Electricity JPS News

Energy News – JPS ripping us off again?

JPS ripping us off again?
April 17, 2013
Roger Chang

In the recent JPS Annual Tariff Adjustment Page 19 Technical Losses states:

“The T&D system configuration and voltage levels are critical to determining the actual
level of technical losses. Further reduction in technical losses will typically be as a
result of capital intensive programmes such as building more sub-stations or
“”increasing”” the voltage level at which we transmit and distribute electricity.”

Increasing the voltage WILL increase your electricity consumption and in effect your JPS
bill!

Most other countries practice something called “Conservation Voltage Reduction (CVR)” in
an attempt to save energy…. decrease voltage. (thanks Stanley)

The JPS nominal voltage should be 110vac or 220vac for rate 10 customers (residential)

I typically measure between 115vac to 125vac and many days close to 128vac, or 4.5% to
16.3% over nominal voltage.

Ever wonder why your motors and electrical equipment run hotter or burn up quicker?
Overvoltage?

Studies have shown 1% voltage change can yield a 0.6% change in consumption, or 2.7% to
9.8% increase in your JPS bill!

Is this there the 10% technical loss reduction will come from?
Technical losses is said to be about $1,500 million annually

Building a sub-station will cost money.
There is no cost to increase the voltage, but is an easy “hidden” way to extract more

money from every customer.

Where is the OUR?
Why is the OUR not regulating this?
Minister Paulwell?

more to come…

THE JAMAICA PUBLIC SERVICE CO. LTD. ANNUAL TARIFF ADJUSTMENT SUBMISSION FOR 2013
http://www.our.org.jm/images/stories/content/Electricity/Tariff/JPS%202013%20Annual%
20Tariff%20Submission.pdf

http://www.myjpsco.com/_pdfs/Interconnection_Technical_Guideline.pdf

http://www.jsea.org.jm/docs/DG%20Interconnection%20Guidelines%20-%20JPS%
20Co_July09_Draft%20v3.0_final.pdf