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"Copy and paste" the above graphics logo into websites for *generous* commission sales of the MicroRotator 07 kit, the rotor powering a PMG generator at high speed, viewed in a collage. Use the navigation bar above to see details of the kit in the Special Offers section of the Home Links & Projects page. This little verticals guy is fuel for the windpower imagination of everyone who sees it! Details available.

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Last Update: 06/03/08

An item in the "Things Under Review" section provides for the first time on the Internet (!?) a math derivation of a factor to be applied to verticals wind turbine (aka VAWT) blade swept areas in equilibrating them to horizontals blade swept areas.

Also in this section are drawings of 35 and 40 MW (!) Combo Wind Generators provided in
Wind Energy Quintessential, suggesting the continuation of wind turbine power production unit capacity increases.






See the dozens of new links now provided on the Home Links and Projects page to discussion threads on energy topics involving small wind, a continuing story of development at the grass roots level!

Two rotor blade kits are now available and may be ordered through this website using PayPal for either a 22" x 18" or a newer 22" x 24" rotor verticals MicroRotator assembly! See the Special Offers section of the Home Links and Projects page.


(The Worldwide
Sunrise/Sunset
Times Calculations
and Calendars have
been removed from
here to appear
elsewhere in
IntegEner's energy
engineering.)

For opening .pdf files, a free copy of the Adobe Acrobat reader may be downloaded by clicking on the image below:

See the Tehachapi Wind Turbines, on a special web page now featured herein. With all new electronics and electrical generation systems and completely refurbished structural and rotating components, these four wind turbines lend power to Tehachapi's Services District not far from the center of town. Hundreds of similar turbines dot the hills nearby providing electrical power at contracted rates to the power utilities in California. We thought everyone visiting would like to know about them. Click on the image to the right to see a full set of views....

Latest New Items

Check here for what's new!
Operating wind turbines in the ratings range of 65 kws to 108 kws are being put on the market for sale with pricing on an as-is basis. Many have been sold and quantities are limited. These are well known here as efficient and durable machines readily able to generate energy if located elsewhere (see the four moved to Tehachapi at the page top). The energy generated at full power on the 7 to 9 meter long blades specs out to 4 kws/meter average with about 8 kws/meter max at the blade tips (for Micon 108s, others comparable)! Download here a Meter Reading Log in .pdf format (23 kb) from several sample turbines with, at about half the retail rate, computed revenues of $50/day and about $20,000/year on average per turbine. Download here also a detailed Nordtank 65 Specifications .pdf file (1.1 mb) for one of the turbine models. Prices subject to negotiation per turbine with multiple unit discounting. Use the contact link above for more information.

"In conformance with the latest aerodynamic ideas, puts the basic forces acting on wings and blades - and their wonder - to rest!" This caption on the cover says it all. The IntegEner-W 30 page "Aerodynamic Lift as it applies to Birds, Aircraft, Wind Turbines" booklet is an early contributor to newer theories based on Newtonian concepts and will quickly bring up to date those who have not yet been exposed to them. The booklet is available both in hard copy for $1.95 and now also as an immediately downloadable document in PDF and HTML format, including cover pages and in full color, for $1.45, either method payable via PayPal. Questions and comments may be addressed to IntegEner-W via the Contact information below. For further details and procedures for ordering just click on the images.



!!!! A new MicroRotator "Model 07" with more generator power is now available on the Special Offers Page! IntegEner-W has been hard at work trying new ideas on small wind rotors and these ideas can now be obtained as kits. Both Model 07 and the earlier Model 06 with a new lower price can provide modest remote power sources that have innumerable uses as attractive 8' tall rotors for the yard. Now with the lower price and the upgraded power, it may be a good time to consider making this purchase of this durable all metal kit. !!!! Just click on the left image or the "Special Offers" link in the navigation bar above.


"Dutchy" the Windmill is our little friend who offers a special qualifications section to help potential customers bridge the gaps necessary to learn what wind energy is all about from their standpoint. He talks in a way that makes sense so everyone can understand, with new ideas added on a regular basis. See if you can answer some of his questions and quizzes about air and wind, subjects well known, or are they?

(Lecture Notes #1, #2, #3, #4, #5, and now concluding with #6, the last installment, available 10/07/07)

An .avi format downloadable video is available! This is the same 51 inch diameter blade rotor currently under test as seen in the image and video just below mounted on the wooden tower and powering a much larger generator now than the one previously used. It is just an off-the-shelf one horsepower 90 volt DC motor used as a generator as seen in this image. The rotor consists of 36 inch diameter aluminum blades bent into a high camber "PVC pipe blade shape" out of 1/8" thick plate plus add-on blade extensions bent from thin aluminum sheet as designed and developed by IntegEner-W to give the rotor an extra boost in the more moderate winds near ground level. The load is now much greater, a string of 12 volt auto lights, including several 50 watt halogens, connected in series, about 250 watts, which may be readily seen shining in daylight. Just click on the large image to download the 3.0 MB video of the rotating blades powering the lights.

