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Articles: 61

Energy storage subsidies in 2026: What replaces Mój Prąd?

Archived: 2026-09-15
Blog Post
by FreeVolt

Topic 2026. The new programme name, other deadlines and additional requirements may impede the evaluation of tenders. State checked 15 September 2026: official homepage of Energy Magazines announces application round for the fourth quarter of 2026. It should not be presented as already open.

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“A Guaranteed Grant” for Photovoltaics — How to Recognize a Suspected Offer?

Archived: 2026-08-20
Blog Post
by FreeVolt

Topic 2026. A call about recent locations, a document pretending to be an official letter or a fee for ‘reserving a grant’ should lead to a check of the information. The decision to purchase an installation does not require action under the pressure of an unknown caller.

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Expand the old PV system: add panels, storage or change the way you use it?

Archived: 2026-06-18
Blog Post
by FreeVolt

Topic 2026. If the bills do not correspond to expectations, subsequent panels need not be the first answer. Before expanding, it is worth finding a limitation of the current system: too low production, poor time of consumption or a technical problem.

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Smart energy management: can the house choose the cheapest electricity itself?

Archived: 2026-04-16
Blog Post
by FreeVolt

Topic 2026. The colour chart application does not have to manage energy yet. The difference occurs only when the system makes decisions and controls the equipment according to the established needs of the farm.

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Photovoltaic magazine in 2026 — when does the investment make sense?

Archived: 2026-02-19
Blog Post
by FreeVolt

Topic 2026. A package of panels and batteries can meet different needs: saving, increasing your own consumption or preparing a reserve. A sound evaluation starts with setting the target, not with choosing the largest set.

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Mój Prąd 6.0: the most common errors in conclusions and settlement of investments

Archived: 2025-11-13
Blog Post
by FreeVolt

Retrospective 2025. Even a proper installation does not solve the problem of illegible documentation. The application for support must show what has been done, when and for what amount. Below are areas requiring attention, not a statistical ranking of reasons for refusal.

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Energy magazine a blackout: what will really work at home?

Archive: 2025-09-18
Blog Post
by FreeVolt

Retrospective 2025. The battery in the garage is not a promise of unlimited power during each failure. What works is determined by the prepared backup system, the state of charge and the list of connected receivers.

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Old photovoltaic, new magazine: do you have to replace the inverter?

Archive: 2025-07-17
Blog Post
by FreeVolt

Retrospective 2025. The owners of running installations are increasingly asking for the addition of batteries. The answer does not come down to the age of the inverter. Its capabilities, the architecture of the planned system and the expected warehouse function are important.

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Panels produce the most when electricity is cheap — how can we reduce losses?

Archive: 2025-05-15
Blog Post
by FreeVolt

Retrospective 2025. Large production does not always mean high sales value. The discussion of negative prices in 2025 showed the importance of energy management in due time.

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Energy storage 5, 10 or 15 kWh? Why bigger isn't always better

Archive: 2025-01-23
Blog Post
by FreeVolt

Retrospective 2025. Battery selection often starts with the capacity shown in the set name. This is a necessary parameter, but it is only possible to connect it to the available power, consumption profile and surpluses to assess the usefulness of the device.

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Mój Prąd 6.0: when did the battery storage become a prerequisite for funding?

Archive: 2024-09-19
Blog Post
by FreeVolt

Retrospective 2024. In the sixth edition of the program, the deadline for submitting the installation was important for the required additional equipment. This is a good example of why the slogan "extra charge to panels" is not sufficient to assess a particular offer.

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Dynamic fare: cheap electricity at noon, roads at night — who can gain?

Archive: 2024-08-29
Blog Post
by FreeVolt

Retrospective 2024. The price changing over the day gives new opportunities, but requires more careful planning. The most important question is not “when is the cheapest electricity?” but “can I then transfer a significant part of my consumption?”

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The hourly accounting of photovoltaics: why did the time of production start to matter more?

Archive: 2024-07-18
Blog Post
by FreeVolt

Retrospective 2024. Two installations can give up the same amount of energy and get a different value of surpluses. The annual kilowatt-hour chart itself shall cease to be sufficient for the evaluation of the result when account is taken of the production time.

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Negative electricity prices: does the owner of photovoltaics have to pay extra for production?

