Photovoltaics is becoming more and more popular. Owners of both houses and enterprises decide to install it mainly because of the constantly rising electricity prices, but not only - this is also influenced by the ecological consciousness of society, which is growing every year. However, before making a decision about investing, it is necessary to choose the right power of a photovoltaic installation. How to do it? We offer in the article!Annual energy consumption in the household - how much is it?
Buying a photovoltaic plant is a way to get electricity from the sun. The environmental aspect, however, is not the only advantage of the investment - it allows you to become independent from external sources of electricity, and therefore from high commissions. However, its efficiency and effectiveness is determined by the correct selection of power: too much is an unnecessary financial burden, and too little is often not enough to power the entire building.The first step to choosing the right power of a photovoltaic installation is to analyze the annual electricity consumption.When calculating the annual energy consumption of a household, take into account your electricity bills and sum up the values for the last 12 months. It is also important to take into account planned changes in its demand, which may include, for example, the purchase of new, energy-intensive equipment or the replacement of the heating system.How to calculate the power of a photovoltaic installation correctly?
For every 1000 kWh of energy consumed annually, 1.2 kW of power is accounted for (in the case of power plants with a capacity of more than 10 kW - 1.4 kW). The resulting value should then be divided by the estimated production of photovoltaic energy. For example, if the annual electricity consumption is 4000 kWh, and the estimated production of photovoltaic energy is 1000 kWh per 1 kW, the power should be 4.8 kW (4000 kWh * 1.2 kW / 1000 kWh).It is worth remembering that the above values are only approximate. In addition, the amount of energy generated by the installation is also affected, for example. the position of the panels, the angle and structure of the roof, as well as shading. At the stage of planning the construction of a house, when it is not possible to calculate the energy demand based on bills, it is necessary to take into account the number of household members, the chosen method of heating or the number and types of electrical appliances. Choosing the right power for a photovoltaic installation is not always easy. The best way to avoid unnecessary complications is to seek professional advice from people who know firsthand about the topic of solar energy. Our team found a site that contains the best online casinos from around the world and many no deposit bonuses for registration.