POWER Top Plants Supp December 2021 - Cover3

December 2021
POWER AWARDS
Haiyang Nuclear Power Plant, China
T
he 2,340-MW Haiyang nuclear power
plant in eastern China's Shandong
province became the world's second
Westinghouse AP1000 nuclear power
plant completed when it began operations
in 2018. It's much-watched construction
was delayed by nearly four years owing to
first-of-a-kind pains and intense scrutiny
by Chinese regulators.
However, while Haiyang's overall development plan calls
for four more 1-GW reactors to be built at the site (and it has
space for two others), the plant has more recently distinguished
itself for a set of remarkable projects that would expand
its relevance and revenue. Shortly after the plant began
commercial operation, State Power Investment Corp. subsidiary
Shandong Nuclear Power Co. (SDNPC), Haiyang's owner
and operator, and Tsinghua University began exploring using
extracted steam and residual heat from its nuclear units to simultaneously
generate district heat and desalinated water. In
November 2019, the plant executed Phase 1 of the unique cogeneration
project, providing heat to a 700,000-square-meter
area around the plant, including its employee dormitory and
some residential areas in Haiyang, which has a population of
about 658,000. Phase 2 of the project will expand the heating
area by 4,500,000 square meters and is envisioned to provide
" full coverage " to the urban area of Haiyang City. Phase 2 beCourtesy:
State Power Investment Corp.
gan construction in November 2020, and completion is expected
during the 2021 winter season.
Plans are also underway to expand the heating project for
integration of a large-scale system that could produce up to
8,400 tons per day of seawater desalination, providing another
crucial resource to Shandong and Jiaodong Peninsula, which
is a severely water-deficient region. In May 2021, SDNPC said
the system demonstrated production of fresh water at a temperature
of 95C. As envisioned, the phased " Shandong Haiyang
Nuclear Energy Heating Project " could provide 300-400
terajoules of heat per year and produce 30 million tonnes of
fresh water.
In addition to steam extraction for heating and desalination,
SDNPC is also exploring a more " comprehensive utilization " of
Haiyang that could include a large-scale 500-MWh heat storage
system (via heating storage tanks) and hydrogen production by
electrolysis. SDNPC has said its ultimate goal is to transform
Haiyang away from a competitive asset into a complementary
one that addresses decarbonization and resource challenges. ■
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