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More about Homebrew Wind Power Foreword by Mick Sagrillo 320 pages, soft cover, 8 x 10 inches, 395 illustrations ISBN 978-0-9819201-0-8 Published by Buckville Publications LLC, Masonville, CO Retail price: $39.95 ' There's nothing better than 'hands-on' experience when you tackle the big project of building your first wind turbine and tower. We (and others) do offer i n-depth, hands-on seminars at various locations around the USA. We also offer seminars at our wind turbine shop in Colorado, and we can travel to your location. For more information. CONTACT Email me at: Or (if you must) send snail mail to: Scoraig Wind Electric, Dundonnell, Ross shire, IV23 2RE, UK Mobile/cellphone number + 7600 my I respond much quicker to e-mail than to letters! I do reply to all reasonable e-mail questions.

Letters/faxes often get no reply. ( SPAM SETTINGS! Please make sure your spam settings allow me to reply to your question!! It is very frustrating to spend maybe 20 minutes writing a helpful reply and then to find that I cannot even contact you because you have such paranoid spam settings.).

Cheap wind datalogger from Logic Energy Ltd. Specialises in providing monitoring and reporting services via the Internet, principally for the renewable energy industry. Our systems allow remote monitoring of energy systems, reporting and control of failures all via a web browser. Our graphical interface is easy to use and understand and can be accessed from any web-enabled device, such as a mobile phone, from anywhere in the world. If you're thinking about installing a small or medium-sized wind generator at your home or business, it makes sense to find out as much as possible about the wind conditions at the proposed generator site, so as to have some idea of how much power you can expect. This is a project to develop and build open source energy monitoring and analysis tools for energy efficiency and distributed renewable microgeneration.

Following the principles of the Free Software Movement the software source code and hardware designs are available at no cost to everyone under the GNU General Public Licence. The project being open source gives the following potential: It makes it possible to do more than just use the technology, you can learn how it works from the physics of AC and DC electricity to electronic circuit design and software programming. You can build it yourself and modify it to your needs.

You can take part and benefit from a collaborative effort to develop and improve it. If it breaks you can learn how to repair it and when it comes to the end of its useful life it is easier to take apart so that different components and materials can be recycled in to new technologies. •Wind turbines do work but only when installed properly in an appropriate location. •There is a potential for delivering carbon savings and energy generation from domestic small-scale wind turbines in the UK. Yawman And Erbe Clipboard here. •The highest potential for successful household small-scale wind installations is in Scotland.

•Wind speeds are difficult to predict and highly variable. The Energy Saving Trust recommends that potential customers first utilise the best available wind speed estimation tools and then, where appropriate, install anemometry to determine the wind speed distribution. Data gathered through the field trial indicates that none of the sites with building mounted turbines had average annual recorded wind speeds of 4m/s or greater, and only a third of free standing pole mounted turbines had average annual recorded wind speeds of 5m/s or greater.

It is therefore likely that many sites in the UK have less of a wind resource than previously predicted. No urban or suburban building mounted sites generated more than 200kWh or £26 per annum, corresponding to load factors of 3 per cent or less. In some cases, installations were found to be net consumers of electricity due to the inverter taking its power (up to 10W) from the mains supply when a turbine was not generating.

Delta / Zeeland windtest in Holland October 08 () The Ampair perspective Dutch small wind turbine trial suffers low wind speeds HAWTs generally score much better than VAWTs in this test but there are exceptions, notably the Swift (shown right) which seems to me to be a bit of a disaster - a shame considering what nice people they are, and near to my home town of Edinburgh. A new into the potential of small-scale wind energy has found that small wind turbines could provide up to 1.5 Terawatt Hours (TWh) per year of electricity (0.4% of total UK electricity consumption) and 0.6 million tonnes of carbon dioxide (MtCO2) emission savings. This is based on 10% of households installing turbines at costs competitive with grid electricity, which is currently around 12p per kWh. The study also indicates that for the UK as a whole, the majority of electricity and carbon savings are available from small turbines in rural areas - four times as much as urban areas irrespective of costs, and considerably more given economic drivers. This is mainly due to wind speeds generally being higher in rural areas.

