SOLEX

If you are designing a solar electricity system and don't have access to the grid, you are going to have to deal with batteries. When you start looking at solar batteries you are going to encounter a little math. Fortunately,  SolarTown is here to guide you through the calculations! The general goal when designing an off-grid battery bank is to get a system that is big enough to supply all your needs for a few cloudy days, but is also small enough to be charged by your panels. Step 1: Calculating Your Amp-hour Needs 1.  Inverter size To determine the inverter size we must find the peak load or maximum wattage of your home. This is found by adding up the wattage of the appliances and devices that could be run at the same time. Include everything from microwaves and lights to computers and clocks. The sum will tell you which inverter size you need. Example: A room has two 60 watt light bulb and a 300 watt desktop computer. The inverter size is 60 x 2 + 300 = 420 watts 2.  Dai

Grid-Tied Solar Systems Grid connected solar systems, as the name indicates, are connected to the national electric grid. The reasons are simple. Unlike PV-Direct systems, when power from the PV panels is low or gone, the system keeps on working by utilizing power from the main grid. In this system solar PV panels produce DC current feeding a solar power managing unit (also known as charge controller), which through its internal inverter converts it to usable 230V 50Hz AC. When the panels provide enough energy for all power users to be adequately fed (measured in kW per hour) the solar inverter uses no power from the grid. If the power is lacking, the inverter may compensate using power from the grid and at night or very cloudy days it may completely switch from solar panels to main grid power use. Solar charge controllers do everything automatically and the advanced ones have options for users to monitor and program their operation by a simple touch screen, safe from any ha

Off-Grid Solar Systems are not connected to the national power grid and are fully self-sufficient and energy independent systems that cover 100% of all power users needs and with comfortable peak power usage headroom. Such a system has much larger and more efficient solar panels, deep cycle batteries and solar inverters than any other solar power system. They have intelligent digital monitoring systems to maintain smart power charging, discharging and idle state, protecting solar panels, battery bank and most importantly provide safety for the household or commercial facility. Most common scenario of using off-grid solar systems used to be in remote areas where there is no access to or unreliable power from the grid. Boats, farms, agricultural pumps, traffic lights etc. all pioneered the use of off-grid solar power. Meanwhile the costs for a fully independent solar off-grid system have now come down significantly and reached very close to the standard grid-tied systems. Now,

Photovoltaic (PV) solar panels contain solar photo cells that convert sun’s energy to Direct Current (DC) electricity. Decades ago this technology for high energy production was something we could only see on TV and magazine photos used by satellites and space stations. Only PV cell that came in common use was the inch long solar cell in the humble pocket calculator. Well now everyone can have a high energy production photo voltaic solar system on their roof! A PV-Direct system is a very simple solution which has no batteries to store excess energy and is not connected to the main power grid. The solar panels produce DC current feeding it to a simple solar inverter or Charge Controller, just like the electricity coming out of the main grid power socket. With this system you use what the sun currently gives and during cloudy days and at night there is no power available. Although these are simple to build and cheap to maintain, the modern household, agricultural or indus

Solar power  is  arguably the cleanest, most reliable form of  renewable energy  available , and it can be used in several forms to help power your home or business.  Solar-powered photovoltaic (PV) panels convert the sun's rays into electricity by exciting electrons in silicon cells using the photons of light from the sun. This electricity can then be used to supply  renewable energy  to your home or business. In most  solar systems ,  solar panel s   are placed on the roof. An ideal site will have no shade on the panels, especially during the prime sunlight hours of  9 a.m. to 3 p.m .; a south-facing installation will usually provide the optimum potential for your system, but other orientations may provide sufficient production. Trees or other factors that cause shading during the day will cause significant decreases to power production. The importance of shading and efficiency cannot be overstated. In a  solar panel , if even just one of its 36 cells is shaded,  power prod