Archive: 2024-05-23
Blog Post
by FreeVolt

Retrospective 2024. A heading with negative energy prices may suggest that each panel owner will suddenly receive a production bill. However, such simplification mixes the wholesale market with a specific prosumer agreement.

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Photovoltaics on the balcony: can the apartment in the block produce its own electricity?

Archive: 2024-03-14
Blog Post
by FreeVolt

Retrospective 2024. A small set of panels on the balustrade looks like a straight path to your own energy. However, in a multi-family building, technical issues need to be combined with the principles of using part of the building and the requirements of the operator.

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Does the heat pump use too much electricity? The most common causes of high costs

Archive: 2023-11-16
Blog Post
by FreeVolt

Retrospective 2023. A high bill after the heat exchange does not automatically indicate one guilty part. To find the cause, you need to combine information about the weather, the building, the settings and the actual device download.

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More panels do not always mean greater savings — how to avoid oversize

Archive: 2023-08-24
Blog Post
by FreeVolt

Retrospective 2023. Free space on the roof can be an enticing argument to order a few more modules. Meanwhile, a good installation does not have to cover all available surfaces. It should meet the needs and conditions of the accounts.

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The inverter turns off on a sunny day — why does the installation stop producing?

Archive: 2023-06-15
Blog Post
by FreeVolt

Retrospective 2023. Best weather, and the production chart suddenly breaks. This view does not necessarily mean damage to modules. The first clue is the inverter message and the event moment, not the number of panels on the roof.

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Mój Prąd 5.0: what included support and who was the most helpful?

Archive: 2023-05-11
Blog Post
by FreeVolt

Retrospective 2023. The fifth edition of the program expanded the conversation about photovoltaics with heating and hot water. For the investor, this meant more opportunities, but also the need to check whether several purchased equipment actually creates a coherent system.

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The first full year of net-billing: why surprise with the amount of bills?

Archived: 2023-03-23
Blog Post
by FreeVolt

Retrospective 2023. The installation produced a lot of energy and the invoice is still high. Disappointment often results from a comparison of two different things: production seen in the application and energy accounted for by the seller.

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Heat pump and photovoltaic: a way to lower bills or an expensive trap?

Archived: 2022-10-13
Blog Post
by FreeVolt

Retrospective 2022. The combination of heat pumps and panels looks attractive: own energy is intended to power house heating. The problem begins when the annual balance sheet is presented as if every winter kilowatt hour expenditure was covered by the summer sun.

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Put the power back online or use it at home? New meaning of self-consumers

Archived: 2022-07-21
Blog Post
by FreeVolt

Retrospective 2022. Self-consumption is the use of energy from its own on-site installation. The word is technically, but the question is simple: does the house use electricity when the panels deliver it or only after sunset?

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Mój Prąd 4.0: Photovoltaic with energy storage — what changed the subsidies?

Archive: 2022-05-19
Blog Post
by FreeVolt

Retrospective 2022. The fourth edition of Mój Prąd directed investors' attention to what happens to energy after production. In talks about photovoltaics alongside the power of modules, storage and consumption management have increasingly appeared.

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Net-billing instead of empties: does photovoltaics still pay?

Archive: 2022-04-12
Blog Post
by FreeVolt

Retrospective 2022. The change in billing rules in 2022 prompted the question of whether the sense of investing in panels disappeared along with the empties. The answer requires a distinction between two things: technical energy production and financial settlement with the network.

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You have panels, and you don't have power in the blackout? We explain why

Archive: 2022-02-17
Blog Post
by FreeVolt

Retrospective 2022. The sun is shining, the installation is on the roof, and after the network failure, the sockets do not work. That doesn't have to mean a panel malfunction. In many installations, this is a way of working with network security.

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No more empties? Why Poles rushed to assemble photovoltaics

Archive: 2021-11-18
Blog Post
by FreeVolt

Retrospective 2021. Do you want to sign the contract right away or do you want to compare the offers? In 2021, the question of the installation deadline became particularly important. The announced change of accounts made many conversations about photovoltaics begin with a calendar, and then with the needs of the home.

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Photovoltaics and rising electricity prices — how much independence does your own installation give?

Archive: 2021-09-23
Blog Post
by FreeVolt

Retrospective 2021. Their own panels change the way they buy energy, but do not remove all items from the bill. Therefore, the slogan “energy independence” should be spread out into specific questions: how much electricity do I produce when I consume it and what do I still pay for?

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Mój Prąd 3.0: What changed in the grants to the panels?

