tanks directly with salt. In other solar thermal power plants the HTFs are filling the storage via a heat exchanger, which involves some heat loss. With the storage tank, the Gemasolar plant is capable to produce electricity for 15 hours without sunlight. Thanks to that, Torresol assumes that the plant will be able to produce electricity around the clock for most of the time.

The plant will work at temperatures about 500 °C and produce electricity via a steam turbine. The most common parabolic trough plants are currently working at temperatures below 400 °C. A high temperature is one of the most important factors to increase plant efficiency and reduce the production cost of electricity. However, the tower technology is very new and has to prove its commercial viability. Enrique Sendagorta, Chairman of Torresol Energy, said: “Gemasolar is a revolution in the CSP sector, as the standardization of this new technology will mean a real reduction in the investment costs for solar plants. The commercial operation of this plant will lead the way for other central tower plants with molten salt receiver technology, an efficient system that improves the dispatchability of electric power from renewable sources.” Torresol is a joint venture between Masdar from Abu Dhabi and Sener from Spain. Both companies are also working on further CSP and renewable energy projects.

Similar Entries

Webinar "Operation of Wind Power Plants in Cold Climate 2021" (pict. VGB)

For the first time the results of the VGB Research Project “Comparison of blade-based ice detection systems” will be presented at the webinar
"Operation of Wind Power Plants in Cold Climate".

Bienvenida PV plant by ib vogt (pict. b vogt)

. ib vogt completed construction of the Talanx Group’s 180 MWp solar power plant near the town of Bienvenida in Badajoz, Spain. The project commenced commercial operations and achieved its formal Provisional Acceptance (PAC) milestone in the first quarter of this year despite challenges from COVID-19 restrictions.

Using Bolt-Check to monitor clamp load (pict.: R&D A/S)

The Bolt-Check tool reduces preventative maintenance time, resulting in service cost reductions while maximizing uptime; Reduced health and safety costs.

Lukoil has energized its second solar park in Russia’s southern Volgograd region (pict. Lukoil)

Lukoil, one of the largest publicly traded, vertically integrated oil and gas companies in the world, has energized its second solar park in Russia’s southern Volgograd region. The 20 MW project was built at the territory of company’s oil refinery unused for its core operations.