Realize power system peak shaving and valley filling, renewable energy storage power generation fluctuation smoothing and tracking plan processing, efficient system frequency regulation, and increase power supply reliability.
1. What is an energy storage power station?
An energy storage power station is a power station established to adjust peak and valley power consumption issues. An energy storage power station is composed of an energy storage unit, auxiliary facilities, access devices, and measurement and control devices. The establishment of energy storage power stations is to store the electricity we waste during low peak periods of electricity consumption and release it back to the grid during peak electricity consumption periods to achieve the purpose of peak shaving and valley filling.
2. Composition of energy storage power station
The energy storage power station system can be divided into six main parts, namely renewable energy, energy transmission system, conversion system, battery monitoring system（MBS）, management system and network access system, battery energy storage system design.
3. Enhanced renewable energy
- Improve power quality
Currently, grid operators are more concerned with preventing outages than with power quality. Power quality refers to a complete set of indicators that enable appliances and systems to function as intended, without causing significant waste in performance.
The 921st century power quality standards trend refers to providing power without dips, spikes, chaos and interruptions. Poor power quality can lead to malfunctions, premature failure, or inoperability of equipment. Critical applications in hospitals and emergency services require a high degree of safety. Some experts even predict that consumers will be offered different levels of quality at different prices.
- Higher utilization of assets
In most industries, supply and demand are almost equally important. But in the power industry, demand remains king. Utilities must be able to predict demand as it emerges before delivering electricity. I don’t know when the dosage will appear. “Peak” and how high must the common utility be at all times? “peak” and provide usage at all times, even though they know the peak time does not exceed 5%.
Storage technology can provide an economic buffer and a safety factor while meeting demand.
Because wholesale electricity prices vary throughout the day, when you sell power is just as important as how much power you sell. The cost of storing electricity produced during off-peak hours is easily offset by the value during peak hours. New capital investments in new equipment may be reduced.
- Enhanced renewable energy
Renewable energy sources such as wind and solar are variable and difficult to predict. Storing energy can help solve problems associated with renewable energy and help these technologies develop faster and achieve greater market size.
From low-value, unplanned power sources to high-value, reliable products through storage of renewable energy power resources. Storing renewable energy and releasing it through contracts makes electricity more valuable. Off grid battery storage systems are a fraction of the global energy storage capacity available from a wider range of generation sources, making them more valuable.
4. What are the site requirements for installing energy storage power stations?
- The site is located outdoors and there are no hazardous chemical warehouses within 20 meters.
- Try to be as close to the power distribution room as possible, and the furthest distance from the power distribution room should not be more than 100 meters.
5. How long is the construction period of an energy storage power station? Does the power need to be cut off? How long will it take to stop?
After the formalities are completed, the formal construction period is about 1-1.5 months; a short-term power outage is required to install the grid-connected cabinet, and the minimum power outage time is about 2 hours.
6. Will the energy storage power station increase the owner’s basic electricity bill?
Won’t. If it is billed based on capacity, the basic electricity bill is fixed. If billing is based on demand, it is also possible that energy storage and discharge bear the load, reducing the maximum demand and thus lowering the basic electricity bill.
When designing energy storage capacity, the capacity and load of the transformer have been considered. Energy storage charging will not increase demand. If demand increases, the energy management system (EMS) will automatically identify and stop energy storage Charge.
7. Will the energy storage power station cause losses? Who is responsible for any losses?
There are losses, which have been taken into account and deducted when the parties share the profits.
8. Who is responsible for safety problems in energy storage power stations?
If Party A’s equipment malfunctions or is damaged due to Party B’s equipment, Party B shall compensate Party A for the resulting losses. At the same time, Party B is responsible for insuring machine damage insurance and all property risks related to the project during the performance of the contract, and shall bear the insurance premium. The amount of property insurance insured shall not be less than the actual value of the insured property.
FAQ
The daily operation of the power station does not require users to cut off power.
No, energy storage equipment will not have a negative impact on users’ power quality.
The switching strategy needs to be set in advance. Energy storage equipment, unlike UPS, cannot achieve fully automatic switching.
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