Most distributed wind turbines installed in 2014 were connected
directly to distribution lines to serve local loads. Distributed wind
turbines can also be installed either off-grid or grid-connected at
local sites to offset all or a portion of a site’s electricity
consumption. Compared with electric utility wind facilities, distributed
wind turbine installations are often smaller units, below 1 megawatt
(MW), and thus may not appear on EIA’s survey of utility-scale electric generators,
which has a 1-MW threshold at the project level. Although some
large-scale turbines (1 MW or greater) are used in distributed
generation applications, large-scale turbines are more often used at
wind farms for wholesale power generation, which is sent through
transmission lines to more distant customers.
Based on information in the U.S. Department of Energy’s Distributed Wind Market Report,
most of the 2014 distributed wind capacity was installed on
institutional sites, such as schools, universities, and electric
cooperatives. Government installations on city, municipal, or military
facilities made up more than one quarter of 2014 installed capacity.
Other sectors (industrial, commercial, agricultural, and residential)
were relatively small in terms of capacity, but larger in terms of
number of installations, as the average turbine size on these sites is
relatively small compared with institutional and government sites.
Even though these tax credits are still available, the expiration of
the cash payment option drastically reduced the installation of small
and mid-size wind turbines. Further affecting the outlook for
distributed wind is the U.S. Internal Revenue Service requirement, added this year, that small wind turbines meet performance and safety standards in order to qualify for the ITC.
Other factors cited in the recent decline in distributed wind
installations are the relatively low price of grid electricity and lower cost of solar photovoltaic systems,
which also receive the 30% ITC. Nonhardware costs associated with
distributed wind, such as permitting, financing, installation, and
supply chain costs, have not fallen as much as they have for solar
photovoltaics. U.S.-based manufacturers and supply-chain vendors in the
distributed wind market have been vulnerable to market downturns,
preventing the market from growing at a faster rate. For these reasons,
U.S.-based manufacturers may look to international opportunities,
particularly in Japan and South Korea, to find more favorable markets.
http://cleantechnica.com/2015/08/28/distributed-wind-turbines-face-challenges-in-domestic-market/
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