- Storage tank (may be a combination of existing heating systems)
- Expansion tank
- Solar station with pump
- Solar fluid
- Mounting hardware and
Solar PV cells are made up of layers of materials that are semi conductive just silicon. The moment light strikes the PV panels, the cells creates electric fields in all layers. The stronger the sun rays are the more electricity is generated. During cloudy days, lesser amount of electricity is produced. The following are advantages you get from Solar PV:
- Homeowners can reduce electric bills. Sunlight is always available and it is free. Once the initial installation is paid for, you can enjoy reduced electricity costs.
- Homeowners can get paid by generating more electricity than they used. In the U.S. and certain countries in Europe, government supports the Feed-In Tariff s. This is when users of renewable energy sources are paid whenever they generate electricity from sources like the wind power or solar panels.
- Renewable energy sources help save the environment. Electricity from sunlight supports green movement. It does not emit carbon dioxide and other harmful pollutants.
As non-renewable sources of energy continue to deplete and as prices continually rise, people are now beginning to utilize alternative sources. One of the cheapest and readily available resources with the potential of energy conversion is the sunlight. Especially in vast areas, the sunlight is highly abundant and free. Fortunately and with the power of science, sunlight can now be easily converted into usable electricity through Solar PV panels. These are structures that perform the absorption, conversion and transfer of the energy from the sun to the form that households and businesses may use.
Across the globe, many countries are beginning to shift to solar energy. In fact, some smaller countries have begun to rely on solar energy alone. This development has been a medium for development in these countries as they no longer rely on crude oil that is usually imported. With its growing popularity and contribution to development, one may begin to wonder how Solar PV electrical panels work. Many would inquire about the science behind this breakthrough and how such structures are able to yield the electricity that now fuels a significant percentage of humanity.
The main component of Solar PV panels is solar cells. The solar or photovoltaic (PV) cell is responsible for the derivation of the electricity. Solar PV electrical panels are composed of groups of PV cells that are connected to put together the energy that they have converted. The collection of electric current from each of the solar cells flow through the inverter and to the appliances or equipment that requires electricity.
Most solar cells are made of the semiconductor silicon. It gathers the energy by absorbing the photons of the sunlight. This process results to heat that “excites” the electrons in the silicon. This “excitement” is the electric current that will be sorted and then distributed to the circuit that is connected to the receiving end. Since the circuit will carry out the collective amount of electricity produced, this amount depends on the number of solar cells. This is the reason why the size of the solar electric PV panels matter. The bigger the panel, the more the solar cells it can contain and the more electricity will be produced.
However, do not think that having bigger solar PV panels would readily mean that the much energy is produced. The efficiency of the panels also differs and this determines how much of the energy is absorbed, converted and transmitted. Currently, there are three kinds of solar cells that are being used. These are the 1st, 2nd and 3rd generation solar cells. Each one has varying efficiency and therefore, they also have varying costs.
It is highly recommended to seek professional advice to find out which type is suitable for your needs. This way, you can be more cost-efficient and at the same time ensure safety in your set-up.
The way by which solar electric PV panels work has been a breakthrough. And until today, researchers
There are specific reasons why the provision of energy is difficult among Small Island Developing States (SIDS). These are: limited internal markets, limited availability of manpower and institutional capacities and limited integration of different sectors like the energy sector and others. With this, the alternative is to resort on other renewable energy sources like solar power for the process of generating energy and despite the insufficient levels of efficiencies.
Solar energy is quite common in SIDS as it is basically use for heating water and drying crops for consumption. Solar energy is also utilized different ways such as through photovoltaic systems to provide electric power in various remote islands and rural areas particularly in dispersed settings. In Kiribati, solar panels are installed atop health centres and radiotelephone sites. In French Polynesian islands and Tuvalu, photovoltaic modules are used to provide lightning needs of households. In Papua New Guinea, a hybrid of wind turbines and solar panels is used to provide independent power supply to a school. Jamaica makes use of photovoltaic systems to provide electricity to at least 45 households.
However, installing photovoltaic systems installations are challenged by the cost of materials. Donors compensate for lack of capital. There are also banks that provide loans and grant for the purpose of purchasing solar heaters. That is, when there are no donors or institutions to acquire loans, there will be no installations and hence there will be no electricity.
Further, the cost of a solar power system will definitely depend on the lifestyle and perceived electricity usage. Likewise, the cost will depend on specific factors. First, you have to determine the number of solar panels or modules you might need. You should also consider the type of photovoltaic panels that you will use. Panels are not created equally since there are panels that are more energy efficient. If you are going to choose these, then you are going to need fewer panels, which would cost less.
Nevertheless, the solar power decision also depends on the number of inverters you might need. Inverters are available in different sizes, which means that the cost of inverters will depend on the size of the solar power system you intend to create. One inverter will do if your household is small to medium in size but you may need two or more inverters if you have big household. The number of strings in your solar panel will determine how many inverters that you will need as well.
Finally, the total cost of the solar power will also depend on which mounting system you will use. You have the prerogative to place the solar power system in either the roof or the ground or other shaded structures. Depending on your decision, the cost of the solar power system will vary.
There are many uses of solar power systems as evident among many of the SIDS. However, the cost of a solar power system depends on the number of solar panels, number of inverters and mounting system type. The goal is to build a solar power system that fits your household requirement.