The first domestic heavy energy storage power station

Heavy energy storage, an efficient and economical heavy energy storage power station product similar to "pumped storage technology"

1. Product Background

In 2021, with the support of new energy policies, the overall development of the energy storage industry has been rapid. Photovoltaic power generation, wind power generation, tidal power generation, pumped energy storage, flywheel energy storage, electrochemical energy storage, compressed air energy storage, and characteristic new energy are all blooming.

In 2020, the cumulative scale of energy storage in China reached 35.6GW, with 89.30% pumped energy storage and 9.2% electrochemical energy storage. The cumulative scale will exceed 141GW in 2026.

In 2020, China abandoned nearly 20% of its solar energy and wind energy. If this 20% energy can be stored cheaply, carbon neutrality will be an important support for reaching the peak of carbon emissions.

New energy+energy storage has become a development trend. The cost of new heavy energy storage is much lower than that of pumped storage, and it will become an indispensable and important force in the new energy economy.

2.1 Comparison of energy storage types (calculated based on discharge time of 2000/200 hours)

Technical and Product Summary

At present, the utilization hours of lithium battery energy storage are low, and the cost per kilowatt hour is between 1.02 and 10.2 yuan, which is basically not profitable!

The market requires low-cost energy storage products, with the lowest cost of energy storage for heavy objects being only 0.16 yuan per kilowatt hour.

1. Heavy objects store energy in the form of "gravity". By raising a heavy object to store energy, the heavy object descends to release energy. Send stored energy to the power grid at night or when there is no wind to meet electricity demand.

2. Disadvantages of electrochemical energy storage: Improper control during product production and use can cause environmental pollution, as well as fire and explosion accidents. The treatment cost of waste electrochemical batteries is also high, which can also cause environmental pollution problems. Heavy energy storage is environmentally friendly and pollution-free.

3.1 Grid level frequency regulation market

The real-time imbalance between the power generation and consumption ends in the power grid results in fluctuations in the frequency of the grid, and LNG and thermal power units are often used as frequency modulation methods.

The large number of unstable power sources such as photovoltaic and wind power entering the grid makes the controllability of the supply side increasingly poor, and the demand for grid flexibility is becoming higher and higher.

With the adjustment of energy structure, the proportion of thermal power in small and medium-sized units is rapidly decreasing, and the supply-demand contradiction of frequency regulation capacity in the future power grid will become more prominent. The power grid level frequency regulation capability of heavy energy storage meets market demand.

3.2 Alternative Pumped Energy Storage, Applied to Large Hub Energy Storage Power Stations

At present, the container battery energy storage power station is a MW level power station composed of thousands of containers, which requires special security and air conditioning systems, and its safety and frequency of operation cannot be guaranteed.

The heavy energy storage module has a capacity of 20MWH and can quickly expand to 40MWH-100MWH, forming a grid level energy storage power station.

Pumped energy storage requires the construction of large reservoirs, which have high geographical requirements and a significant impact on the ecological environment!

Heavy energy storage power stations can be built both on land and underground, and are upgraded products for pumped storage.

4.1 Energy Storage Patent Certificate:

4.2 Introduction to Product Technical Innovation Points

Energy storage patents:

Application of special number Li 2020114170465 heavy lifting energy storage power station.

Patent number 2017107899074 Low loss high-speed integrated flywheel energy storage.

Patent No. 2017214088197 Automatic Charging and Discharging System Battery.

Patent No. 2017110140242 Automatic Charging Battery System and Its Control Method.

A power generation system with patent number 2019213317605 that extends the charging and discharging time of batteries.

Patent number 2019107577703: Power generation system and control method for extending battery charging and discharging time.

Patent No. 2020104422756 Self excited Magnetic Generator Set.

Patent number 2020208873581 Excited magnetic generator set and control method.

Patent number 2020229096997 Heavy lifting energy storage power station.

Provincial and ministerial level scientific and technological achievements:

The development of a synchronous control system for vacuum intelligent circuit breakers has solved the problem of high-quality grid connection of new energy, filling the gap in this field in China.

Unique self excited generator units, grid connection, and comprehensive new technologies ensure uniqueness in the market