The world's first! Morocco 800 mw photovoltaic solar-thermal photovoltaic hybrid power projects will use the electric heat storage

photovoltaic net news: in general, photovoltaic power generation project will choose configuration in order to realize the battery energy storage, but the Moroccan is advancing the construction of 800 mw of installed Morocco Noor Midelt solar-thermal photovoltaic hybrid project will I break this practice, take the lead in the photovoltaic power generation combined with molten salt heat storage system.

the project total investment of about 75. 700 million dirhams ( Us $2. 1 billion) Electricity price is 0, the rush hour. 68 dirhams/kWh ( S $0. 48 yuan/kWh) 。 Project will be done by slot solar-thermal power generation system ( 190MW） And photovoltaic power generation systems, photovoltaic power generation systems are part of the electricity production will be through the electric heating device is stored in thermal power generation system of the thermal storage system configuration.

from a technical perspective, photovoltaic power through the electric heating storage, subsequent again through the solar-thermal power generation system power generation through electric & ndash; — Hot & ndash; — Electricity twice energy conversion process, the inevitable losses. So why Noor Midelt I project to take the train of thought?

　　MASEN（ Morocco renewable energy management) Technical director Abderrahim Jamrani explanation is given, and he has said in a solar-thermal power generation on the BBS, already interconnection of Noor solar-thermal power station I, II and III solar-thermal power generation technology was chosen as Morocco when fuel and electricity prices as high as 30 cents/kWh, and with a population of 36 million, Morocco need after dark maintain 5 hours of power supply, through the construction of configurable low-cost hot molten salt storage system of thermal power plant is expected to make the country in 2030 before achieve 52% power needs to come from renewable sources.

and Noor Midelt I project at the beginning of the planning ideas are: using photovoltaic (pv) power supply during the day and a small amount of spare battery for photovoltaic system configurations, peak in the evening, 5 hours of heat storage system using configuration solar-thermal power generation system. However, with the price of solar energypower falling fast, design of energy storage was changed.

Abderrahim Jamrani said: & other; If there is no need to configure energy storage system for a long time, use the battery can meet the need. But after research, if you want to meet after dark 5 hours of electricity demand, with thermal storage type solar-thermal power generation is a must. But as a result of photovoltaic power generation costs down too fast, eventually we will choose some photovoltaic energy is stored in the heat storage system. “

unit is put forward according to the technical thinking on technical director Mark of TSK Flagsol Schmitz, solar-thermal power generation system in the project and photovoltaic power generation system can be independent production and supply power to the grid but by electric heater can combine both again.

normal operation, the groove around the solar-thermal power generation systems working temperature of 400 ℃, but the molten salt in the storage tank can withstand higher temperatures, and high temperature steam for steam turbine power generation efficiency is very good, so we used the concept of a developed a few years ago, the extra power into the heat storage tank in the photovoltaic system.

he further explains that slot solar-thermal systems working temperature will be affected by the limitation of system in the circulation of the heat transfer fluid, usually, groove solar-thermal system configuration of the operating temperature of the molten salt storage tank is lower than 400 ℃, but this limitation can be overcome by electricity with hot melt salt, solar energy equipment, solar panels, after adjusting to the hot salt shaker of the molten salt temperature can reach 565 ℃.

Mark Schmitz thinks, with intermittent energy sources such as photovoltaic, wind power on a global scale for large-scale deployment of renewable energy electricity proportion in the whole power system, but at a certain critical point, the grid will face the larger impact, solar energyequipment, such as the sunlight is very sufficient, there will be a pv systems to the grid transmission capacity is too large.

in this context, Morocco, not only more grid part of the country and from the lowest cost of purchasing energy regulator would turn into & other; The most suitable & throughout; Procurement, which separated the photovoltaic and thermal system, and the thinking of sharing the thermal storage system of field will get more extensive application. Because when power grid impact, these low-cost photovoltaic power can be realized through thermal power generation system of regenerative energy storage, according to the need to supply at any time to the grid.

solar photovoltaic network statement: this information is reproduced from the media or other Internet web site, network cooperation photovoltaic (pv) grid, photovoltaic solar power network published the article for the purpose of the information, solar panels, does not mean that agree with his point of view or confirm its description. The article content is for reference only.

this paper statistics the September to today issued a total of 2. 85 gw pv power plant EPC and 1. 9 gw component bid opening information. Among them, the EPC project owner units is given priority to with soe/state, this also reflected from the side, in project bidding and parity, the state-owned enterprises have become the absolute main force. Specifically, CGNPC in development of 410 mw, 603 mw, guangzhou energy saving 220 mw, 345 mw, jin can group the people vote for 200 mw, 190 mw hubei energy group, huaneng power 180 mw

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