Understanding commercial solar inverter - role and installation

The commercial solar inverter is a device designed to convert the DC power generated by solar panels into AC power and combine it with an energy storage system for energy management and optimization.

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In commercial and industrial environments, it can be used for power storage, load scheduling, peak and valley tariff arbitrage, improving grid stability, and as a backup power source.

Concepts and principles of commercial solar inverter

• The commercial solar inverter integrates the inverter of the photovoltaic power generation system and the charge/discharge control function of the energy storage system. When the solar energy is sufficient, it not only drives the loads, but also stores the excess power in the battery; When the solar energy is insufficient or the power grid is down, the stored power is released from the storage device for use by the customer.
• The commercial solar inverter is usually equipped with bi-directional conversion capability, i.e., it can convert AC power into DC power to be deposited into the battery in charging mode, and invert the DC power in the battery into AC power to meet the requirements of grid quality in discharging mode.

The role of commercial solar inverter

• Increase self-sufficiency and reduce dependence on the public grid.
• Smoothing the volatility of photovoltaic power generation and improving the stability of power supply.
• Utilizing the difference between peak and valley electricity prices to reduce the cost of electricity consumption for enterprises.
• Participate in demand response services to assist in the stable operation of the power grid.
• Provide emergency power protection in case of grid failure.

Prices of commercial solar inverter

Prices for commercial solar inverters vary by brand, model, power rating, feature configuration, technical complexity, and other factors, and usually have a wide price range. The following information may provide a general reference:

1. In September , Sungrow announced the price of commercial and industrial liquid-cooled energy storage system PowerStack 200CS series as 1.56 RMB/Wh in its new product launch event, and the larger the purchase volume, the more the unit price discount. The price here is calculated based on the comprehensive cost of the whole energy storage system, not just the inverter part. However, for understanding inverter prices, this data can help us understand the overall cost structure of high-end energy storage solutions currently on the market 2. Specifically, the price of a single inverter item is usually quoted on a cost per kilowatt (kW) or megawatt (MW) basis. For example, different commercial solar inverter suppliers may sell from a few thousand dollars to hundreds of thousands of RMB depending on the power of the device. 3. commercial solar inverter may include both grid-connected and off-grid models, as well as whether or not it has features such as battery management system (BMS) integration, intelligent scheduling, and grid support services, all of which will affect its final selling price.

Industry forecast for commercial solar inverter

The following are some of the key trends in the commercial solar inverter market in the coming years:

• 1. Market demand growth: With the transformation of the global energy structure to low-carbon and cleaner, governments are increasing their support for renewable energy, as well as the development of distributed energy systems and smart grid technology. Commercial and industrial users for optimizing the efficiency of energy use, to achieve the increasing demand for power cost control, which will drive the deployment of photovoltaic energy storage system, which in turn boosts the market demand for energy storage inverters.

• 2. technological advances and cost reductions: advances in energy storage technology makes the battery costs continue to decline, while the inverter efficiency, service life extension, these will promote the commercial and industrial PV energy storage projects to improve the economy, and further stimulate the expansion of market capacity.

• 3. Policy-driven: many countries and regions have introduced policies conducive to the application of energy storage, such as subsidies, tax incentives, etc., in order to support the development of clean energy grid-connected and independently operated projects, which will also accelerate the popularity of storage inverters in the commercial and industrial sectors.

• 4. Application scenario expansion: In addition to the basic functions of peak shaving and valley filling and standby power, energy storage inverters also play an increasingly important role in virtual power plants, microgrids, demand response, etc. Diversified application scenarios help to broaden its market space.

• 5. Layout and competition pattern of head enterprises: Leading enterprises in the industry will continue to invest in R&D, launch more efficient and smarter products and services, and lead the whole market forward.

Installation requirements for commercial solar inverter

As the core equipment of the power station, the installation of commercial solar inverter is not done properly, which will directly affect the normal power generation, and even produce safety hazards. So, what are the places to pay attention to the installation of commercial solar inverter?

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• Ensure that there is no strong electromagnetic interference from other electronic or electrical equipment at the installation location.
• During the operation of commercial solar inverter, the humidity of the chassis and heat sink will be relatively high, please do not install the commercial solar inverter in a position that is easy to touch.
• Commercial solar inverter should be installed in a well-ventilated environment to ensure good heat dissipation.
• It is recommended to choose a sheltered installation location or build an awning.
• The ambient temperature of the installation should be -30-60°C and the site should be clean.
• The installation location should be on a fixed and solid surface, such as a wall, metal bracket, etc. The inverter should be mounted on a reliable surface.
• The installation location should ensure that the inverter is reliably grounded, and that the grounding metal conductor material is the same as the inverter's reserved grounding metal material.

Installation considerations for commercial solar inverter

• Before commercial solar inverter installation you should first check that the inverter has not been damaged during transportation.
• Always cover the PV panels with impervious material or disconnect the DC side circuit breaker before making electrical connections. Exposed to sunlight, the PV array will generate dangerous voltages.
• All installation operations must be performed and only by specialized technicians.
• The cables used in a PV power system must be securely connected, well insulated, and of the proper gauge.
• All electrical installations must meet local and national electrical codes.

Tycorun company mainly focuses on the user-side inverter and lithium energy storage battery market, mainly selling 12v inverter, its inverter waveform is pure sine wave, specific specifications have 500w, w inverter, w inverter. It can be applied in different scenarios, such as home energy storage backup, inverter for van, inverter for office use.

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Companies often shop for industrial power inverters because they have products and services to provide constantly. In finding the right power inverter, these companies usually base their search on the price tag given by inverter manufacturers. The most economical ones chosen by most companies are the residential or commercial power inverters. Below are the differences between an industrial power inverter and a commercial power inverter:

• Housing. Power inverters can be damaged by falling objects, whether they’re commercial or industrial. Industrial inverters have more tightly sealed and more durable housings than commercial ones. It is vital that companies get power inverters made for heavy duty work environments. If they opt for commercial power inverters, the mechanism inside the inverter won’t be protected against highly damaging falling objects.
• The load capacity. Work in various industrial environments involves equipment that requires more power than ordinary appliances in homes. The load capacity of industrial power inverters is greater than commercial grade power inverters. If a company chooses a commercial power inverter, this inverter will malfunction easily because it is forced to carry a higher energy load than the load rating given by its manufacturer.
• Certificate (NEBS Level 3). The NEBS Level 3 certificate is always attached to industrial inverters. This certification is the highest level of protection against several detrimental operating environments. Such environments are those with heavy vibration, airborne contaminants, and unusual temperatures. Commercial or residential power inverters usually fail to function efficiently or fail to work at all.
• Lifespan. There is no doubt that industrial inverters have a longer lifespan than commercial power inverters. This is ensured by the NEBS Level 3 certificate, high load capacity, and high-performance housing. Industrial inverters just need to be installed properly and maintained regularly. If this is done, you can be sure that they can last for decades. Residential or commercial inverters usually last for a shorter period.

If you know that you need an industrial inverter, it is more practical not to choose residential or commercial power inverters so that you can save money initially. You are better off with an industrial inverter because it is far more durable and long lasting. It is fair to say that it is will worth every cent you pay upon your purchase. Get more information from credible and experienced inverter manufacturers so that you can end up with a good product. You can even have customized power inversion or power conversion if you need it. With this, industrial power inverters can truly help you with their long-term advantages in the long run.