Tag Archives: energy

Electra Therm’s new waste heat converter

Electra Therm  has developed a technology to convert ‘waste heat ‘into electricity. The Green Machine is enable to create clean energy from  from heat thrown off as a buy product of manufacturing of other operations. It is the first commercially viable heat generator. What Electra Therm’s technology has also in common with geothermal technology is that it requires no fossil fuels and creates no emissions.

Making waste heat is the newest source of clean energy. But it is rarely include as a renewable energy source, because waste heat derives from factories and plants that run on fossil fuels. But it meets defintion of both clean energy generation as well as energy conservation.

The Green Machine has an output of 50 kW of electricity generation, placing them in the small medium size segment of this business.  In the lower output there are currently more creations of  converting waste heat to electricity. For example the Green Turbine   1-15 kW is  a  mCHP solution that uses existing waste heat to produce power, (electricity) heat and/or hot water.  It  can be driven not only fossil fuels, by any fuel type : natural gas, propane, waste heat Biomass, fuel cell, solar PV Thermal.




Solar Heart converts ‘low temperature’ heat

800px-Solar_panels_on_a_roofCool Energy of Boulder, Colorado  is working at the completion and operation of the  Solar Heart engine which converts low temperature heat into electrical power. http://www.coolenergyinc.co

The  team has produced the engine near 1 kW  and will now be using a higher temperature working fluid to simulate a solar application.  And  it is expecting  to generate power in the 1,5 kW.

A good performence! Cool Energy is talking about low temperature, but don’t mention what temperature. Are we talking about heat lower than 300 C or higher ?  De “Green Turbine “works  by a low temperature of 150 C and by using Organic Rankine Cycle  it is possible to work with low temperatures of below 100 C. ( www.greenturbine.eu)


WindPipe a gamechanger?

Inventor John R. Tuttle  has developped a new kind of wind energy  converter which might be a good replacer of wind turbine generators. This prototype WindPipe  is quite a bit different from the turbine generators as we know them. It has no rotating parts at all, no long churning blades or propeller and no rotating power generator hidden in a nacelle.

Vertically the  WindPipe  looking more like a crude musical instrument  with a horn-like wind capture head at one end. Because it has no spinning  blades, it  can be integrated into buildings design. It can lie on its side or lie at any angle  or in any other shape.  ‘ The windPipe can be used not only in traditional wind farm tower arrays but inside buildings and even underground with air ducted in from the winds above’  says  inventor John R. Tuttle . ‘ ‘ Windcaptures does not have have to be circularly shaped as with spinning propeller blades, capture  can be rectangular  or any other shape with the air then ducted to the energy converter system for direct energy conversion electricity.’

WindPipes  can be spaced close togheter because  there are no whirling blades.

There is no cut out wind speed. Power output in the WindPipe starts building at about 7 miles per hour of wind speed and climbs from there.  ‘Unless the WindPipe gets destroyed in a bad storm!  Vertical towers are light and easily raised up to 120 feet with a crane. All the electrical components and connections are at the bottom keeping maintenance  costs low. Also the cost of power  from the WindPipe are low. Above 14 mph, the technology is expected to produce energy from 3 to 10 times cheaper than turbines, from $3.30 per MWh to $ 0.3 per MWh, compared to the $10 per MWh of modern turbine wind towers.

It’s sounda bit  incredible but it works. But Tuttle won’t say how it’s work. So pity the inventor who wants to develop the idea into a commercial product. For getting investors interested, you have to disclose at least the principles of your invention.  He has to sign a Non Disclosure Agreement (NDA) but it is not easy to find a truly interested investor  without a tidbit of information to chew on opfront.

Tuttle is master of inventions and patenting. He  is the world leading patentholder (at least 78 patents). He plans to build a 9 meter (30 foot) tall unit that can be expected to produce 900 watts of power in a 22 miles per hour breeze.  The unit could put out as much as 9 kilowatts at a stormy 44 miles  per hour. The prototype should also be prettier in white fiberglass and be more streamlined. The wind capture end will be about 3 meters, almost 10 feet in diameter.

If the WindPipe is really a breakthrough we don’t know yet. Tuttle has  to prove it. Any way there are more  inventions out there waiting to happen.


Energy efficiency can also lead to lower tax bills

Dollar huisjeThe making of energy efficient improvements or installing alternative energy equipment is now made more attractive as U.S. home-owners (and businesses) can be eligible for bigger tax credits. By replacing old doors and windows, installing insulation, re-modeling and building with an eye toward energy efficiency, you don’t only save money over the long run but it may also result in savings in tax. The same goes with venturing into renewable energy sources, like solar energy, micro-turbines and purchasing a hybrid automobile. According to the U.S. Department of Energy, The American Recovery and Reinvestment Act of 2009 extends, expands, and simplifies federal income tax credits for homeowners who make energy efficient home improvements. The law extends consumer tax benefits through 2010; triples the total available tax credit from $500 to $1,500, and increases the tax credit to 30% of the cost of each qualified energy efficiency improvement.


If you were to buy or lease a new hybrid gas-electric or diesel automobile (truck, car or SUV) the tax credit amount could range from $250 to $3,400 depending on the fuel economy and the weight. Some heavy hybrid vehicles, for commercial purposes, are also eligible for tax credits. The tax credit is for vehicles ‘placed in service’ after December 31, 2006 and purchased on or before December 31, 2010. The vehicle tax credit is phased out for each manufacturer once that company has sold 60,000 eligible vehicles. At that point, the tax credit for that company’s vehicles will be gradually reduced over the course of another year. More information, including the list of eligible vehicles, can be found at:

Home energy- efficiency improvements
Consumers who purchase and install specific products in existing homes can receive a tax credit for 30% of the cost, up to $1,500, for improvements placed in service starting January 1st, 2009, through to December 31st, 2010. Think of exterior windows, insulation, exterior doors or roofs, central air conditioning, heat pumps, furnaces, boilers, water heaters and bio gas stoves. The improvements must be expected to last at least five years and must be installed in or on the tax payer’s principal residence in the United States. Manufacturers can certify (in packaging or on the company’s web site) which of their products qualify for the tax credit. Retailers, contractors, and manufacturers should be able to help you determine what levels of insulation and what other products qualify.

Geothermal Heat Pumps, Solar Energy, Wind Energy and Fuel Cells
Consumers who install solar energy systems (including solar water heating and solar electric systems), small wind systems, geothermal heat pumps, and residential fuel cell and micro turbine systems can receive a 30% tax credit for systems placed in service before December 31st, 2016.  The cap on geothermal heat pump and solar heaters through 2016 has been removed so that there is no longer a maximum.

For the eligible systems and further information on renewable tax credits, visit: