A new market breakthrough for lithium iron phosphate batteries is the
explosion of grid energy storage. Lithium iron phosphate batteries will benefit
greatly from the growth in grid energy storage demand. The growing demand for
grid energy storage has driven domestic demand for lithium iron phosphate
batteries. At present, domestic power grid energy storage is still in the stage
of being dominated by power grid groups. When it comes to choosing lithium
battery suppliers, the top domestic lithium iron phosphate battery companies are
their mainstream choice.
A new market breakthrough for lithium iron phosphate batteries—the
explosion of grid energy storage
According to the survey, in line with the national power reform and the
power grid group to ease its own power supply pressure, the demand for grid
energy storage projects, mainly transmission (distribution) side energy storage
at the transformer end and user-side energy storage at the industrial and
commercial end, has increased. According to multiple power grids this year
Judging from energy storage bidding and implementation projects, energy storage
systems using lithium iron phosphate batteries have become the mainstream choice
for power grid groups and operators.
At present, the lithium batteries used in energy storage in China are still
mainly lithium iron phosphate series. This time, the demand for energy storage
in the domestic power grid has exploded, which will directly drive the demand
for lithium iron phosphate batteries. The main reasons are: first, the explosion
of grid energy storage demand provides a way to reduce overcapacity for lithium
iron phosphate batteries that cannot meet the new subsidy policy for new energy
vehicles; second, in recent years, power battery companies have improved in
technology, cost and other aspects. Development, lithium iron phosphate
batteries have cost-effective advantages over lead-acid and lead-carbon
batteries.
Grid energy storage is driving demand for lithium iron phosphate batteries.
Currently, many lithium battery companies that have signed energy storage
projects are "too busy" to start construction of power and energy storage
capacity at the same time. Small and medium-sized lithium battery companies in
the industry are seeking OEM cooperation. . It is foreseeable that domestic grid
energy storage will win a new market breakthrough for lithium iron phosphate
batteries.
In the past month, CATL, Lishen, Zhongtian Energy Storage, Kelu, etc. have
all won orders in the grid energy storage market, which has opened up a new
world for lithium iron phosphate batteries. Nowadays, lithium iron phosphate
batteries have become the mainstream of domestic energy storage, especially grid
energy storage applications. Energy storage will achieve a truly large-scale
explosion in one or two market segments by 2020 at the latest. It is estimated
that by 2020, the total demand for lithium battery energy storage on the power
generation side and the grid side will be 8GWh.
From the perspective of the entire energy storage application environment,
lithium battery energy storage is mainly used in communication base stations,
user-side peak shaving and valley filling, off-grid power stations, microgrids,
rail transit, UPS, home energy storage, big data centers and other projects.
However, combined with the main domestic environment, communication base
stations leave little market space for lithium battery companies; some lithium
iron phosphate battery companies have begun to dominate UPS backup power supply;
home energy storage is subject to the electricity price mechanism in China and
the land intensiveness is still blank. ;The big data center market is large, but
it is still in the development stage.
On the one hand, the heating up of the grid energy storage market has found
a way out for overcapacity lithium iron phosphate batteries; on the other hand,
the technology of lithium battery companies has improved, and lithium iron
phosphate batteries can basically meet the auxiliary services of existing grid
energy storage; at the same time, in recent years, Lithium battery companies
have reduced costs, and the unit price of lithium iron phosphate batteries has
dropped. From a long-term economic perspective, it has a comparative
advantage.
Advantages of using lithium iron phosphate battery energy storage power
station for peak shaving:
1. Use lithium iron phosphate battery as the energy storage medium, which
has the advantages of strong safety and reliability, high energy density, fast
charge and discharge rate, and long service life; SVG is used to replace the
traditional reactive power compensation device, and through real-time tracking
of the current, Instantaneous dynamic compensation of reactive power and
harmonics.
2. Adopting "decentralized layout and centralized control", the eight
grid-side energy storage power stations are uniformly controlled by the
provincial power grid, making full use of the existing substation resources of
the grid for construction.
3. The primary and secondary equipment are highly integrated and adopt
standard prefabricated cabin layout to achieve modularization of design scheme,
universal equipment foundation, standardization of construction, shortening the
construction cycle and saving construction costs.
4. The energy storage power station is connected to the source-grid-load
system, and uses the ability of energy storage equipment to quickly transform
the operating status to realize the millisecond-level transformation of energy
storage equipment from "load" to "power supply", thus establishing a
"large-scale source-grid-load-storage friendly environment". System" lays the
foundation.
5. Optimize the main electrical wiring, optimize the one-to-one
correspondence between the incoming cabinet and the PCS cabin into "one-to-four,
one-to-three", connect the multi-faceted PCS cabins to each other and then
connect to one incoming cabinet, greatly reducing equipment costs. , effectively
reducing the floor space.
At present, lithium iron phosphate batteries have become the mainstream of
domestic energy storage, especially grid energy storage applications. According
to multiple grid energy storage bidding and implementation projects this year,
energy storage systems using lithium batteries have become a priority for grid
groups and operators. Mainstream choice. Lithium iron phosphate batteries have
cost-effective advantages over lead-acid and lead-carbon batteries.
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