Why Install A Solar Panel
Solaro
Solar Panel
If you have the possibility, installing photovoltaic panels is an excellent idea from an environmental and economic point of view. The outstanding reliability of the modules makes them resistant to bad weather and the passage of time (tests are conducted between -40 and +80 ° C, at high degrees of humidity and degrading electrical tests).
In Pakistan, one can easily find the best solar panels,solar inverters and solar batteries. There are lot of companies currently working in all over the world, but if you want to find best solar companies in Pakistan, you must visit online consultancy platform.
They are usually sold with an 80% guarantee of initial performance after 25 years. This is because they are a technology used in situations where reliability is a priority, such as powering aerospace satellites, and for safety applications such as the light signals we encounter on our roads. The latest models' efficiency degradation rate is around 0.5% per year.
How to install them
There are two different possible types of solar panel installation: grid-connected or stand-alone.
The plants connected to the grid use widely spread structures and connections made with highly reliable materials and technologies. Among these, for example, the inverter is the tool that allows you to transform the electricity produced by the solar panels into direct current (DC) and make it available for practical use in alternating current (AC).
The inverter is then connected to the house's electrical panel, which in turn is connected to the household equipment and to a double-entry meter that connects the system to the electricity grid to acquire and sell electricity. This type of installation usually takes place on the roofs of houses and condominiums and the facades of buildings and, more generally, BIPV (Building Integrated Photovoltaic).
On the other hand, stand-alone use does not require any connection to the network. Until introducing the first incentives for grid integration, they were the most widespread systems.
Nowadays, they are primarily seen in areas difficult to reach from the electricity grid. They need two additional elements such as a battery to store the energy produced and possibly not used and an auxiliary generator covering the energy needs when there is no sun.
With the decrease in battery prices, it will be easier and easier to meet the mix of these two installations: a system connected to the grid that has a battery to store the excess energy produced will increase the producer-consumer's independence from the electricity grid. National. In this way, more and more individuals will want to take advantage of solar panels to lower their bills and the environmental impact of their energy consumption.
From a practical point of view, the installation of photovoltaic panels is always entrusted to specialized firms. The installation requirements must first be viewed at the table, understanding whether one's energy consumption justifies an investment, however significant, based on the long term. Usually, the expense is justified if the consumption exceeds 2200 kWh per year.
After that, it is necessary to evaluate the actual space available for installation, the roof's orientation, and the presence of shadows and the value of solar radiation in the municipality concerned. This is why the process related to this type of installation usually needs to be discussed with the help of industry experts.
Benefits
The installation of solar panels includes several positive effects, which are usually found in the long term.
From an economic point of view, the actual payback time depends on a series of factors, including mainly the initial cost, the kW installed, and the plant's actual production.
Taking a simple example in which a 3 kW plant is installed in northern Italy, for a cost of between € 4,000 and € 7,000, the invested capital is recovered over 5-7 years, when the average practical life of the panels is 20-25 years old.
It takes even less to get back the money spent (about three years) in the south because the excellent climatic conditions favor production. After three years for the customer, everything is gained or saved; it depends on the philosophies.
Speaking of a system connected to the electricity grid, the possibility of reselling the excess energy produced to the Energy Service Manager (GSE) is an exciting advantage which, however, usually does not satisfy the user who owns the solar system.
The price paid by the GSE for the energy produced by private solar panels essentially depends on the purchase price of the same from the relevant retailer (e.g. Engel) and the installed power / own energy requirement ratio.
If, for example, the system is balanced, i.e. the number of solar panels installed is proportionate to what is consumed inside the home, to a user who pays his own electricity 0.24 € / kWh, the GSE proposes a price sales of approximately € 0.16 / kWh. On the other hand, if the system is over-proportioned, the energy produced is, therefore, by far the actual need; the GSE pays the user less (about 0.09 € / kWh).
Solar panel price in Pakistan is much lower than the other countries in the world.
The environmental impact of electricity generation from solar panels compared to traditional energy sources (coal and natural gas, for example) is undoubted.
Considering various factors, such as the useful life of the plants, the production chain, the actual productivity, etc., a coal-fired power plant in Italy emits, to give an example of a well-known substance, about 900 g of carbon dioxide, while a solar installation less than 40.
Including other harmful emissions related to the pollution of the earth's surface water and the use of resources and land use, it is quick to understand the benefits of the energy transition to clean sources.
Conclusions: current situation in the world and Italy and what lies ahead for the future
Conclusions on solar panels
Solar energy now covers more than 1% of the world's electricity demand. In general, the accumulated global capacity in the world is constantly growing, but in recent years the pace has slowed slightly.
China and India rank with the highest GW installed in 2017 (30 and 18 GW, respectively). In a scenario that necessarily requires a massive investment in renewable sources, solar cannot be done without and its contribution to the world energy mix is destined to grow, also because the price of silicon and the manufacturing of plants, in general, is in continuous decrease.
In Italy, there is a lot of potential. Puglia is the host for energy production from photovoltaic systems, ahead of Emilia Romagna and Lombardy. Although there are more plants in Lombardy, solar irradiance is higher in Emilia Romagna.
The regions of southern Italy have a higher production possibility than in the center-north because the number of hours in which the sun is shining and the intensity with which its rays hit the panels is greater. If the best regions to install photovoltaic panels are Sicily (especially in the south), Calabria, some areas of Sardinia and Puglia, only the latter is in the top five of the regions with the highest installed capacity. Much can still be done.
This applies to both industrial commercial and residential installations. In Italy, the latter is only 15% of the total. With an increase in incentives for installing solar panels, many private individuals would surely take the opportunity to build their system.