Archive: 2021-07-12
Blog Post
by FreeVolt

Retrospective 2021. The grant could speed up the decision on its own power plant, but should not replace the evaluation of the offer. The third edition of Mój Prąd is an important chapter in the history of Polish photovoltaics. Today it is worth returning to him first of all for practical conclusions.

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Roof panels and fire — facts, myths and mounting errors

Archive: 2021-05-20
Blog Post
by FreeVolt

Retrospective 2021. The photo of the burning roof quickly attracts attention, but does not explain the cause of the incident. A sensible conversation about the safety of photovoltaics should be about design, execution and control of installations, not the belief that each panel is a threat or that the threat never exists.

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Cheap photovoltaic or good photovoltaic? How to check the offer before signing the contract

Archive: 2021-03-16
Blog Post
by FreeVolt

Retrospective 2021. Two installations with similar power can have a completely different range of work. Therefore, the comparison of the final amounts themselves often leads to a mistaken conclusion. It is worth to see exactly what we buy and who is responsible for the result.

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Classic inverter or microinverter – what to choose?

2021-01-03
Blog Post
by FreeVolt

The fixed current generated in photocells must not be used to power domestic appliances, therefore it is necessary to convert it to 230 V and 50 Hz nominal voltage. Inverters were created for this purpose, also called inverters. Inverter belongs to one of the most important components of the entire installation, it is an essential element for proper operation [...]

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The settlement of the PV installation- the settlement period and its method.

2021-01-03
Blog Post
by FreeVolt

Any natural person or entrepreneur holding a photovoltaic installation shall be accounted for prosumerically. The prosumer settlement is a so-called empties system, which is based on non-cash billing of energy consumed and produced by a photovoltaic installation, on the basis of a comprehensive contract concluded with a current supplier. The surplus produced by the micro-installation of energy can be taken from the grid and used if necessary. What the energy bill looks like [...]

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A two-way counter-- what's worth knowing about?

2021-01-03
Blog Post
by FreeVolt

Currently, photovoltaics are experiencing a real boom. On the roofs of single-family houses as well as companies, you can notice an increasing number of solar panels. However, not only the panels themselves are important in photovoltaics, but also other devices. One of them is a two-way counter, which is used to calculate the amount of energy generated and the one coming out of the public network. It is an extremely important device, making accurate measurements that [...]

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Dimensions of photovoltaic panels - which are most often chosen and how to select them?

2021-01-03
Blog Post
by FreeVolt

The dimensions of photovoltaic panels depend largely on how much space is available on the roof and where they are to be installed. It is also important that the household needs electricity in its entirety. What are the dimensions of photovoltaic panels available on the market and what influences the choice of their size? Dimensions of photovoltaic panels In previous [...]

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Popular producers of photovoltaic panels on the market

2021-01-02
Blog Post
by FreeVolt

The technology of solar panels production is constantly developing, and consequently, manufacturers are introducing increasingly interesting solutions. When deciding on a photovoltaic installation, it is worth paying attention to the panel brand. They are the main components of the whole system and must be of high quality. There are many companies offering photovoltaic panels on the market. Why photovoltaic panels are so full [...]

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What affects the efficiency of photovoltaic panels?

2021-01-02
Blog Post
by FreeVolt

Manufacturers making up photovoltaic panels are achieving increasingly higher efficiency values of cells, i.e. whole photovoltaic modules. It depends on the efficiency of photovoltaic panels what power can be obtained from one panel. Many factors affect the efficiency of photovoltaics, not just atmospheric conditions. What is the efficiency of photovoltaic panels? The efficiency of photovoltaic panels is the ability of the installation to transform sunlight [...]

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The future of photovoltaics in Poland and the world

2021-01-02
Blog Post
by FreeVolt

The ecological lifestyle is certainly the future of Poland and other countries. It slowly enters our daily lives. Most people segregate garbage, want to eat healthy and not have negative effects on the environment. Therefore, natural energy sources are becoming increasingly popular. Photovoltaic is a very dynamic field of science and technology. Intense development [...]

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Changes in current prices between 2000 and 2020

2020-12-31
Blog Post
by FreeVolt

There is probably no person in Poland who would not be stressed by electricity charges. This is because electricity charges have been considered to be among the highest in many households for years. Many people are looking for innovative solutions that would reduce electricity bills. For one [...]

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Energy storage - what is it and is it worth having?

