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A Fresh Look at VFDs

Thursday, June 22, 2017

A variable frequency drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the motor. VFDs have been in use since the 1980s, and today, the combination of energy awareness, energy regulations, and new VFD technologies are driving an increasing demand for these energy-saving products.

The concept of a VFD is fairly straightforward. Frequency (hertz) is directly related to a motor’s speed (RPMs). The faster the frequency is, the faster the RPMs go. If an application does not require an electric motor to run at full speed, a VFD can be used to ramp down the frequency and voltage to meet the requirements of the electric motor’s load. As the application’s motor speed requirements change, the VFD can turn the motor speed up or down to meet the speed requirement.


House Bill 264 — A 30 Year Update on Energy Conservation in K–12 Schools

Monday, October 24, 2016

Ohio House Bill 264 was enacted in 1985 to allow school districts in Ohio to make energy efficiency improvements to their buildings and use the cost savings to pay for those improvements. Generally speaking, the cost of the energy conservation improvements must pay for themselves out of the energy savings within 15 years. Read More...

Tax Deductions for Energy Efficiency Upgrades

Tuesday, June 14, 2016

In 2005, President Bush signed the Energy Policy Act (EPACT), which provided for Federal tax incentives for businesses that enact energy efficiency and savings projects in commercial buildings. This law has been renewed several times, the latest in 2015, extending the tax benefits through year-end 2016. In general, commercial building owners and tenants who purchase and install products in their buildings that save energy may qualify for tax deductions up to a maximum of $1.80 per square of the affected space. Read More...

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