Solar electricity it is free to grab it:-
Solar PV Modules are made from a set of photovoltaic cells connected series and parallel. Under the sun, a photovoltaic cell acts as a photosensitive diode and converts light (not heat) into electricity. That it means how long the intensity of light (called irradiation) remains in a specific range we will generate a direct current. The current flows into a single direction between the front of the cell exposed to the light to the back of the cell where the electrical connections of that cell are made. The light acts as a natural type of switch setting the current on or off. The heat it is acting as an efficiency deterrent - to much heat and the amount of the electrical current generated start to be limited and to decline in value. The way we connect the photovoltaic cells in series and parallel will determine the total amount of current and respective the output voltage of that panel. They are correlated to panel efficiency, that factor will tell us how much from the total panel electric capacity output will be in used.
We need more as a single panel to start generate a significant amount of electrical energy. As a rule of thumb we look for daily average electricity usage and the average number of sunny hours per day to find the system size (in watts) needed to offset the average dwelling consumption. First we will connect two or more solar panels in a string. One or more strings are connected as an array of solar panels. In case of a large number of solar panels the output it is way more manageable if we split the array into strings of solar panels. The electrical output coming from the solar array it is directed through cables to the array combiner box containing connections for each individual string. From the combiner box the energy flows through home runs to main DC disconnect box and to the most important electrical component of our distribution chain which is a DC to AC Inverter. Actually in most of the installed DC to AC inverters the inverter acts as a galvanic isolator between the DC section and the AC section of that PV plant . In case we decide to monetize on a solar installation and to improve ROI (Return on Investment) we (will) sell the energy generated to the utility company. To keep track of the energy we sell back to the utility company (respective we put back on grid) we use utility-grade, digital smart kilowatt-hour meters mounted before grid connection.
When it comes to residential or commercial installations most of the solar panels are mounted on top of the roof tops. Using Roof - Top systems is the most convenient to integrate residential or commercial PV plants. They do offer additional security features based on their elevated position which make them out of easy reach. Rooftop systems do not need additional land for the PV plant and in this way the start up costs are kept considerable low.
Where roofs are unavailable, Ground-mounted solar panels systems are a viable alternative. Modules are mounted on racks and anchored to the ground. As a start up investment it is more expensive and securing the perimeter for the installation adds to the total cost. Real estate comes as a substantial expense to the total investment costs.
Shelters Canopies are utility type of PV pants. They do energized roofs acting as a power source for all the utilities they host under that structure. Are most seen as Solar Car Ports and they tend to become a common presence. Their main role is to provide EV's and Hybrid cars with charging power.
Utility - Scale Systems are ground mounted or are using available space on industrial buildings rooftops. Their output is in MW range. They are complex in maintenance and most of the time is necessary to be equipped with real time monitoring. Cleaning becomes a real issue and adds to the maintenance costs.
Trackers are a solution brought in mainly to increase the output power by moving the solar panels to follow the sun’s path and get more pick ours per day. At the sunset they will be parked ready to be used at sunrise.
Solar panels generally last over 20 years, and they require little to no maintenance. Most of the solar panels have 20 years linear warranty. Very common for solar panel warranty is to state that the panels will produce at least 80% of their rated power after 20 years in service.
Solar panels are mainly classified as monocrystalline, polycrystalline or amorphous. Polycrystalline or amorphous are one and the same. The main constrain in residential solar panel installation is the roof space. If space is not an issue, then an polycrystalline (amorphous) panel is a great option. Polycrystalline (amorphous) solar panels perform better than crystalline solar panels in very hot temperatures and are more tolerant to the partial shading.
The information posted herein has been compiled by Clean Energy Brands from OEM product data and reputable publications. All rights reserved!