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__NOTOC__ Solar hybrid power systems are hybrid power systems that combine solar power from a photovoltaic system with another power generating energy source.〔 A common type is a photovoltaic diesel hybrid system, combining photovoltaics (PV) and diesel generators, or diesel gensets, as PV has hardly any marginal cost and is treated with priority on the grid. The diesel gensets are used to constantly fill in the gap between the present load and the actual generated power by the PV system. To improve the efficiency of the system further either cogeneration〔Pearce, J. M. (2009). (Expanding photovoltaic penetration with residential distributed generation from hybrid solar photovoltaic and combined heat and power systems ). ''Energy'', 34(11), 1947-1954.〕〔Nosrat, A. H., Swan, L. G., & Pearce, J. M. (2014). (Simulations of greenhouse gas emission reductions from low-cost hybrid solar photovoltaic and cogeneration systems for new communities ). ''Sustainable Energy Technologies and Assessments'', 8, 34-41.〕〔Bando, S., Asano, H., Tokumoto, T., Tsukada, T., & Ogata, T. (2006, October). (Optimal operation planning of a photovoltaic-cogeneration-battery hybrid system ). ''In Power System Technology'', 2006. PowerCon 2006. International Conference on (pp. 1-8). IEEE.〕 or trigeneration,〔Nosrat, A. H., Swan, L. G., & Pearce, J. M. (2013). (Improved performance of hybrid photovoltaic-trigeneration systems over photovoltaic-cogen systems including effects of battery storage. ) ''Energy'', 49, 366-374.〕〔Nosrat, A., & Pearce, J. M. (2011). (Dispatch strategy and model for hybrid photovoltaic and trigeneration power systems ). ''Applied Energy'', 88(9), 3270-3276.〕 can be used. As solar energy is fluctuating, and the generation capacity of the diesel genesets is limited to a certain range, it is often a viable option to include battery storage in order to optimize solar's contribution to the overall generation of the hybrid system.〔(【引用サイトリンク】title=Hybrid power plants (wind- or solar-diesel) )〕〔(Kunal K. Shah, Aishwarya S. Mundada, Joshua M. Pearce. Performance of U.S. hybrid distributed energy systems: Solar photovoltaic, battery and combined heat and power. ''Energy Conversion and Management'' 105, pp. 71–80 (2015). DOI: 10.1016/j.enconman.2015.07.048 )〕 In 2015, a case-study conducted in seven countries concluded that in all cases generating costs can be reduced by hybridising mini-grids and isolated grids. However, financing costs for diesel-powered electricity grids with solar photovoltaics are crucial and largely depend on the ownership structure of the power plant. While cost reductions for state-owned utilities can be significant, the study also identified economic benefits to be insignificant or even negative for non-public utilities, such as independent power producers.〔(【引用サイトリンク】title=New study: Hybridising electricity grids with solar PV saves costs, especially benefits state-owned utilities )〕〔(【引用サイトリンク】title=Renewable Energy in Hybrid Mini-Grids and Isolated Grids: Economic Benefits and Business Cases )〕 Other solar hybrids include solar-wind systems. The combination of wind and solar PV has the advantage that the two sources complement each other because the peak operating times for each system occur at different times of the day and year. The power generation of such a hybrid system is therefore more constant and fluctuates less than each of the two component subsystems. The Hassi R'Mel power station in Algeria, is an example of combining concentrating solar power (CSP) with a gas turbine, where a 25-megawatt (MW) CSP-parabolic trough array supplements a much larger 130 MW combined cycle gas turbine plant. Another such integrated solar combined cycle power station is the Yazd power station in Iran ''(also see ISCC)''. == Gallery == File:Hybrid system.jpg|Typical wind and solar hybrid system File:Wind hybrid.png|Hybrid in Leh, India File:Hybrid system, 2400W windturbines, 4000W solar modules, island Zirje, Croatia.jpg|Hybrid on Žirje, Croatia File:Hybrid System.jpg|Small wind and solar hybrid system 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Solar hybrid power systems」の詳細全文を読む スポンサード リンク
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