Dominican Republic’s First Energy Storage Arrays Help Island’s Grid to Prevent Blackouts
AES Dominicana’s new Advancion arrays brought online and help keep
grid stable during September hurricanes
AES Dominicana announced that it brought online 20 megawatts (MW) of new
battery-based energy storage arrays at two sites in the Dominican
Republic, which played a key role in maintaining grid reliability in
September when Hurricanes Irma and Maria struck the island. The two 10
MW arrays, which were supplied by AES Energy Storage, are the first of
their kind in Central America and the Caribbean. Located on sites in the
Santo Domingo region, both arrays are providing critical grid
reliability services for the island by improving the efficiency and
contributing to the stability of the Dominican Republic’s interconnected
national electricity system (SENI).
“We are very excited about developing these energy solutions for the
benefit of the Dominican Republic, saving millions of dollars in state
funds, which can be redirected to more needed areas such as public
health, education and security,” said Edwin De Los Santos, President of
AES Dominicana.
AES Dominicana is using its Andres and Los Mina DPP Advancion energy
storage arrays to provide fast, accurate frequency control to the
Dominican grid, balancing second-to-second variations between
electricity consumed and produced. By adding energy storage instead of
utilizing existing thermal power plants to maintain frequency, the
Dominican grid operator can enable the power plants on the island to run
at their most efficient generating level while the battery systems
absorb and discharge energy on the grid as needed. AES Dominicana’s 20
MW of energy storage is providing fast-response, critical reliability
services that would otherwise be performed by a traditional thermal
power plant three times the size.
In September 2017, the Dominican grid operator put the two energy
storage arrays to a critical test: asking AES Dominicana to keep them
online and operational to ensure grid reliability as two hurricanes,
Irma and Maria, each approached the island. Both energy storage arrays
performed more than double the amount of work during the storms as
normal, helping keep the Dominican grid operating during category 3 and
4 hurricane conditions, even as nearly 40 and 55 percent of the island’s
power plants were forced offline during Hurricanes Irma and Maria,
respectively.
“AES Dominicana’s energy storage arrays enhanced the Dominican grid
during a most trying time, helping keep vital power resources online,”
said John Zahurancik, President of AES Energy Storage. “Not only does
energy storage improve reliability of the grid on a daily basis, this
experience demonstrates how it can add to overall resilience under
extreme conditions.”
From supplying day-to-day balancing services and flexible peaking
capacity to making island grids more resilient in the face of extreme
weather events, advanced energy storage can provide island utilities
with the critical and cost-effective flexible resource they need to
provide reliable power to their communities.
To learn more about how energy storage can support grid resilience,
download the case study with real-time data from Hurricane Irma at http://aesenergystorage.com/island-resilience.
About AES Energy Storage
AES Energy Storage is a leader in commercial energy storage solutions,
which improve flexibility and reliability of the power system, and
provide customers with a complete alternative to traditional peaking
power plants. AES Energy Storage introduced the first grid-scale
advanced battery-based energy storage solution in commercial operations
in 2008 and operates the largest global fleet of battery-based storage
assets in service today, with 478 MW of energy storage projects in
operation, construction, or in late stage development in seven
countries. The company’s Advancion® 4 energy storage solution
is available for sale to leading utilities, power markets, and
independent power producers, and AES Energy Storage and its partners can
manage installations from concept to operation with a market-proven
solution that integrates best in class battery and power conversion
technologies. To learn more, please visit www.aesenergystorage.com
or @aes_es
on Twitter.
The AES Corporation and Siemens AG announced in July 2017 an agreement
to form Fluence, a new global energy storage technology and services
company. Fluence will operate independently of its parent companies,
combining the robust capabilities and expertise of both AES’ subsidiary,
AES Energy Storage, and Siemens’ battery-based energy storage solutions
group under its Energy Management division. The transaction is expected
to close in the fourth quarter of calendar year 2017, subject to
regulatory and other approvals.
About The AES Corporation
The AES Corporation (NYSE:AES) is a Fortune 200 global power company. We
provide affordable, sustainable energy to 17 countries through our
diverse portfolio of distribution businesses as well as thermal and
renewable generation facilities. Our workforce of 19,000 people is
committed to operational excellence and meeting the world’s changing
power needs. Our 2016 revenues were $14 billion and we own and manage
$36 billion in total assets. To learn more, please visit www.aes.com.
Follow AES on Twitter @TheAESCorp.
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