BESS Training Part 2

Content

1.Standard ESS Product

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1.4 Energy Storage Solution for Customization Case

1.4.1 200kw/1.4mwh Liquid Cooling ESS Container

Case Information:

• Peak Shaving Application at Fish Pond
• 400V, 50Hz local, 5 Hours usage time
• Hybird grid BESS Device
• 200KW load power

1.4.2 1.6mw/3mwh Liquid Cooling ESS Container

Case Information

• Dynamic Capacity-Increase Application at Tire Factory
• 400V, 50Hz local, 24Hours usage time
• Hybird grid BESS Device
• 1.6MW load power

1.4.3 500kw/1mwh Liquid Cooling ESS Container

Case Information:

• Peak Shaving Application at Factory
• 400V, 500kW load power
• Hybird grid BESS Device

2. Type of Power Supply

Divided into 3 types：Grid-connected, off-grid, hybrid-grid

2.1 Grid-connected power generation:

Industrial and commercial energy storage systems are connected to the power network and perform two- way transmission of energy through the power grid. When the grid power supply is stable, the energy storage system can be charged; when grid demand increases or electricity prices are high, the energy storage system can be discharged to provide additional power to the grid. This model can improve energy efficiency, reduce energy costs, and provide stability and flexibility to the grid.

2.2 Off-grid power generation:

Industrial and commercial energy storage systems operate independently, disconnected from the main , and provide energy through solar energy, diesel generation, etc. The off-grid mode is suitable for remote areas or environments with unstable power supply, and can provide reliable power support to ensure the normal operation of facilities.

2.3 Hybrid-grid power generation:

In some cases, industrial and commercial energy storage systems need to operate independently during grid failures or power outages, when the energy storage system is off-grid. The energy storage system will automatically switch to off-grid mode and continue to provide power to the load, ensuring continuous power supply to the facility. Once the grid returns to normal, the energy storage system can be reconnected to the grid and continue to coordinate energy supply and demand.

3. Application of BESS

3.1 Photovoltaic storage matching:

Because photovoltaics are indirect and volatile, solar power generation and energy storage systems are combined to achieve efficient utilization and storage of solar energy.

3.2 Peak shaving and valley filling:

Charging when electricity consumption is low and electricity prices are low, and discharging to the load during peak periods, thereby saving electricity expenses.

3.3 Dynamic capacity increase:

When the electricity consumption of the electricity consumer increases rapidly, the original transformer can no longer meet the production demand, and it is necessary to apply to increase the transformer capacity. The cost is often higher and the approval period is longer. If you install an energy storage power station, you can delay the expansion of the transformer, which is low cost and quick to install.

3.4 Backup power supply:

In applications that require high power grid continuity, industrial and commercial energy storage systems can be used as backup power supplies when the power grid is outage. They can replace the functions of traditional UPS power supplies and provide backup power supply guarantee for key uninterruptible power loads in industrial and commercial parks, to deal with sudden power outages.

3.5 Power spot trading:

Participate in power spot trading through virtual power plant (VPP) aggregation.

3.6 Power ancillary services

Ancillary services will become an important part of the power market transactions. Industrial and commercial energy storage can also serve as a new profit channel by providing ancillary services in the power market.

4. Project Requirement

In BESS device, pls help to provide the following 4 points to provide the proposal and speficiation:

What is the purpose of the customer's inquiry? What kind of problem does the customer want to solve? What is the customer's usage environment or scene? What is the role of the customer? Is it an EPC or an end user or a dealer or a power company? What is the customer's background?

There are 4 mainly aspect for our technicians:

4.1

The expected power supply method:

01 Off-grid (self-use, excess electricity is stored in the battery, not connected to the Internet),

02 On-grid (energy storage is required, and after self-use, the remaining electricity can be connected to the grid),

03 hybrid grid connection (equipped with energy storage battery, which can store power from the grid, but does not connect to the Internet).   

4.2

Is the project within regular 1000V or a high-voltage grid-connected project?

4.3

Are solar panels (power(wp) of the solar system) required? If so, what is the local sunshine hours? The project in which customers use energy storage is first photovoltaic, then the energy storage system, and finally diesel generators?

4.4

The load power(kw)/capacity(kwh) of the energy storage system, the expected usage time requirement, the usage scene such as integrated light and storage, and the on-site usage environment such as factory or?