Environmental Engineering Reference
In-Depth Information
Renewable Energy and Transmission
Networks
Luis Olmos, Michel Rivier and Ignacio P
rez-Arriaga
é
Abstract Achieving the integration of large amounts of Renewable Energy will
certainly impact
the development and operation of the transmission network.
Making ef
cient use of Renewable Energy primary resources within a large region
will require the transportation over long distances of large amounts of energy and
will lead to less predictability and more stress in the use of the transmission network
to cope with the intermittency and variability of such generation resources. This
chapter identi
es and discusses the main impacts related to the existence of
renewable generation on those aspects of the functioning of the system that are
related to the transmission grid. Expansion planning may probably need to take
place in an integrated manner at regional level; while long-term transmission rights
will need to be somehow accounted for in the planning process; these rights will
have to be made available to Renewable Energy based generation; changes in
electricity transmission technology may be necessary; markets will probably need
to move closer to real time to better address imbalances caused by Renewable
Energy generation; and the number of connection requests will probably increase, at
least in those areas with abundant renewable primary resources; these resources
may need to be provided priority access to the grid;
nally, due to the inability to
appropriately predict network use, transmission tariffs computed ex-ante will be less
ef
ect future system conditions; on the
other hand, updating network charges periodically defeats their main purpose of
sending credible locational signals to prospective investors.
cient, since they will be less likely to re
c
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