15kw solar system

The below table shows average solar panel of per kW costs of some countries.

Therefore, the rough cost of 8 kW solar system in Germany should be —$1113*8=$8904.

Likewise, the rough cost of 8 kW solar system in France should be—$1074*8=$8592.

There are four important factors that influence the cost of solar panels.

• Wholesale equipment costs:As a young industry, factories have been able to automate processes, increase manufacturing and logistics scale and dramatically reduce the cost per watt of a solar installation.
• compensation: In order to encourage households to select solar energy, government implements intriguing policies to attract citizens to select solar energy, such as The Solar Rebates. The introduction of local solar rebate schemes in particular states has had a dramatic effect on the cost of solar
• Competition and Cheap Solar: there are thousands of contractors to install solar. As a result, the margins have been forced to be very slim in the market.

This figure depends on where you live, your cost of electricity, your feed-in tariff, and your daily energy usage. To determine how long it would take to pay off a system, you must calculate the total monetary value of the energy produced by the system on an annual basis, and divide the cost of the system by this figure.

You can do this by figuring out what the cost of power is, how much you will export and use in the home, and what your daily savings are.

Like most solar systems, the average life span of a 15kW system is 25 to 30 years. According to the National Renewable Energy Laboratory, solar panels face an average efficiency drop of 0.8% each year. This performance decline is called the solar degradation rate, and it varies among manufacturers. For instance, some solar industry brand may claim a degradation rate as low as 0.3%, while other substandard solar systems could devalue much faster.

What is the solar degradation rate? Simply put, panels become less efficient when producing electricity over time and their solar system output will also decrease. This process is called degradation, and it can take up to 30 years for a high-quality solar system to suffer its effects.

However, despite several decades of use, panels don’t lose their value. Rather, their energy output decreases slightly below the solar company specifications. Light & Elevated Temperature Degradation (LetiD) is the name given to this phenomenon. Better quality panels will last longer and resist this degradation.

Solar panels are incredibly sturdy and are able to last decades with little maintenance. They are designed to withstand strong winds and hail storms, so having your system demolished due to weather conditions is hardly likely. Still, you can ensure more power over the years via the following methods: regularly maintenance; regular dust and debris clearing out.

• Modular design;
• Standardized production;
• Strong commonality;
• Easy installation, operation and maintenance;
• Perfect BMS protection and control system for over current, over voltage, insulation and the like;
• Utilization of lithium iron phosphate cell with low internal resistance and high rate;
• High consistency of internal resistance, voltage and capacity of single cell;
• A long  life cycle of around 5,000 times; a service life of more than 10 years;
• Fast charging and discharging support;
• Visual LCD display: allows you to set operating parameters, view real-time data and operating status, and accurately diagnose operating faults.
• Communication protocol: CAN2.0 and RS485, which can be used in various scenarios.