How to Choose a Solar Watch?
-Saturday, November 19, 2022
As solar watch is considered as one of the most important application for using solar renewable energy, we have to know how to choose the best solar watch. Actually, there are 7 quality parameters determining the best solar watch as following:
How to Clean Solar Panels?
-Saturday, November 5, 2022
Cleaning solar panels is the most important procedure of our solar system maintenance, it’s a periodic action that should be done continuously. There are some tips we have to put in mind when we cleaning our solar panels. We should Not use pressure washer when cleaning solar panels, because such high pressure spryer can totally damage our panels.
If you want to install a 100-300W solar panel, to calculate its power generation, you must first consider the following variables. Power (W) tells how much electricity the solar panel can produce, while efficiency tells how much sunlight the solar panel can convert into electricity. A simple example: If the efficiency of a solar panel is 15%, it means that the solar panel is able to convert 15% of sunlight into electricity.
Solar panels are optoelectronic semiconductor sheets that directly generate electricity from sunlight. They play a huge role in various fields of new energy. They are widely used and are used in photovoltaic products. The quality of solar panel components is directly related to the energy efficiency of the products used. Nowadays, there are many manufacturers of solar panels, and some low-quality products are also mixed into them. It is not easy to choose good-quality solar panels. Here we will tell you how to judge the quality of solar panels.
There's a reason you can make a solar panel awning for your RV. Solar awnings serve two purposes. First, it keeps your RV cool. Second, this allows the solar panels to collect sunlight even at lower angles, which happens in the fall and winter. Awnings are important whether the weather is hot or cold.
The solar panel role in the solar photovoltaic system, is just to convert sun-light to DC electricity, it cannot store energy, so we use batteries to store electrical energy at the time of excess solar light to be used at the times of no solar light. Mainly in most of places, there are 2 types of solar photovoltaic systems to be used. The first is the grid tie solar system, in which extra generated electricity will be sent back to the electrical grid, and then the solar system owner takes credits from the electric grid to be used in his future bill, and saving his money.
On roof solar panel is less expensive and takes up less space than an off roof solar panel, but it may be less efficient, depending on your roof and where it faces. Also, it's harder for us to maintain and troubleshoot the roof panel because of the barrier to entry. The lifespan of solar panel on roof is about 25-30 years. Putting your solar panel in the ground will have a longer lifespan as it will be more readily available and it will be more efficient because the ground is cooler than the roof.
Off-grid inverters are designed to work alone and cannot synchronise with the grid. They connect to the property in place of grid power and cannot work in conjunction with it. Off grid inverters must supply power from DC to AC instantly to power the appliances.
The power inverter is a kind of convenient vehicle power converter that can convert 12V direct current into 220V alternating current which is the same as the mains power for general electrical appliances. The power inverter can use 220V power in the car to charge laptops, mobile phones and other devices, and can also be connected to electrical appliances within a certain power range.
A pure sine wave inverter will transform direct current (DC) into alternating current (AC) which can then be used to deliver high-quality electrical current to all sorts of home appliances. Inverter installation is a sensitive aspect of generating alternative energy sources (solar or electricity). These devices rely on electronics and are somewhat sensitive to external factors such as temperature, air pollution and moisture.
In the early 1970s, due to the problem of energy shortage because of the oil crisis, people realized the instability and limitation of conventional fossil energy supply. So people began to seek clean and renewable energy. As a renewable and pollution-free natural energy, wind energy has attracted people's attention.
The popularity and development of wind turbines are extremely rapid. The effect and function of wind turbines are also huge. If we can master some common fault judgments when using wind turbines, we may reduce unnecessary losses when the wind turbine fails. Next, we will introduce the fault diagnosis of wind power generation in detail.
The maintenance of the solar power system is divided into daily inspection and regular maintenance. Maintenance personnel must have professional knowledge, a high sense of responsibility and a serious attitude. The overall operation of the photovoltaic power system should be checked every day, and the display data of the equipment and measuring instruments should be carefully observed. Patrol inspections should be carried out regularly, and inspection records should be kept.
A solar inverter is a power conversion device that converts direct current from a battery to alternating current. So, how to choose a solar inverter for home PV system?
The situation of the home PV system is complicated. If the components are short-circuited and grounded and the after-sales maintenance cannot be carried out immediately, it is likely to cause a fire or a safety accident. At this time, turn off the DC switch to prevent further escalation of the fault.
The most common use of a solar charge controller is to provide load power for solar inverters and to charge energy storage devices in solar power systems. Before buying a solar charge controller, we need to have a general understanding of this product, so as to choose a great solar charge controller with the most favorable price.
The solar inverter converts DC power into AC power, and the core of the inverter device is the inverter switch circuit. The circuit completes the inverter function by turning on and off the power electronic switch. The on-off of power electronic switching devices requires certain driving pulses, and these pulses may be adjusted by changing a voltage signal to generate and adjust the pulse circuit.
A pure sine wave inverter can convert direct current to alternating current. Unlike square wave inverters and modified sine wave inverters, pure sine wave inverters produce waveforms similar to those we get from commercial grid systems and can drive a variety of electronic devices including inductive loads. So, how to choose a pure sine wave inverter?
The input port and output port of the solar inverter are designed with an EIM filter. The purpose is to control EMI transmission interference and only allow the use of ideal low-pass current at DC and power frequency. In addition, it is a bidirectional filter, which can not only To avoid noise interference from the inverter to the outside world, and to prevent the introduction of external interference into the system, the filter includes X and Y capacitors and common mode inductors. The common mode inductance is on the same magnetic ring, which is composed of two windings with opposite directions and the same number of turns, so that the magnetic field generated when the flow passes through the windings is superimposed, and presents a large inductive reactance to the interference current. Mode interference, the common mode capacitor will introduce the common mode current to the ground without passing through the power grid.
Application area: This mode is used in areas with no or less electricity. Mains electricity is expensive and frequent power outages. It is important to note that the inverter will switch to utility power when it needs to use the battery to a lower value. The advantage of this mode is that the solar energy can be fully utilized. The disadvantage is that the user's electricity consumption cannot be fully guaranteed. When the battery voltage is low and the mains is abnormal, no electricity can be used. If the user's demand for electricity is not particularly high, this mode can be selected.
Wind turbine is an important equipment in the process of energy conversion. Shaft is a very important part of wind turbine. And the shaft wear of wind turbine is a common problem of this equipment. Once this problem occurs, the user needs to face a series of problems in disassembly, return to the factory or repair welding.