The domestic industrial and commercial energy storage market is developing rapidly, and at the same time as the market scale is growing by leaps and bounds, how to ensure the rationality, economy and safety of energy storage project construction requires an understanding of the energy storage system and the design and construction process. The common problems in the design and construction of industrial and commercial energy storage systems are summarized for reference.
1. What are the site requirements for the installation of energy storage power stations?The site is located outdoors, try to choose a warehouse away from the office space and dense crowds, and there is no hazardous chemical warehouse within 20 meters. A place close to the power distribution room of the access point (within 100m recommended) and convenient for cable arrangement. Consider hardened sites that are easy to transport, lift, and can bear loads. The actual project needs to reserve safety protection channels and isolation channels according to the requirements of the local fire department. 2. What procedures do I need to go through to install an energy storage power station?
In addition, according to the requirements of different regions, it may involve other review procedures such as fire protection design review, environmental impact assessment report, case evaluation report, etc., so it is necessary to understand the local requirements for industrial and commercial energy storage acceptance and approval, and prepare the project budget in the early stageThe above procedures are all undertaken by the integration operator, and the owner can cooperate with the provision of information.
3. What are the construction processes of energy storage power stations?How long does the construction period take?The construction process of industrial and commercial energy storage power station includes preliminary capital acquisition survey, scheme design, project filing, drawing design, access approval, construction and construction, equipment commissioning, completion acceptance, and the overall construction cycle is determined by the time required by different project processes, and the construction period is about 1-15 months;According to the different construction plans of different projects, in order to minimize the impact on the production of electricity enterprises, the shortest power outage construction time is generally about 2 hours. 4. Does the energy storage power station have an impact on the basic electricity cost of the enterprise?
The basic electricity charges of electricity enterprises are mainly based on capacity and pay-as-faire. If it is billed by capacity, the basic electricity fee is fixed, and the addition of the energy storage system will not have an impact on the basic electricity fee under the condition that it does not exceed the total transformer capacity of the enterpriseIf the pay-as-you-go billing is pay-as-you-go, it is possible that the energy storage discharge bears the load, reducing the maximum demand and thus reducing the basic electricity bill. In general, when designing energy storage capacity during the load period of energy storage charging, the total demand will be controlled within the maximum demand as much as possible, and if the demand is increased, the overall output of energy storage can be controlled through the energy management system, or the excess part will be deducted from the income according to the loss cost. 5. There are some inductive capacitive loads in the power consumption of the plant, does it have any impact on the operation of energy storage?
The energy storage system is a grid-connected system, non-independent load, and the AC coupling mode is connected to the power distribution system of the plant when the energy storage is discharged, and it is not the energy storage system that directly drives the equipment to start, if there is an inductive and capacitive load, the city grid also exists in the system to play a supporting role when starting, and will not have a direct impact on the energy storage system.
6. If the enterprise has a third-party photovoltaic power station, will the new energy storage affect the revenue settlement between the two?
Whether the new industrial and commercial energy storage system will have an impact on the original photovoltaic income depends on the consumption of the original photovoltaic, such as the daytime electricity consumption of the enterprise after the photovoltaic is basically no remaining and there is still a large amount of load, at this time, the new energy storage as a supplementary part of the enterprise's electricity consumption has no direct impact on the photovoltaic;If the enterprise consumes electricity during the day and there is still a lot of surplus electricity after the photovoltaic is consumed, the electricity consumption enterprise has no additional electricity demand, and the new energy storage system has no additional consumption spaceIf the enterprise consumes less electricity during the day and has less surplus electricity after absorbing photovoltaic power and is concentrated in the noon period, the new energy storage system will have the possibility of absorbing photovoltaic electricity, which needs to be comprehensively considered according to the specific situation of the project and the income, and if necessary, the tripartite negotiation between the electricity enterprise, the photovoltaic property owner and the energy storage construction party is required.
7. Will the energy storage power station produce losses?
In addition to battery charging and discharging, the energy storage system requires external power supply for internal fire monitoring, air conditioning, temperature control system, etc., and there is some loss, which needs to be taken into account and deducted when calculating and sharing revenue. 8. What are the main contents of the operation and maintenance of energy storage power stations?
The industrial and commercial energy storage power station is an unattended power station, and it is necessary to regularly maintain and inspect the station
For the liquid-cooled energy storage integrated cabinet, it is also necessary to regularly check the status of the coolant, replace the coolant regularly, and regularly check whether the joints of the liquid cooling device are normal.
Summary:Industrial and commercial energy storage is one of the most important application scenarios on the user side, and the demand of industrial and commercial energy storage projects varies greatly, the application environment is complex, and the revenue path is diversifiedAt the same time, because the installation, commissioning and operation of industrial and commercial projects need to be carried out within the enterprise park, the project is highly professional, so it needs to be reasonably designed in combination with the actual project situation in the construction.