Wind Power

  • Shopping For A Wind System - Wind Turbine manufacturers or dealers should be asked the following questions about the wind turbines they are selling. 1. Do you have yearly recorded data from installed turbines showing the kWh produced and the average annual wind speed for that area? 2. Is the monitoring of any of your wind turbines accessible [...]
  • Wind Turbine Coefficient Of Performance Only 11.9% - The Jacobs Wind Energy Systems 31-20 Wind Turbine that Wright-Hennepin Electric put up has a year to date output of 5981kWh. This works out to 18.4kWh per day this year or 766.66Wh per hour. If you calculate the power using a cP of 25% and the Rockford, MN average wind speed [...]
  • Real World Numbers For Wind Turbine Output - Here is a real world example. It is quite bit different than book numbers. Wright-Hennepin Electric put up a Jacobs Wind Energy Systems 31-20 wind turbine which is on a 120′ tower and has 31′ diameter blades. This HAWT has produced 5981kWh year to date as of today which works out to [...]
  • Reduce Your Energy Consumption - How to Reduce Your Energy Consumption. In a 2001 study of typical US homes it was found that AC and the Fridge takes up 30%, space and water heating took up another 30%, and lighting was 9%. If a person drops AC, uses a solar hot water system for water and [...]
  • Online Wind Turbines - The following is a list of Online Wind Turbines. I plan to add more as I find them. Western University Michigan runs a Renewable Energy Research lab where they have an online Skystream 3.7 wind turbine. (See Skystream 3.7 specs.) The Skystream 3.7 wind turbine is rated for a maximum [...]
  • Wind Speeds At 30 And 50 Meters - The following shows the difference in wind speed at 30 and 50 meters in Minnesota. Because in the Harvestable Wind Power equation Wind Velocity is cubed a 2 meter per sec (m/s) increase will triple your kWh output. For example 4.47m/s (10mph) to 6.47m/s (14.5mph) will make the following difference. (6.47^3) [...]
  • Diesel Generator Replacement - Dan from Otherpower is at it again. You can use this for a Diesel Generator Replacement. Dan got his hands on a 1903 C&BC 6 horsepower steam engine and build a 12 coil 3 phase alternator (40 turns of 4 strand #15 per coil). Using lodgepole pine it took him 40 minutes [...]
  • Wind Power Books - So the plan is to read these 3 Wind Power Books and do a review on each of them. That should give me a pretty good foundational understanding of how to harness wind power on the head knowledge level. On a practical level I will know nothing. I do plan to [...]
  • Wind Turbines Can Be Dangerous - Wind turbines are very dangerous. They don’t have to be as big as the one in the below videos to be dangerous. Keep far away for wind turbines that are not braked and have have a blade tied down and certianly from any that are spinning. Here is video of the [...]
  • Wind Turbine Power Ratings Are Useless - The power ratings most manufactures give for their wind turbines are almost useless. They use wind speeds that are much to fast! Speeds that are much higher than the annual average here in Canada or the US. For example the average annual wind speed in Canada in most places is between [...]
  • Wind Turbine Power Equation - The Wind Turbine Power Equation is one of the most important equations a beginning wind enthusiast should memorize. HWP = 0.5 x 1.23 x SA x WV3 x 0.25 (HWP) Harvestable Wind Power (w/hr) = 0.5 x AD (air density kg/cu m) x SA (sweep area m^2) x WV^3 (wind velocity [...]
  • New Wind Power Technology - There is a lot of new technology coming out into the market. The following are some of the new and exciting developments for wind power technology. I will be adding to the following list as I run across new wind power developments. New Wind Power Technology: – Optiwind Distributed Wind Turbine. – FloDesign Jet [...]
  • Top Wind Power Blogs - I will be compiling a list of the top wind power blogs here. If you know of some top wind power blogs add them to the comments. Cnet News Greentech blog.
  • Calculate Annual Windspeed Anywhere In Canada - Thinking of using wind power. You will need to know the mean wind speed in your area so you can calculate the size of type wind power unit that will best match your area and kW needs. To find the Mean Wind Speed anywhere in Canada go to the [...]