Feasibility Analysis in Solar Energy Installation
It is very important that the location selection is correct for the solar energy installation. The area, building, etc. to be installed in the GES. There are some important criteria to be considered during the feasibility phase of places such as Let's take a look at these important elements together;
-The solar energy potential of the region where the SPP will be installed is very important. The sun exposure time and radiation values of the area during the day are the most important criteria.
- If the area where the SPP will be installed is a land, the cost of purchasing or renting the land.
- If the GES system will be installed on the land, the distance of the land to the grid connection point.
-The technical criteria of the land are very important. (Slope of the land, soil structure, facade of the land, shading condition and transportation)
-Especially shading analysis is very important in the roof SPP installation. In addition, the condition of the transformer and the main distribution panel are also important criteria.
-Extra equipment required by the electricity distribution company. (Autoproducer cell. A separate article on this subject will be on our page soon)
With these features, the layout of the panels whose location is determined and drawn (in drawing programs such as AutoCAD) is made. There are some important points to be considered for the installations to be made on the roofs; chimney, air conditioner motors, thermal solar collectors, smoke evacuation chimneys, tree shades, other building shades, etc. factors such as these should be taken into account and a layout plan should be created accordingly.
Direct current is first produced after the placement of the solar panels. This generated direct current (DC) is converted into alternating current (AC) via solar inverter (inverter). For solar feasibility analysis, the power of the solar panel used in DC power calculation and how many are used are important. DC power is obtained by multiplying the power by the number of panels placed on your land or roof. The most appropriate DC/AC ratio is determined by different other calculations. After DC power is found, a sufficient number of solar inverters should be used, taking into account the DC/AC ratios. The sum of the inverter powers gives the AC power and the inverted AC power is determined.
Electricity is produced in two ways. They are divided into licensed and unlicensed. Licensed SPP transfers the generated electrical energy to eligible consumers over the electricity grid. Unlicensed SPP, on the other hand, consumes some of the energy produced in the power plant, and the surplus is transferred to the electricity grid.
Energy is sold in two different ways in licensed power plants. First, the electricity produced is sold to eligible consumers through bilateral agreements. The second is the sale of the electricity produced within the scope of YEKDEM (Renewable Energy Resources Support Mechanism). During the licensed SPP feasibility analysis, the value of the electricity produced is calculated over the selling price.
In unlicensed power plants, a certain part of the electricity produced is used by the consumption facility. Excess electricity is transferred to the grid to be evaluated within the scope of YEKDEM (Renewable Energy Resources Support Mechanism) through the closest supplier to the power plant. In calculating the value of the energy produced in unlicensed power plants; The amount of electrical energy used in consumption kWh is multiplied by the unit price of the energy that the consumption facility receives from the grid, excluding VAT, including all other taxes and charges. After the offsetting, the amount of electrical energy supplied to the grid is multiplied by the kWh sales tariff to the electricity grid. In solar feasibility calculations, the system usage fee paid to the electricity distribution company should also be taken into account.