2020-12-31
Blog Post
by FreeVolt

Electricity storage allows the storage of electricity when production is higher than its consumption. The accumulated surpluses can be exploited during increased demand. Energy storage can be of great importance for the future of the energy market in our country. What is and how does the battery storage work? The energy storage unit is a device designed to collect generated electricity. This kind of [...]

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Installation of photovoltaic panels on the ground- what does it look like when a good solution?

2020-12-30
Blog Post
by FreeVolt

Solar panels are an investment more and more willingly chosen. They are usually mounted on the roof, although in some cases the installation of photovoltaic panels on the ground is better. The installation of solar panels on the ground gives many possibilities to optimize module settings. They can be installed in any way, in order to achieve optimal sunlight, which is the desired amount of [...]

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Grants to photovoltaic panels which may be used by different groups of beneficiaries.

2020-12-30
Blog Post
by FreeVolt

Energy obtained from the sun is becoming increasingly appreciated and used by individuals, businesses and farmers alike. This is why the number of eligible grants is increasing. Photovoltaic installation is a fairly expensive investment, but such grants allow to significantly reduce the cost of installation of solar panels. The funding has different forms depending on the support programme. Maybe [...]

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What are the types of photovoltaic panels?

2020-12-30
Blog Post
by FreeVolt

Photovoltaic today is one of the most widely selected forms of energy production in both households and businesses. No wonder, since one expenditure actually makes it possible to draw electricity from sunlight continuously for several decades. In addition, photovoltaics bring a number of benefits in the short and long term. Worth [...]

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Prosumer – brief introduction

2020-12-30
Blog Post
by FreeVolt

Renewable energy sources are gaining increasing public interest. A large number of Poles want to benefit from green energy, which will allow for significant savings, while being environmentally friendly. Private individuals and companies decide to install photovoltaic panels. Thanks to the photovoltaic installation, you can become a self-sufficient prosumer. Who exactly is prosumer, and who can become prosumer? Who's the prosumer? Prosumer is [...]

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What is included in the photovoltaic set

2020-12-29
Blog Post
by FreeVolt

Photovoltaic panels enable solar radiation to be converted into electricity, which can then be used to power many electrical devices. This is a very ecological way of getting the energy needed for each household. With the photovoltaic set, cheap energy can be obtained, thus significantly reducing electricity bills as well as protecting the environment. To successfully get off such a system [...]

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How is the photovoltaic cell constructed?

2020-12-29
Blog Post
by FreeVolt

Photovoltaic has recently become one of the main themes addressed in many media. It is not surprising, however, because it is a kind of turn towards ecology, or our environment, which we should invariably take care of. However, there are still many ambiguities and questions within the subject. How does photovoltaics work? How long the journey [...]

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Electricity suppliers in Poland – the largest energy companies

2020-12-29
Blog Post
by FreeVolt

The prices of your electricity bills may vary depending on which company you signed the contract with. To a large extent, the choice of a specific company depends on the region where you live, where the supplier has the largest consumer base. However, you do not have to be like everyone else and the electricity supplier you can choose. Because in Poland the law [...]

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Design of photovoltaic installations

2020-12-29
Blog Post
by FreeVolt

At the moment, a lot is heard about photovoltaics. Unfortunately, not many people still know what this is all about. That is why we have decided to bring this topic a little closer to you. Well, photovoltaics are defined as nothing more than panels that allow solar energy to be converted into electricity. Photovoltaic panels in [...]

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How do I benefit from the ‘My electricity’ grant, and why is it very profitable to invest in photovoltaic panels?

2020-12-29
Blog Post
by FreeVolt

The popularity of the installation of photovoltaic panels leaves no doubt – the acquisition and processing of solar energy in order to generate electricity is a large saving of money and the possibility of a real impact on the fight against global warming. This remains, however, an investment that not all interested people can afford. In order to support such persons, grants have emerged which cover part of the costs related to [...]

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Introduction of the G11 tariff

2020-12-08
Blog Post
by FreeVolt

The introduction of the G11 tariff The G11 tariff and photovoltaics – a comprehensive set of information on the most popular way to settle electricity bills Today electricity is an essential driver of many jobs and activities. The current is needed for almost everything and thanks to it we are able to operate on a higher level. Electricity is essential in one word [...]

