5 Basic Tips to Know for Home Solar

Home solar is one invention of the new century, but it has expanded to different parts of the world. Since it becomes so popular, it is possible you may decide to power your house with solar power someday. As for home solar power, there are five basic tips you need to know before you build such a system. Below are the five basic tips for you.

Tip 1: Learn the process of how electricity is generated at home.

To generate electricity with sunlight is not a very complicated process. Generally speaking, you need to install a solar PV system in your house which consists of solar panels, a PV inverter (or microinverters), a two-way meter (optional), batteries (optional), racks, wires and so on. These solar panels function to convert sunlight into direct current, which will the be fed to the PV inverter that converts it into alternating current. Why should it be converted? Because your house’s power system can only consume alternating current.

Tip 2: The system does need a rooftop or a spot on the ground.

Since solar panels are part of the system, and they must be installed somewhere. The common installation area is a rooftop which must be under your name. If possible, the roof had better face south, west or east but never north, for these directions guarantee more sunlight can be absorbed. At the same time a slant roof is better than a flat one for the sake of absorbing more sunlight. This has so much to do with the sunlight angle. Or if you don’t think it is possible to install them on your roof, and your alternative is to install them on a piece of ground that belongs to your house.

Tip 3: Keep a clear idea about the lifespan of the system.

The average lifespan of it is about 25 years, while some business owners say their systems can last for 30 years. Indeed this is also possible if the system is well-maintained by you. Another question is: what is the lifespan of your solar panels? They are really good stuff, for they can last for 30 years or so. The flaw is their efficiency declines as they become old. The last question is: what’s the lifespan of your inverter? The maximum figure is between 10 and 15 years. Therefore, you will have to replace your inverter once during the system’s entire life.

Tip 4: You can keep track of the output of your system.

As solar technology improves, you can use some certain software to monitor your system. By doing so, you can learn how much electricity your system generates each day, month or year. What you do is download some software provided by the solar system installer or supplier on to your PC or mobile phone. The power generation statistics will be automatically transmitted to your devices daily.

Tip 5. The system installer will offer you his warranty.

The warranty usually can be available for 5 to 10 years. Besides, each installer also offers extra maintenance options. This means you can get a longer warranty as long as you pay some money for him. Usually this expense is not that expensive, but this service also differs from country to country. Before buying this service, you should let them clearly tell you how much you do enjoy.

These tips are just very basic ideas about home solar, and can be helpful for some who have no any idea about home solar power. If you need to know more, please consult professionals, who will explain even every detailed step for it to you.

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The Solar Inverters of Omnik New Energy

Omnik is a Suzhou-based company specializing in manufacturing solar inverters which include single phase, three phase, hybrid and micro inverters. Besides, the new energy company also produces monitoring devices, solar software and solar accessories. In Suzhou, China it is also able to install solar PV systems for residential and commercial buildings.

Single Phase Inverters
Omnik’s single phase inverters are highly efficient with their highest conversion efficiency reaching up to 97.8% and their highest MPPT efficiency reaching up to 99.9%. Their AC power ranges are from 1 kW to 5 kW. The outstanding feature of these products is all these inverters are transformerless. In addition, among them is one series designed mainly for the Japanese market.

Three Phase Inverters
These three phase inverters are mainly designed and produced for residential and large-scale commercial solar power plants. Their highest efficiency can reach up to 98.2% and their highest MPPT rate can reach up to 99.9%. Apart from these two features, these solar products are equipped with the IP65 technology which is water- and dust-proof. Also, the built-in Wi-Fi technology is also available.

Hybrid Inverters
These hybrid solar inverters combine the features of single phase and three phase inverters. The amazing feature of them lie in that they can be used in a grid-tied or an off-grid solar PV system with their highest conversion efficiency being 98.3%. Their AC power ranges are from 3 kW to 5 kW. Each device is designed with the IP21 technology and is suitable for any kind of installation at home.

