| ID | 088035 |
| Title Proper | Generation management using batteries in wind farms |
| Other Title Information | Economical and technical analysis for Spain |
| Language | ENG |
| Author | Dufo-López, Rodolfo ; Bernal-Agustín, José L. ; Domínguez-Navarro, José A. |
| Publication | 2009. |
| Summary / Abstract (Note) | This paper presents an hourly management method for energy generated in grid-connected wind farms using battery storage (Wind-Batteries systems). The method proposed is analysed technically and economically.
Electricity generation in wind farms does not usually coincide with the electrical demand curve. If the wind-power penetration becomes high in the Spanish electrical grid, energy management will become necessary for some wind farms. A method is proposed in this paper to adjust the generation curve to the demand curve by storing electrical energy in batteries during off-peak hours (low demand) and selling stored energy to the grid during peak hours (high demand).
With the results obtained and reported in this paper, for a Wind-Batteries system to be economically as profitable as a Wind-Only system, the selling price of the energy provided by the batteries during peak hours should be between 22 and 66 c€/kWh, depending on the technology and cost of the batteries. Comparison with flexible thermal generation has been performed.
Additionally, the results are compared with those obtained if using hydrogen (Wind-Hydrogen system, which uses an electrolyser, hydrogen tank, and fuel cell instead of batteries), concluding that the Wind-Batteries system is both economically and energetically far more suitable. |
| `In' analytical Note | Energy Policy Vol. 37,No. 1; Jan 2009:p126-139 |
| Journal Source | Energy Policy Vol. 37,No. 1; Jan 2009:p126-139 |
| Key Words | Wind Farms ; Batteries ; Hydrogen |