PV solution is the key to the success of a power generation system which determines the power supply performance and investment return.
Based on a profound understanding of photovoltaic, energy storage, diesel gen-set and other power sources, Zenergy
Zenergy will choose the best construction program for different project scenarios. Whether it's rooftop or ground installation, or a storage container or indoor deployment, what suits you is the best for you.
Zenergy has an experienced construction team and works closely with many regional installers all over the world. Flexible and reliable installation service is an important guarantee for your investment return.
Reliable operation system with a minimal LCOE must be your expectation, no matter what power supply form you will take.
Zenergy provides you with preventive maintenance and planned maintenance solutions, to ensure the system remain running properly with your local team, effectively avoid the power availability reduction or increased electricity cost which caused by equipment failure.
If higher electricity costs you get, Zenergy could fix the problem that because of financing issue you unable to use clean and low-cost green electricity. Zenergy and its partners offer you with PPA, BOT, BOO, EPC + F and other forms of financing services, there is always one for you.
Providing ECONOMICAL and REILABLE clean energy to you. We are a leading supplier of micro-grid power system and photovoltaic PID treating product. Contact us and get a free proposal today.
photovoltaic system
renewable power system
Advantages and disadvantages of photovoltaic power generation shared by photovoltaic system design company.
Advantages of photovoltaic power generation:
Conventional energy sources are limited, both in the world and in China. China's primary energy reserves are well below the world average, at about 10% of the world's total. Solar energy is an inexhaustible renewable energy source, which has the advantages of sufficient cleanliness, absolute security, relative universality, long life and maintenance free, abundant resources and potential economy, etc., and plays an important role in the long-term energy strategy.
Compared with conventional thermal power generation systems, photovoltaic power generation by renewable power generation facilities has the following advantages:
(1) no risk of depletion;
(2) safe and reliable, no noise, no pollution emissions, absolutely clean (no pollution);
(3) not limited by the distribution of resources, can use the advantage of building roof; For example, areas without electricity, and areas with complex topography;
(4) local power generation and supply without the consumption of fuel and transmission lines;
(5) high energy quality;
(6)Users are emotionally receptive;
(7) build cycle is short, the time that obtains energy is short.
Disadvantages of photovoltaic power generation:
However, renewable power system installation company shares that the production of solar panels is characterized by high pollution and high energy consumption. Under the current conditions, it is not reasonable to produce domestic panels. However, a large number of exports equals to polluting China and benefiting the world. But even China's most inefficient coal-fired power plants can use the coal to produce 130 kilowatt-hours of electricity (a typical solar panel generates more than 250 kilowatt-hours a year) -- enough to make light-emitting diode (LED) bulbs glow for 30 years at 12 hours a day.
(1) the energy distribution density of irradiation is small, that is, it takes up a huge area;
The obtained energy is related to four seasons, day and night, rain or shine and other meteorological conditions.
(3) at present, relative to thermal power generation, power generation opportunity cost is high.
(4) photovoltaic panel manufacturing process is not environmentally friendly.
Providing ECONOMICAL and REILABLE clean energy to you. We are a leading supplier of micro-grid power system and photovoltaic PID treating product. Contact us and get a free proposal today.
micro-grid system
Energy Management Software is the core of the whole micro-grid system different from the general monitoring system, EMS needs to coordinate the mode and time of each power supply in the system. The EMS system not only provides an intuitive and user-friendly interface but also ensures that your system has the best LCOE and power supply reliability Construction.
Providing ECONOMICAL and REILABLE clean energy to you. We are a leading supplier of micro-grid power system and photovoltaic PID treating product. Contact us and get a free proposal today.
PV Module PID Phenomenon
PID（Potential Induced Degradation）, is meaning as the potential-induced attenuation effect, PV modules’ PID performance is generally refers to those photovoltaic modules which have been under negative bias for a long time in high temperature and high humidity environment, and have surface passivation due to leakage current, that cause the filling factor (FF) , short-circuit current (Isc) and open-circuit voltage (Voc) decrease, and the output power of the module is greatly decreased. As early 21st century, oversea PV module manufacturers found that the actual power generated by PV power plants is far from the theoretical power. After investigation and analysis, the PID theory was put forward. Later, the PID phenomenon on causes and detection methods have been improved after analysis and demonstration of the main research institutions in the world.
Reason for PID: As shown in figure 1, PV module is connected to inverter, and the module which closest to the inverter bears the maximum ground voltage, with a positive UIN / 2 and a negative Uin / 2.
Because of the potential voltage difference between module and the Earth, metal border of the module is grounded, there will be a potential difference between the module battery and the border, which will create a leakage current.
The ion mobility accelerates with humidity, temperature and voltage potential. Tests have revealed the relationship of mobility to temperature and humidity: “Planar contact with the panel surface also causes a capacitive coupling to the cells, resulting in a capacitive leakage current of varying strength.”
Main Factors Affecting the PID:
Therefore, before design PV system, to grounded the output positive pole of PV module when inverter and system’s hardware allowed (physical grounding or virtual grounding, and the risk of electric shock maybe be happened when people touch the positive pole or negative pole) .
PV Module PID Phenomenon
PID（Potential Induced Degradation）, is meaning as the potential-induced attenuation effect, PV modules’ PID performance is generally refers to those photovoltaic modules which have been under negative bias for a long time in high temperature and high humidity environment, and have surface passivation due to leakage current, that cause the filling factor (FF) , short-circuit current (Isc) and open-circuit voltage (Voc) decrease, and the output power of the module is greatly decreased. As early 21st century, oversea PV module manufacturers found that the actual power generated by PV power plants is far from the theoretical power. After investigation and analysis, the PID theory was put forward. Later, the PID phenomenon on causes and detection methods have been improved after analysis and demonstration of the main research institutions in the world.
Reason for PID: As shown in figure 1, PV module is connected to inverter, and the module which closest to the inverter bears the maximum ground voltage, with a positive UIN / 2 and a negative Uin / 2.
Because of the potential voltage difference between module and the Earth, metal border of the module is grounded, there will be a potential difference between the module battery and the border, which will create a leakage current.
The ion mobility accelerates with humidity, temperature and voltage potential. Tests have revealed the relationship of mobility to temperature and humidity: “Planar contact with the panel surface also causes a capacitive coupling to the cells, resulting in a capacitive leakage current of varying strength.”
Main Factors Affecting the PID:
Therefore, before design PV system, to grounded the output positive pole of PV module when inverter and system’s hardware allowed (physical grounding or virtual grounding, and the risk of electric shock maybe be happened when people touch the positive pole or negative pole) .