Micro inverters
Omnik’s micro solar inverters are specially made for home solar power systems. They have transformers and their AC power ranges are from 300W to 600W. Their highest efficiency is 96.5%. They are designed with the AC/DC high frequency isolation technology. At most, 15 of them can be connected in a parallel format to convert DC.

Its monitoring devices are used to monitor its inverters, and Wifi-Kit, GPRS-Kit and PMB are its three monitoring products. Its software products include solar design software and design PV mobile apps. By using some of the software, you will be able to view the electricity statistics of your solar power system with your smart phone or iPad. Its accessories include weather station, PV model and battery.

What factors make high efficiency PV inverters?

Omnik solar inverter
Omnik solar inverter

Before we discuss the factors that can make highly efficient PV inverters, let’s learn the definition of what the efficiency is at first. It refers to the rate that a PV inverter converts the direct current generated from sunlight into the alternating current which is used directly by each family. After making the definition clear, we can discuss the factors.

A PV inverter is a machine which produces heat while working. Usually a machine’s working efficiency reduces as its heat grows. Indeed this is the same for a PV inverter. From this perspective, we know if it can keep cool while working, they can work more efficiently. Out of this concern, the inverter with a cooling system inside has been invented and is being used. Omnik’s micro inverters are a typical example of this kind. At the same time, to make an efficient inverter work better, users can install it in the places of a house where sunlight cannot reach, as so to make it cool. In addition, voltage optimization and inverter load are aslo two important elements that influence the efficiency. The inverter load is the amount of power that the inverter is supplying compared to its rated power. The following picture shows how an inverter’s efficiency changes as its output power changes.

inverter-efficiency-curve
inverter-efficiency-curve

Today, the highest solar inverter technology originates from Europe, especially Germany. The most excellent technology it holds is the high frequency isolation technology, which can protect the inverter from damage and make it work more efficiently. Currently the highest solar inverter efficiency can reach up to 98.5%. The most efficient micro inverters (mainly used for residential solar PV systems) have the highest efficiency of 96% or so.

In the world there are numerous solar inverter manufacturers, and some of the big names are really producing high efficiency inverter products, including SMA (98.5%), SolarEdge (98%), Advanced Energy (98%), Kaco (98%) and Siemens (98%). In fact, there are also other highly efficient products including Omnik (98.2%) that product excellent inverter products. To learn more, please check this information and clear your confused mind.

Warning
Some inverters have a high efficiency when they output in highest power, but have low efficiency when they output in lowest power; and some even have an average conversion efficiency when they output from low power to high power. Therefore, when choosing solar inverters, you need to consider whether the solar panels’ output characteristics match the features of the solar inverters or not.

What Can One Micro Inverter Do for the PV system?

Micro INverter
Micro INverter

A mircro inverter is to directly integrate an inverter and a single PV pack, which will equip each PV pack with an inverter module which has alternating and direct functions and MTTP. The device will directly convert the electricity from the PV pack into alternating current, which is used for a family or for transmission.

When one part of the solar panels cannot work well, this part will all be affected. Other PV panels will work in the best condition, which makes the entire system work much better and generate more electricity. In practice, if the string type inverter meets malfunctions, the solar panels over 1000 KW will not work well. But if the mircro inverter is installed, the malfunctions occur at the moment will be reduced a lot.

In each micro inverter, you will find some shiny advantages as shown below.

Firstly, the inverter can improve the amount of electricity for the power source and track the biggest power. By using this function, the PV system’s electricity generation can be improved by 25%.

Secondly, the mircro inverter can help adjust the voltage and current of each array until the whole system reaches the balance, in case of losing balance.

Thirdly, each part of it has the monitoring function, which lowers the maintenance cost of the entire system, and makes operation more stable.

Fourthly, its configuration is flexible. If this pv inverter is installed at home, the number of the solar panel installation should be in accordance with the financial condition of the user.

Fifthly, this inverter doesn’t have high voltage and it is safer and easier to install. With its lower maintenance cost, the user will never have to depend so much on the installer. Therefore, the user will become more independent in generating electricity.

Sixthly, its cost appears lower than those of other types of solar inverters.