Another .avi format downloadable video is available. This is the 51 inch diameter blade rotor described above during an earlier test mounted on the wooden tower and powering an AMETEK-type 30 volt DC motor readily available over the Internet as a generator. Normally such a blade rotor diameter would be compatible with a generator of this rating but the "doubled blades" design feature here was found to be responsible for a runaway problem at times that was corrected when the larger generator and greater loads seen in the later video above was installed in place of it. The load here consisted of about 17 small 12 volt lights, including some colored lights mounted on a small vertical shaft above the platform, about 50 to 100 watts total. Just click on the image to download the 1.7 MB video of all the action.

Another .avi format downloadable video is available. This is the H-MicroRotator - the horizontal axis small wind rotor in action. It is provided here in advance of being added to the Special Offers page to describe a kit possibly to be offered for it. Plenty of rotational speed. Plenty of torque. Watch the generator spin and the lights light up. Just click on the image to download it - about 2.3 megabytes.




See the NEW .avi format downloadable video of the V-MicroRotator ("V" for "Vertical" axis) running in the wind on the Special Offers page.

NEW in the Demonstration Projects section of the Home Links and Projects page are images of the generator added to the Horizontals MicroRotator. The demo unit is now producing power and lighting small, bright LED lights. It was easy!

Following next is a list of web sites that hold some information in the way of emerging, newer approaches to energy issues as well as up-to-date information on current technologies that supply the bulk of energy now being provided that may be of some interest to the viewer.

A fact-filled site, provided by a coal energy industry organization, at which one can find state-by-state breakdowns of average electrical energy rates and pie charts of the energy mix in each state is the following:    Center For Energy And Economic Development

Coal gasification has been making great strides during the last few years, now seen as a major advance in many aspects of coal-fired technology, as can be researched at:   Gasification Technologies Council  . For membership information in a coal-industry-supported, non-profit organization that offers further information on coal go to:    American Coal Council  .

Several sites where can be found electrical energy generating equipment, particularly diesels and gas turbines, of ratings suitable for utility-grade application are the following:

Belyea   Cummins   General Electric   Katolight   Wabash   Waukesha

Two important periodicals that cover the latest on the renewables in the electrical energy field can be found at the following locations:

Windpower Monthly News Magazine     New Energy Magazine

An overlooked idea on transportation that would interest EV and pedal-power supporters (recommended for its to-be-desired mundane appeal) is:    BikeTrans

Progress continues to be made with geothermal heat pumps for occupied spaces heating and cooling. The ground has a high thermal capacity and is a deep source of heat flow and, as long as adequate measures are taken to limit wall and roof heat energy loss or gain, can be an efficient method of temperature control. Two associations that provide information on this technology are the International Ground Source Heat Pump Association and the Geothermal Heat Pump Consortium. Sites provided by two domestic and institutional suppliers are:

Econar       New England Ground Source Heat

Compact fluorescent lights are now improved and four times as efficient as the same brightness of incandescents. Much can be said in their favor, including significant impacts on electrical power generation once adopted by homeowners and businesses everywhere. Several sites that describe them (now including dimmable varieties and the new "Mini-Spirals" that are as small or smaller than ordinary bulbs) are:

Lights Of America      General Electric      Sylvania      Philips      Panasonic
Technical Consumer Products
Compact Fluorescent Offer

Wind Theory
Some chapters are provided below, written into this website page, of the basics of a "Newtonian" approach to wind energy aerodynamics as distinguished from the more "Bernoulli, etc." approach typically seen in design literature and studies. It rests on the use of a flow-oriented rewrite of Newton's Law and vector diagrams that consider a wind turbine blade cross section taken at any location along its length fixed in place while the wind is allowed to vary in speed and direction relative to it during its rotation for both the horizontals and the verticals axis configurations.

Chapter   1     Derivation Of The Basic Lift Force Equation
Chapter   2     Drawing The Line
Chapter   3     Thermal Combined Cycle RDF
Chapter   4     Geese And Ducks
Chapter   5     Home Of The Big Wind
Chapter   6     Airfoil Lift Theory Revisited
Chapter   7     Homework Assignment
Chapter   8     The Horizontals - Also Negative Pitch Angles
Chapter   9     The Verticals