REAL ELECTRICITY PRODUCTION OF MICRO AND MINI SOLAR POWER PLANTS

 

Real electricity production of  solar power plants is the best indicator for determining its profitability and potential construction of other solar power plants. In this post, an analysis of the technical and economic profitability of built micro and mini solar power plants is given.

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TECHNICAL AND ECONOMIC ANALYSIS OF SOLAR POWER PLANTS IN THE MUNICIPALITY TESANJ

 

In the area of the Municipality of Tesanj has long been in use four solar power plants are connected to the associated electrical distribution network, which generated electricity sold at subsidized price. (Photovoltaic Solar Energy: From Fundamentals to Applications) Estimated production of electricity per 1 kWp of installed capacity in the area of the Municipality of Tesanj program PVGIS is 1,120 kWh ( fig.1), the optimal angle setting panel is 32 degrees with the orientation of the north-south axis (azimuth 0).   FIGURE 1- Average monthly electricity production per 1 kWp ( Em (kWh)) Technical and economic data underlying solar power plants are shown in Tables 1-4.    No. Name SP North latitude location in SP East longitude location in SP Altitude (m) Inclination panel (degrees) Orientation (East = -90, South = 0) 1. SP SV ENERGIJA 44°39'55" 18°2'8" 305 34 8 2. SP SUBASIC 44°39'8" 17°56'32" 180 35 0 3. SP IVEX 44°40'37" 17°59'49" 158 35 8 4. SP ENERGY TRADE 44°40'30" 17°59'52" 159 35 0 TABLE 1- Data on the location of solar power and the inclination and orientation of solar panels  (A new dimension for solar energy- click here) No. Name SP Power (kWp) Design Number of inverter / maximum efficiency Number x unit power PV panel 1. SP SV ENERGIJA 10 Roof 1/98,1 40x250 Wp 2. SP SUBASIC 10 Roof 1/98,0 45 x 240 Wp 3. SP IVEX 30 Roof 2/98,1 125 x 240 Wp 4. SP ENERGY TRADE 150 Ground 8/97,8 625 x 240 Wp TABLE 2- Technical data of solar power plants     No. Name SP The projected annual production of electric. energy (kWh) Actual production of el. energy in 2014 g. (kWh) The projected electricity production. energy per 1 kWp (kWh) Actual production of el. energy per 1 kWp in 2014 (kWh) The ratio realized / projected electricity production. energy 1. SP SV ENERGIJA 11.700 11.433 1.170 1143 0,977 2. SP SUBASIC 15.548 10.997 1.555 1.100 0,707 3. SP IVEX 31.977 31.319 1.137 1.045 0,919 4. SP ENERGY TRADE 164.840 160.160 1.099 1.068 0,939 TABLE 3 Data on the  real production of electricity from solar power plants  in 2014   No. Naziv SP The value of investments Euro / Wp Turnaround time (years) The value of investments at current prices (Euro / Wp) Turnaround time at current prices (years) 1. SP SV ENERGIJA 2,00 3,8 1,20 4,5 2. SP SUBASIC 2,25 4,2 1,20 4,5 3. SP IVEX 2,25 5 1,10 5,2 4. SP ENERGY TRADE 2,00 4,8 1,00 5,5 TABLE 4 Investment data  based on real electricity production  (A new dimension for solar energy- click here) The previous operation described solar power can be described the following facts: - In all four solar power plants was achieved in the previous period full continuous operation without any failures - Periodic measurements of electrical parameters in any event not recorded deviations or negative impact on the quality of electricity in the corresponding low voltage distribution areas - The data on real electricity production can be seen that in a lot of input calculations can accurately be assessed the production of electricity in the program PVGIS. Actual production of electricity compared to the projected in all cases lower and decreases with increasing the installed capacity of solar power plants. - Maintenance costs of solar power are minimal and were limited to the cleaning of photovoltaic panels, visual inspections and periodic measurements of relevant parameters - Although recorded and occasional strong bad weather (high winds, big city, rain), in any case there was no physical damage to the underlying solar panels. Time returns the underlying investments in the period of construction and of the tariffs that were then in force range from 3.8 to 5 years and increases with an increase in installed capacity. According to current prices, return on the investment in the construction of solar ranges from 4.5 to 5.5 years. CONCLUSION Applicable legal regulations and level of incentive purchase price of electricity is currently in BiH most stimulating construction of micro (up to 23 kW) and mini (up to 150 kW) solar power plants. Due to the limited amount of incentive funds, the planned dynamic quotas limited the maximum annual power connection to the electricity distribution network, so that the process of massive of production of electricity from solar power plants controlled. Legislation alone is not the only basis for investment. You need quality equipment selection,precise planning and analysis of cash flows. (A new dimension for solar energy- click here) Based on the presented indicators it can be concluded that it is a profitable investment, which primarily represents a secure investment items, secure customers and secured a price for a longer period. Since the profitability of the investment in is estimated at 4.5 years and 5.5 years under the currently applicable prices, we conclude that it will achieve significant revenues over the next 7.5 years and 6.5 years, with an unrivaled incentive purchase price, while if the remaining period to the end of the exploitation period (the remaining 13 years, taking into account that the exploitation life of a solar power plant 25 years) earn revenues on the guaranteed reference prices. Thus, the underlying long-term investment represents one reliable and respectable source of funding, but also contribute to energy efficiency and environmental protection.(A Model for Low-Carbon Innovation)