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Introduction to tariff g12

2020-12-08
Blog Post
by FreeVolt

Introduction to the g12 tariff Each of us is a consumer of electricity, but not everyone realises that there is such a thing as a tariff. It is up to them to calculate the price of our current, which we use every day. The priority here is undoubtedly to receive the lowest possible monthly electricity bill. [...]

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Solar panels – knowledge compendium

2020-12-08
Blog Post
by FreeVolt

Solar panels – a compendium of knowledge Photovoltaic – energy of the future Current times, technology development and innovative solutions make the market full of alternative methods to draw energy. One of these are photovoltaic (solar) panels which, thanks to their properties and proper construction, can acquire the amount of energy that is necessary for existence. Panels [...]

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Solar collectors and solar panels

2020-12-08
Blog Post
by FreeVolt

Solar energy gives you the opportunity to use a free source of energy. It does not have to be paid, and it is completely safe for the environment. It can be used to produce electricity and heat. Investors often do not know what would be a better solution for them, whether to bet on solar collectors or can choose photovoltaic panels. In our country photovoltaic is very [...]

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Photovoltaics – how to select power to cover energy demand

2020-12-08
Blog Post
by FreeVolt

In recent times, photovoltaics have experienced extremely dynamic development. More and more owners of single-family cottages decide to install a photovoltaic installation in the building. However, before such an investment takes place, the optimal power of such investment should be chosen accordingly. This will depend on the amount of energy produced to cover the year-round demand for electricity for home, company or farm. Only [...]

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Photovoltaic farms – their history

2020-12-08
Blog Post
by FreeVolt

Photovoltaic farms are better known by the name of solar power plants. These are famous sites that have a number of photovoltaic panels installations. We are not talking about installations on roofs of houses or next to them in the form of several or more panels, and much larger areas that allow to create much more electricity, for example for the needs of companies or [...]

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What the inverter is for

2020-12-08
Blog Post
by FreeVolt

What's an inverter for? Photovoltaic is enjoying the growing interest of Poles. The vision of the production of its own electricity from renewable sources, with the possibility of obtaining state funding and increasing energy charges, is very tempting. The location of solar panels on the most favorable sunlit roof is not all. The efficiency of the installation is determined by the well selected inverter. [...]

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This affects the price of the photovoltaic installation

2020-12-08
Blog Post
by FreeVolt

Photovoltaic installation allows you to regain energy from the sun, thus saving not only the environment, but also your money from home budget. One of the most important issues that directly affects the decision to purchase it is the price of the entire installation. Many factors influence the final cost. Capacity of photovoltaic installation The size of the entire installation is one of the main [...]

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Price or quality of the photovoltaic installation to choose

2020-12-08
Blog Post
by FreeVolt

Price or quality? Which photovoltaic installation to choose? Photovoltaic installations are gaining popularity. Opponents question the point of such investment, arguing that in Polish climatic conditions solarisation is unable to give as much energy as in California or the Mediterranean region. This is not a fully correct argument, as in overheated panels the efficiency of [...]

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Construction and operation of photovoltaic installations

2020-12-08
Blog Post
by FreeVolt

Photovoltaic is a technology that is used to generate electricity, using the photoelectric effect for its operation. This is an investment opportunity that guarantees success. The solution is becoming increasingly popular in Poland and in the world, and it should not be surprising because solar technology is cost-effective and energy is produced in an ecological way. The article will present how the [...]

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TAXATION

2020-11-26
Blog Post
by FreeVolt

It's tax settlement time! And although there is some confusion as to whether or not the new tax reduction has entered into force, many people are quite satisfied this time of year. Some people get a tax return that gives them the opportunity to pay off their debt, plan a family vacation or just go wild with something extravagant. But for self-employed, independent contractors [...]

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SOLAR 101 — TRUE-UP

2020-11-26
Blog Post
by FreeVolt

You just switched to solar energy. Your monthly electric bill of $500 has been reduced to $300 and you can be happier. Everything is fine, until here – BAM! One year after you switch to solar energy, you get a bill of USD 1,000 from an electric company. What happened? Why do you have to pay more of your electric company? [...]

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SITUATION OF SOLAR INDUSTRY

2020-11-26
Blog Post
by FreeVolt

About this time every year, the President of the United States is announcing a state of state, so it seems that this is a good time to discuss the state of the PV industry. Unlike the typical solar system, the solar panels industry consists of many moving parts, and the only constant in the industry are changes. What was true three [...]

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