{"id":2807,"date":"2025-03-02T11:33:47","date_gmt":"2025-03-02T11:33:47","guid":{"rendered":"https:\/\/www.solarco.lt\/?page_id=2807"},"modified":"2025-03-02T12:22:47","modified_gmt":"2025-03-02T12:22:47","slug":"faqs","status":"publish","type":"page","link":"https:\/\/www.solarco.lt\/en\/faqs\/","title":{"rendered":"FAQs"},"content":{"rendered":"

\"\"Find answers to your questions<\/p>\n\n

Frequently Asked Questions<\/h2>\n\n
What is a solar power plant?<\/summary>

A solar power plant is a device that converts solar radiation\u2014consisting of light, heat, and ultraviolet rays\u2014into electricity, suitable for supplying both homes and industrial enterprises.<\/p>\n\n

The process of electricity generation in solar power plants is entirely eco-friendly and does not pollute the environment. Additionally, it is one of the most efficient types of renewable energy available today.<\/p><\/div>\n\n

Because of these benefits, solar power plants have become a key tool in creating a new, long-term, sustainable model for electricity production that fully meets ecological standards.<\/p>\n\n

Based on their operating system, there are two main types of solar power plants: solar thermal power plants and solar photovoltaic power plants.<\/p><\/div><\/div><\/details>\n\n

How do solar power plants work?<\/summary>

Solar panels generate electricity through a process called the photovoltaic effect. Most residential solar panels are made from semiconductor silicon. When sunlight reaches the silicon in the solar panels, electrons are excited, creating an electric current that is transmitted to a solar inverter and later used to power appliances and devices.<\/p>\n\n

If your solar panels produce more energy than your home needs, the excess solar energy can be sent to the power grid or stored in an energy storage system.<\/p>\n\n

How exactly a solar panel system will work with your home and the electrical grid depends on the type of solar system you have. There are three main types of residential solar systems: grid-tied, hybrid (with storage capability), and off-grid.<\/p><\/div>\n\n

\n\t\t\t
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Grid-Tied<\/div>\n\t\t\t<\/div>
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Hybrid<\/div>\n\t\t\t<\/div>
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Off-Grid<\/div>\n\t\t\t<\/div><\/div>\n\t\t\t<\/div>\n\t\t\t
\n

A grid-tied system is the most commonly used type of solar energy system. It does not have a backup solar battery for energy storage and uses a method called \"net metering\" to maximize savings. Solar panels are installed on your roof or a ground-mounted structure and are connected to each other. The electricity generated flows to an inverter, where direct current (DC) is converted into alternating current (AC). This electricity is then used in your home or sent to the electrical grid.<\/p>\n<\/div>

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In hybrid solar systems, solar panels are connected to both a solar battery and the electrical grid. Solar energy generated by your panels but not used by your home is stored in the battery instead of being sent to the grid, reducing dependency on the electricity supply and providing backup energy when needed. Batteries are still costly, but expenses can be offset by taking advantage of government incentives.<\/p>\n\n

We install hybrid solar power systems with batteries that can monitor market prices, charging when electricity is cheap and selling to the market when prices are high. This allows you to maximize returns on your solar power system.<\/p>\n<\/div>

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Off-grid solar systems are not connected to the electrical grid, so all the required energy must come from solar power. There is no electricity provider to rely on as a backup energy source. The solar system must supply energy to the home not only during the day but also at night, which requires a large number of solar panels and a substantial battery system.<\/p>\n\n

These systems are usually expensive and often impractical for homes that have access to the electrical grid. They are ideal for remote locations or areas where the electrical grid is unavailable or frequently unreliable.<\/p>\n<\/div><\/div>\n\t\t<\/div><\/div><\/div><\/details>\n\n

What is the best angle and direction for a solar power plant?<\/summary>

The ideal roof slope angle and direction for a solar power plant depend on geographic location and building orientation. In Lithuania, it is optimal to install a solar power plant on a roof facing south, with a slope angle of about 35 degrees. This ensures maximum solar light absorption throughout the year and the highest possible electricity generation.<\/p>\n\n

If the roof faces east or west, the optimal slope angle may be slightly lower\u2014around 15\u201325 degrees. While the efficiency of the solar power plant may be slightly reduced, it can still generate sufficient electricity.<\/p>\n\n

