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This post will help you to determine the best location for a photovoltaic (PV) system. After you have sized your PV system based upon the calculated the power requirements, you will have to select a location that has maximum sun exposure and limited shading throughout the year. PV arrays can be...
When you receive your energy bill each month, you may not understand exactly how the total amount has been calculated. Every device or appliance in your household contributes to the total sum of the bill. To figure out which appliances and devices are using the most energy, you can estimate the...
Batteries store and produce energy as needed. In PV systems, they capture surplus energy generated by your PV system to allow you to store energy for use later in the day. Like technologies such as fuel cells, a battery converts chemical energy to electrical energy. Rechargeable batteries also...
This post will help you to determine how to size a photovoltaic (PV) system. By calculating the power, current, and voltage output required, the size and the number of photovoltaic panels can be estimated. Also, the voltage and current requirements will determine how the solar panels in...
Those who wish to learn more about fuel cells, and even to build their own, may also want to learn how to test those fuel cells. In this post, we will review some basic terms, and introduce low-cost testing equipment and more sophisticated testing setups. First, however, an understanding of the fuel cell and electrical basics will...
Photovoltaic (PV) panels are comprised of individual cells known as solar cells. Each solar cell generates a small amount of electricity. When you connect many solar cells together, a solar panel is created that creates a substantial amount of electricity. PV systems vary in...
Thermodynamics is the study of energy changing from one form to another. Many predictions can be made using thermodynamic equations, and these are essential for understanding fuel cell and electrolyzer performance because these devices transform chemical energy into...
Hybrid renewable energy power systems are positioned to become the long-term power solution for portable, transportation and stationary system applications. Hybrid power systems are virtually limitless in possible setups and configurations to produce the desired power for a particular system. A hybrid system can consist of...
If you took the electrical output directly from a fuel cell, it would be an unideal power source. The output of a fuel cell is a DC voltage that varies widely and has a limited overload capacity. The electrical output is slow to respond to load changes because it is based on a chemical reaction, and may have...
If you work with fuel cells, then you are definitely working with polarization curves. The polarization curve does not have a lot of specificity; however, it is one of the most common methods of testing a fuel cell. It also allows an easy comparison to other published polarization curves. The polarization curve displays the voltage output of the fuel cell for a given current density loading...