Turbines in some rural locations could provide cheaper electricity than the grid, but it appears that in many urban situations, roof-mounted turbines may not pay back their embedded carbon emissions. The report published today marks the culmination of 18 months research by the Met Office and Entec, and is partly intended for government policy makers. It makes important recommendations to improve existing policy measures, including that: • A criterion should be used in any new grant schemes to measure likely carbon savings. This is to help ensure grants are awarded to installations which save reasonable amounts of carbon; and • Higher height limits for stand-alone turbines should be allowed under permitted development rights. This is to help maximise the overall carbon savings of small-scale wind energy, given the sensitivity of electricity generation to height. Rooftop nonsense is alive and well in France.

See from Paul Gipe It's hard to know whether to laugh or cry that these guys get public acclaim for wildly oversold nonsense. Rooftop in the city (updated with response from RD Swift turbines, and my email to BWEA) Mostly now when I see these 'Swift' turbines they are under repair for some reason. It looks awful. The new certification body BRE have come out with new guidelines for estimating windspeed on urban sites that you can.

These rules of thumb (see appendix suggest that the windspeed at rooftop level is approximately 50% of what you would expect from using the DTI (NOABL) data set that everyone relies on. That means 1/8 of the energy production. The Carbon Trust have also brought out a new on line that is much better than NOABL for built-up areas. Has engaged in depth with the new market for urban, building mounted wind turbines at a critical time in market development.

By taking the customer perspective and combining technical monitoring with social research into the impact of installations on public perceptions of energy efficiency and wind, the project is providing the most thorough and complete assessment to date of the efficacy of urban wind systems in supporting UK energy and enviro nmental policies. From the Warwick Wind Trials shows that most of the new generation of rooftop turbines also fail to meet their claimed output, often only achieving 30% or less. In many cases the inverter's standby power consumption exceeds any power generated on urban sites. The is now available and it makes essential reading for those who want to know about small scale urban wind realities (as opposed to marketing spin). 'Renew-Reuse-Recycle is an online community all about what we can do to stop or mitigate the effects of climate change. 'Some of our members have recently started logging their KWh output on a monthly basis in a.' Siting of small VAWT turbines in the UK Factors affecting the success of a wind turbine are:reliability, windspeed, swept area, cost and efficiency.

I found a Quiet Revoluiton QR5 turbine at the botanic gardens in Edinburgh and I am checking out these criteria. There is a good rule of thumb that says a wind turbine should be 30 feet above any obstruction within 300 feet. Windspeed is highly critical for energy production since the energy depends on the cube of the windspeed. There is hardly any wind for turbines sited below the 'canopy layer' of the tree tops.

For more details check the Carbon Trust wind siting tool. The company state that 'Please note that the minimum recommended average wind speed for a QR5 is 5m/s.' But they were willing to sell one to go on this site, maybe just for 'demonstration purposes'? Reliability is very important since the kilowatt hours of energy generated will depend on the hours the turbine is available.

The QR5 is out of action so far as I am aware due to problems with the blade attachments. Vertical axis turbines do have intrinsic fatigue problems which along with the problems of starting and stopping, and the problems of putting them on proper towers have made them a poor choice for wind energy. The turbine is a nice size (5m high x 3.1m in diameter) but in relation to its cost it will not produce much energy even on a good 5 m/s site.

The turbine alone costs £25,000. It does not matter how efficient it is it can never produce more than about 12,000 kWh per year at a 5m/s site, and the manufacturers claim 7,500 kWh per year. A HAWT of similar size and a fraction of the cost would do the same. Discussion forums Rip offs Good sites for homebuilt windpower Other people's free plans for wind generators in Spanish Trials and studies of commercial wind turbines wind turbine manufacturers Sources for stuff. I am not paid to place advertisements here. Most of the links are known to be good people. But some are just ones that I found.

Let me know of any other good links you find. Or any bad ones so I can remove them.