CO^sub 2^ footprint reduction and efficiency increase using the dynamic rate in overhead power lines connected to wind farms

Since the first wind farms began operating in the early 1980s, several important factors have changed in the overall picture of energy politics worldwide. The total renewable wind energy capacity of Spain currently accounts for more than 20% of the total installed capacity, which makes integration i...

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Bibliographic Details
Published in:Applied thermal engineering 2018-02, Vol.130, p.1156
Main Authors: Arroyo, A, Castro, P, Manana, M, Domingo, R, Laso, A
Format: Article
Language:English
Subjects:
Carbon dioxide
Clean energy
Electric power distribution
Energy efficiency
Integration
Magnetic effects
Power lines
Smart grid
Wind farms
Wind power
Wind power generation
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Summary:Since the first wind farms began operating in the early 1980s, several important factors have changed in the overall picture of energy politics worldwide. The total renewable wind energy capacity of Spain currently accounts for more than 20% of the total installed capacity, which makes integration into the grid challenging for wind farm owners as well as electricity transportation and distribution companies. The smart-grid concept, which focuses on realtime monitoring and dynamic rating operation of power lines, is an important component in the solution to these new challenges. This paper explains how a more efficient operation of energy-generating activities via dynamic rating of the electric grid due to a better knowledge of the main parameters contributes to more clean, renewable energy and decreases the CO2 footprint. The dynamic rating operation of a Spanish overhead power line is analysed, and different scenarios are studied. The dynamic rate achieved in 2015 has saved more than 1100 tonnes of CO2 and has generated over 240.000 € of extra income. This dynamic rating operation also increased the actual annual energy generated from 231.5 GW h to 834.7 GW h with only a 2% greater loss along the line due to Joule and magnetic effects.
ISSN:1359-4311
1873-5606