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Key technical innovations in the construction of Baihetan Hydropower Station Project

Frontiers of Engineering Management 2023, Volume 10, Issue 2, Pages 367-372 doi: 10.1007/s42524-023-0253-5

Abstract: Key technical innovations in the construction of Baihetan Hydropower Station Project

Keywords： arch dam columnar jointed basalt low-heat cement concrete temperature controlled crack prevention million-kilowatt

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Project philosophy and innovation practice of Shendong 100-million-ton mining area

Wang An

Strategic Study of CAE 2008, Volume 10, Issue 12, Pages 53-57

Abstract: constructed the 10-milllion-ton mine group different from the traditional mode, and established the first 100-million-ton

Keywords： Shendong mining area coal mine development systematism objectiveness efficiency

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Potential and economic viability of standalone hybrid systems for a rural community of Sokoto, North-west Nigeria

O. D. OHIJEAGBON,Oluseyi. O AJAYI

Frontiers in Energy 2014, Volume 8, Issue 2, Pages 145-159 doi: 10.1007/s11708-014-0304-z

Abstract: An assessment of the potential and economic viability of standalone hybrid systems for an off-grid rural community of Sokoto, North-west Nigeria was conducted. A specific electric load profile was developed to suite the community consisting 200 homes, a school and a community health center. The data obtained from the Nigeria Meteorological Department, Oshodi, Lagos (daily mean wind speeds, and daily global solar radiation for 24 years from 1987 to 2010) were used. An assessment of the design that will optimally meet the daily load demand with a loss of load probability (LOLP) of 0.01 was performed, considering 3 stand-alone applications of photovoltaic (PV), wind and diesel, and 3 hybrid designs of wind-PV, wind-diesel, and solar-diesel. The diesel standalone system (DSS) was taken as the basis of comparison as the experimental location has no connection to a distribution network. The HOMER® software optimizing tool was engaged following the feasibility analysis with the RETScreen software. The wind standalone system (WSS) was found to be the optimal means of producing renewable electricity in terms of life cycle cost as well as levelised cost of producing energy at $0.15/(kW·h). This is competitive with grid electricity, which is presently at a cost of approximately $0.09/(kW·h) and 410% better than the conventional DSS at a levelized cost of energy (LCOE) of $0.62/kWh. The WSS is proposed for communities around the study site.

Keywords： photovoltaic (PV) power wind power solar-wind hybrid cost per kilowatt-hour clean energy