One of the most external factors affecting solar photovoltaic performance rather than the 3 factors aforementioned, is how much solar irradiation exists in that country/location. There will be many calculators available on internet free of charge that provide us with accurate sun irradiation data for each place in the world. This calculator estimates the output power from the solar photovoltaic system based on optimal criteria, means best orientation, best pitch angel, no shadow, and standard good quality solar panels.
Do internet solar research, and speak to your friends who already installed the solar system. The goal of such searches is to discover good brands, prices in the market. Usually cheap prices correspond to lower quality, but keep in mind that your solar system should last for 25 years in order to get a good return on investment, so good quality is our first consideration.
Choose the high quality and the high efficiency solar Inverter, as the inverter is an essential and crucial part of the solar system, the motor efficient it is, the better energy conversion we get. We recommend to choose the best brand with long warranty period.
For each individual solar panel brand/manufacturer, there will be specific characteristics that will affect the whole solar photovoltaic system performance. To be more specific, we mean by the word "performance"; the output electrical power we can get from the solar system "the harvest".
Based on real testing procedures made be the solar specialists/experts, there will be approx. 10% difference in solar panel output power based on its own properties, which are represented by 3 major factors/specifications as following:
The sun releases very tiny energy packets called photons. These photons come from the sun to the earth in approx 8-9 minutes. In theory, the number/volume of photons incident on the earth per hour is enough to meet the world's energy needs for one year. Imagine how much energy we get from the sun!
Payback period refers to: In how many years our solar system will return back its fixed and running costs we should pay for. Basically, before proceeding in purchasing/installing any kind of solar system and due to their high initial costs, we need to make economical feasibility study to know how to calculate the payback period and whether this solar system will be profitable project or not.
Of course, using solar photovoltaic system will substantially reduce our electricity billsand may eliminate them totally, but we can also reduce electricity bills by reviewing our power consumption to reduce electricity usage and electrical losse. Let us introduce nine tips and approaches to achieve that:
1. Replace your bulbs whether they are incandescent or halogen to led lights, as this will achieve 75% energy consumption reduction.
2. Switch off appliances which are on standby mode and not actually used like old air conditioner which pulls large power in standby and like television & mobile charger, etc. All should be switched off when we do not use them.
The electricity consumption in homes differs based on home size, number of resides, home wall insulation, heating/cooling system presence/ capacities, number/ type of electrical appliances, and of course the life style. So, large homes with pools, and air conditioning units will exhibit high consumption with high electricity bill more than small homes, and always the home owners are looking forward to reduce the consumption/bills which is critical in large homes. In fact, there will be 2 main opportunities to reduce electricity consumptions and save your money.