Blog | profitablegreen

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

May 1, 2016
5 min

Top 7 Solar Financing Mistakes & How to Avoid Them

More solar is getting installed. Considering the financing options upfront is very important, and this article will help you avoid common mi

188 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Apr 1, 2016
4 min

Ballast-Free LEDs for High-Bay Fixtures Reduce Energy Use by 50%

The economic advantages of removing T5HO lamps and inserting LED tubes on a “one for one” replacement are significant. It may seem strange

157 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jan 3, 2016
4 min

How to do Thermal Energy Storage

Previously discussed was the rationale for using thermal energy storage to reduce peak electrical demand costs. Here, we will go further in

977 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jan 1, 2016
4 min

New Energy Tax Deductions for 2016-2020

Project developer, Bill Bissmeyer, specializes in energy tax deductions and rebates which can pay for most (if not all) of a project's c

176 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Aug 2, 2015
4 min

How to use COP

The "performance metrics” of HVAC equipment explained: COP, Energy Efficiency Ration (EER), SEER and HSPF. Similar to how “miles per ga

2,747 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jul 3, 2015
4 min

Sample Exam Questions for PCF Certification

Note these are not the actual test questions, but similar in content and format. The questions also align with the agenda is listed on the

978 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jul 2, 2015
7 min

Sample CRM Exam Questions

Below are sample exam questions (with answers at the end) from the Carbon Reduction Manager Certification Exam, which has been taught on man

1,187 views0 comments

-Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Sep 1, 2014
4 min

Energy Savings of Variable Speed Drives

The Magic of Variable Speed Drives By Eric A. Woodroof, Ph.D., CEM, CRM, PCF Buildings Magazine September 2014 DOWNLOAD PDF (it has...

260 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jul 1, 2014
1 min

Sample Project Development Agreement - Download

Download a sample project development agreement.

1,359 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jul 1, 2014
5 min

Motor Fundamentals

Motor Fundamentals By Eric A. Woodroof, Ph.D., CEM, CRM, PCF Buildings Magazine July 2017 DOWNLOAD PDF Motors use more energy than any...

280 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jun 2, 2014
5 min

Power Factor, Ratchets and Your Electric Bill

Whenever I do an energy audit, I ask for at least 2 years of energy bills, so that I can see the historical consumption and charges. Then we

5,023 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Mar 2, 2014
6 min

Energy Project Financing

Why good energy projects are delayed and how to work around the pitfalls of financing, and the largest obstacle to getting your projects app

250 views0 comments

Eric Woodroof

Jul 18, 2013
1 min

OVERVIEW: CONSULTING

How Profitable Green Solutions and Dr. Eric Woodroof help businesses save money and implement green solutions at the same time.

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Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Dec 2, 2012
3 min

The Light You Don't See (How to save 20%)

During a recent CEM training course, I got the opportunity to get an evening tour of Lutron’s lighting showroom in Washington DC. I was imp

113 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Nov 1, 2012
3 min

7 Key Selling Points for Energy Projects

We can do MUCH more to get more green energy projects implemented that save energy, improve economic competitiveness and enable environmenta

180 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Feb 2, 2012
6 min

Drill Baby Drill... for GeoThermal Energy

Did you know that at this time, the USA spends between 30 and 50 Billion every month on foreign oil? I find that number to be HUGE and agre

80 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jan 6, 2012
1 min

Psychrometric and Other Charts - Download

Download the Psychrometric and other charts, tools for HVAC engineers to do heat load or cooling load calculations and find solutions.

1,776 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jan 4, 2012
1 min

Time Value of Money Conversion Tables - Download

Download the Time Value of Money Conversion Tables HERE

2,199 views0 comments

Eric A. Woodroof, Ph.D., CEM, CRM, PCF

Jan 3, 2012
1 min

Power Factor Conversion Tables - Download

Download the Power Factor Conversion Tables HERE. Calculate power factor, apparent power, reactive power and correction capacitor's capa