For ground-mounted solar plants, the installation should face south, with the structure angled at 35 degrees. On a flat roof, where solar modules are elevated, wind forces become a concern, so modules should be oriented southward at only an 18-degree angle to mitigate wind risk.<\/p><\/div>\n\n

Knowing your roof\u2019s slope angle and orientation allows for better assessment of any additional power reserve that may be required for your solar power system (see the table).<\/p>\n\n

Angle<\/strong><\/th>W<\/strong><\/th>SW<\/strong><\/th>S<\/strong><\/th>SE<\/strong><\/th>E<\/strong><\/th><\/tr><\/thead>
15\u00b0<\/td>86<\/td>93<\/td>95<\/td>91<\/td>84<\/td><\/tr>
20\u00b0<\/td>85<\/td>94<\/td>97<\/td>93<\/td>83<\/td><\/tr>
25\u00b0<\/td>85<\/td>95<\/td>99<\/td>94<\/td>82<\/td><\/tr>
30\u00b0<\/td>84<\/td>96<\/td>99<\/td>94<\/td>81<\/td><\/tr>
35\u00b0<\/td>83<\/td>97<\/td>100<\/td>94<\/td>80<\/td><\/tr><\/tbody><\/table><\/figure><\/div><\/div><\/details>\n\n
What are the best conditions for a solar power plant?<\/summary>

The ideal locations for a solar power plant in Lithuania are in the Klaip\u0117da or Marijampol\u0117 counties. If you live in these areas and your roof has a 35-degree slope facing south, you will have one of the most efficient solar power systems in Lithuania. However, if the roof has a complex structure and is oriented in less sunny directions, the electricity generation\u2014and therefore the payback period\u2014may be extended.<\/p><\/div><\/div><\/details>\n\n

Can hail damage solar panels?<\/summary>

After heavy hail, small cracks or scratches may appear on the protective glass of a solar panel, and depending on the impact strength, the solar cells themselves could be damaged. The good news is that before solar panels reach the market, manufacturers conduct thorough testing to ensure that their products can withstand various extreme weather conditions, including hail and strong winds. Solar panels are designed to last 25 years or longer, and since they are inherently meant for outdoor use, they are built to be durable.<\/p>\n\n

So, while hail can damage solar panels, it is relatively rare<\/strong>Thanks to careful design and testing, damage typically occurs only in the most extreme weather conditions. Additionally, different solar panel manufacturers optimize their products based on various performance factors. This means you have options when choosing brands and panel types. By consulting with our team, our specialists can recommend high-quality solar panels that not only meet your energy goals but are also best suited to your local weather conditions.<\/p><\/div><\/div><\/details>\n\n

Do solar power plants need cleaning?<\/summary>

Dirty solar panels can lose up to 20% of their efficiency.<\/p>\n\n

However, there is no universal answer to how often solar power plants should be cleaned\u2014it depends on factors such as location, weather conditions, the type of solar panels, and more.<\/p>\n\n

Rough glass and frames can contribute to the accumulation of dust. Meanwhile, frameless solar panels feature completely smooth glass and are coated with a special layer that prevents dust buildup. Since frameless panels don\u2019t have frames, there\u2019s less opportunity for dust to cling to them.<\/p>\n\n

If you live near a dusty gravel road, more attention will need to be paid to maintenance. Similarly, areas near large fires may require more frequent cleaning.<\/p>\n\n

To ensure that the system operates as efficiently as possible, the general rule is to inspect (and clean, if necessary) the panels at least twice a year.<\/p><\/div><\/div><\/details>\n\n

Do solar power plants need cleaning in winter?<\/summary>

If you have frameless solar panels, cleaning them is not necessary. When the sun comes out, the panels naturally begin to clean themselves\u2014due to the heating of the panels, snow melts and slides off. Since there is no frame on these panels, there\u2019s no place for the snow to cling, so it easily slides off. However, if the snow falls continuously for several days or even weeks, the solar power plant may not be able to clean itself.<\/p>\n\n

During Lithuanian winters, when solar activity is low, the electricity production of solar power plants can be significantly limited. While occasional snow removal might slightly improve energy generation, its benefits are not always significant. Therefore, if it\u2019s snowing continuously, cleaning is usually not necessary.<\/p><\/div><\/div><\/details><\/div>","protected":false},"excerpt":{"rendered":"

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