Page 8 - 全球能源互联网资讯-第12期 英文（网络版）

Global Information

construction, play a demonstration role;
steadily promote electricity, coal, oil
and gas and electrical equipment and
other traditional areas of the standard
system optimization, do a good job
of the current standard system and
standardized management mechanism
and the new system mechanism of
convergence and transition. (Source:
NEA China)

China installed 2,586 MW of
new energy storage installations
in 2020
According to the China Chemical and
MIT Study: Transmission Is Key to a Low-Cost, Physical Power Industry Association
Decarbonized US Grid - Energy Storage Application Branch
Study after study over the past decade has concluded that (CESA) statistics, in 2020, China's
expanding the U.S. transmission grid will play a key role in total installed capacity of newly
decarbonizing the country’s electricity system. According commissioned energy storage reached
to Patrick Brown, the MIT researcher who conducted 2,586 MW, including 1.8 GW of pumped
the study, the costs of doing so would be much lower storage (69.5%), ranking first; 785 MW
than forcing regions without transmission connections of electrochemical energy storage
6 to overbuild renewables and energy storage to reach the (30.4%, up 15.7% year-on-year), ranking
same decarbonization goals. First, nationwide transmission second. Among them, the distribution
allows power-sharing across regions facing widely different of electrochemical energy storage, by
weather systems that drive variation in wind and solar type, lithium-ion batteries 762 MW,
generation. Second, it allows wind and solar development lead-acid batteries 14 MW. According to
to be concentrated in the sunniest and windiest parts of application scenario, grid-side energy
the country so that more clean energy can be supplied by storage 296 MW, centralized new energy
less installed generation capacity, as well as requiring it + storage 259 MW, power-side auxiliary
to be curtailed less often, Brown said. All of these benefits services 202 MW, user-side energy
can be captured with solar, wind, existing hydropower storage 16 MW, distributed and micro-
and lithium-ion battery technologies at projected 2030 grid energy storage 12,000 kilowatts.
prices, he added. That means building out transmission According to region, the top 5 regions
could avoid the need for long-duration energy storage, are East China 286 MW, Northwest
new nuclear power technologies or green hydrogen and China 170 MW, South China 167 MW,
other carbon-neutral replacement fuels for natural-gas Southwest China 91 MW, North China 47
power plants — technology options that are often seen as MW. (Source: ESCN)
necessary to reach 100 percent carbon-free electricity but
which are untested and may not reach cost-effectiveness Fossils fuels to lead as Africa
in the next few decades. The study notes that at current doubles its energy capacity this
levels of U.S. interconnection, the average cost of electricity decade
generation would be 9 cents/kWh if the country's system Researchers led by Oxford University
were fully decarbonized; however, as the U.S. Independent have put together a comprehensive
System Operator (ISO) and Regional Transmission forecast of energy developments across
Organization (RTO) jurisdictions gradually interconnect the African continent up to 2030.
the grid, this cost is expected to drop to 7 cents/kWh, and Based on analysis of data on more than
will fall further as the level of interconnection continues to 3,000 power plant projects across 54
increase in the future. (Source: greentechmedia) countries, the report predicts a doubling

Global Energy Interconnection Information Global Energy Interconnection Information