Energy storage industry analysis and policy introduction

Energy storage industry analysis and policy introduction

Table of Contents

Recently, mobile energy storage has attracted a lot of attention. Portable mobile energy storage can provide green power for mobile phones, computers, photography equipment, lighting and other equipment. The mobile energy storage vehicle can guarantee power supply, uninterrupted operation, and station capacity expansion.

The implementation plan of China’s new energy storage development points out that around the government, hospitals, data centers and other important power users, under the premise of safety and reliability, a batch of mobile or fixed new energy storage will be built as emergency standby power supply.

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And the centralized transfer mechanism of energy storage facilities including electric vehicles will be studied in extreme cases to improve the system’s emergency power supply guarantee capability.

In this article, we will mainly analyze the current situation and development trend of the energy storage industry in the next five years from three parts: mobile energy storage, portable power station and household energy storage.

Mobile energy storage

Mobile energy storage can be divided into three categories according to consumption scenarios.

1. General energy storage/portable power station
It is applicable to:
● Outdoor travel scenes, supplying power for mobile phones/computers, etc., to meet the diversified portable needs of outdoor travel;

● In emergency disaster preparedness and other scenarios, in earthquake and tsunami prone areas, small power generation systems can be formed with solar panels to meet the power needs of disaster victims.

According to the data, it is estimated that the market size of mobile energy storage is expected to reach 88.2 billion RMB by 2026.

2. RV energy storage

The lead-acid battery energy storage system is relatively mature and has been widely used by the finished RV; In recent years, folding solar panels will be added for standby power generation. According to the data, it is estimated that the sales volume of motorhome battery market in 2026 will be 437 million dollars; With the iterative upgrading of the energy storage system, there is a great opportunity for RV energy storage.

3. Household energy storage

Due to the high price of electricity, the stability of the power grid needs to be improved. According to the data, the global household energy storage scale will be about 7.5 billion dollars in 2020, and is expected to reach 26.4 billion dollars by 2027.

Recently, mobile energy storage has received a lot of attention

Portable power station market

The global shipment of portable power station is growing rapidly. According to estimates, the CAGR is expected to be 57% in 20-26; According to different needs and purposes, it can be divided into three categories.

● Outdoor activities

It is estimated that in 26 years, it will account for 44%. The outdoor leisure market is expected to account for 80% of the outdoor activity market, including long-distance self driving, mountain camping bases, cross-country exploration, photography and fishing.

At present, the main outdoor energy storage market is Europe and the United States; With the rapid growth of China’s outdoor customer base, China’s market has huge development potential;

The outdoor work market is expected to account for 20% of the outdoor activity market, including outdoor aerial work.

● Emergency preparedness

It is expected to account for 37% in 26 years, including flood rescue, mobile medical epidemic prevention, etc. The main market is Japan.

● Other markets

Other markets are expected to account for 19% in 26 years, such as vehicle charging, DIY, power consumption in areas lacking power, etc.

It is estimated that the market scale for emergency disaster preparedness in 2022 will be 2.02 million units, and the main market will be Japan. It is estimated that Japan will ship 1.26 million units in 21 years, accounting for 63% of the emergency disaster relief market; In addition, in the Japanese market, the shipment of emergency disaster relief demand in 2022 accounts for 87% of its total portable power station market.

RV energy storage market

RV shipments are mainly from Europe and the United States, with rapid development in China. The energy storage of recreational vehicles is mainly divided into lead-acid batteries (dominant) and lithium batteries.

According to data, the share of lead-acid batteries accounts for 97%; Lithium battery is developing rapidly (technology maturity and cost reduction). Due to the influence of battery life, replacement and modification occupy the main market, with a market share of about 76.8% in 2020; Lithium batteries are currently mainly used in the aftermarket.

The energy storage of RV is distributed along with the shipment of RV, which is still dominated by European and American markets. With the iterative upgrading of energy storage system, there is a great opportunity for RV energy storage. The ceiling of theoretical RV optical storage market is expected to be 193.9 billion dollars.

Global shipments of portable energy storage are growing rapidly

Household energy storage market

According to data, the global market size of portable generators was about 18.7 billion in 2020 and will be 30.4 billion by 2026. The current electricity problems mainly include unstable power grid and high power consumption cost.

In order to deal with this problem, households in Europe and the United States are generally equipped with emergency power generation devices. The disadvantages are high cost, high noise and high pollution. The household energy storage system is mainly based on electrochemical energy storage

According to the data, the electrochemical energy storage user side is dominant, accounting for 32.6%. Electrochemical energy storage will be further divided into lithium-ion batteries and lead-acid batteries, of which lithium-ion batteries play a leading role.

The data in 2022 shows that the lithium ion battery accounts for 88.8% and the lead-acid battery accounts for 10%. The theoretical market space of lithium ion battery is at least 1000GWh, which is huge.

China’s energy storage policy

Requirements for energy density of energy storage battery

On December 10, 2021, the relevant Chinese authorities officially released the normative document of the lithium ion battery industry, which stipulates that the energy density of the single energy storage battery should not be less than 145Wh/Kg.

And the energy density of the battery pack should not be less than 100Wh/Kg. The battery capacity should still be able to maintain more than 80% after 5000 charging and discharging cycles.

In March 2021, China’s relevant documents clearly proposed to encourage the cultivation of a number of high-end brands in consumer goods such as electronic products, and promote clean, low-carbon, safe and efficient use of energy.

Site selection and battery type requirements for energy storage plants

In 2022, the China Energy Administration issued relevant documents to prevent electric power production accidents, requiring that the electrochemical energy storage power station site should not be adjacent to or set up in the places where inflammable and explosive dangerous goods are produced, stored and operated, should not be set up in the places with dust, corrosive gases, and should not be set up in the protection area of important power facilities.

Medium and large electrochemical energy storage power stations shall not use ternary lithium batteries, sodium sulfur batteries, and shall not use power batteries for cascade utilization; When selecting power batteries for cascade utilization, consistency screening shall be carried out and safety assessment shall be carried out in combination with traceability data.

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