Rated power of a wind turbine may not be quite as meaningless as cut-in wind speed, though its use is limited. It could have some utility to quickly compare, or get a feel for, the size of the wind turbine, but only if those rated power numbers were taken at the same rated wind speed, and if the manufacturer is giving you a realistic number (many inflate rated power). A much better measure of turbine size is, simply, their diameter. As shown above it is by far the best predictor for power output.
$60) dollars a sq ft range with a 50 percent mix, making it way more expensive than any other roofing material or solar panel. It also does not appear to lend itself to roofs that have hips, dormers, multi planes, etc. Who knows, when it finally comes to market cost may come down, but today its in the rich folks only bracket I believe. I don’t see it being a commodity dyi item for installation like this article any time soon.
Hybrid solar wind battery banks can be made up of many small batteries which are connected in series and or parallel to give you the wattage (Volts X Amps) capacity needed. As a rule of thumb, battery banks with lower voltage (large cells) are going to last longer, take less work to maintain but are going to cost more initially. Keep your battery bank the same age, size and brand. Mismatched batteries will cause the smaller ones to have to work harder and the larger ones to coast and sulfate. (That's a bad thing)
It’s important to note that if you have a shared PPA agreement where you pay for power produced, you will most likely pay more for your solar power in the summer. This seems backward right? Let us explain: summer means more sunlight which also means more solar power production. BUT the good news is because you’re relying less on traditional electricity, it should help offset your total usage costs.
Local airport or weather stations can offer local wind data, but these data may be less reliable than actual site data. If airport data (typically recorded at 30 ft or 10 m above ground) or weather station data (typically recorded at 5 to 20 ft above ground) are used, inquire not only about the site's current equipment and location but also if it is historically consistent with the data collection equipment and siting. Equipment at these sites is not primarily intended for wind resource assessment, so it may not be positioned at an appropriate height or in a location free of obstructions. Unfortunately, airport and weather stations are usually far from the site of interest, with considerably different orography, tree cover, and monitoring height, making these data of questionable usefulness. Given the expertise required to effectively establish and correlate wind resource data, the data provided by airport and weather stations may only provide a rough screening assessment.
TIP; Match the number of solar panels and wind turbine average daily output to the battery capacity: After you finish sizing the number of solar panels combined with the average daily output of your wind turbine to off-set your load requirements, you will need to consider whether the panels power and your battery bank's capacity are sized to work together, or are matched, within reason. You will want the hybrid system to have the capacity to ideally fully charge your battery bank on the shortest day of the year or be prepared to lower your power needs during the wintertime. If the hybrid system is too large, you waste money and power because your charge controllers will not send all the current the hybrid system produce because your battery bank will not be capable accepting too much power too quickly. If the hybrid system is too small, it will not be able to fully charge your battery bank.
Each module is rated by its DC output power under standard test conditions (STC), and typically ranges from 100 to 365 Watts (W). The efficiency of a module determines the area of a module given the same rated output – an 8% efficient 230 W module will have twice the area of a 16% efficient 230 W module. There are a few commercially available solar modules that exceed efficiency of 24%