The document discusses enhancing energy efficiency by transitioning from AC to DC power in homes and workplaces. It notes that the average individual has over 5 small AC/DC transformers that lose 3-5% of energy for devices like phones, laptops, TVs, and lights. If appliances ran on DC directly, the document questions why AC power is still used since it requires transformers that waste electricity. Some companies have solved this issue, finding that an all-DC system can lower upfront costs by 5% compared to traditional AC by eliminating backup generators. An article describes how Fort Collins, Colorado's municipal complex successfully uses direct current power. Transitioning to DC at the consumer level could start saving electricity usage.

1. Enhancing Energy Efficiency Rational
How many small AC/DC transformers do you have at home and at your work place?
For instance, you are using AC/DC Transformers for charging and supplying power to mobile phones,
laptops, desktops, servers, Flat TVs, DVD machines, shaving machines, hair dryers, LED lighting systems
and so…
The average individual in developed economies has actually more than 5 small AC/DC transformers for
her/his different electric devices…
Those AC/DC transformers are always hot…and they are losing from 3% to 5% of the energy you are
effectively using…
Then, If all the appliance at home and at your work place actually work with DC power, why do you need
AC power in you electric sock? Why do you need to lose 5% of the electricity you actually use and pay
for it?
These questions have been solved for some companies.
In new construction surprisingly, the up-front cost of the system for the project came in about 5 percent
lower than traditional AC costs. This was largely because the team was able to capture a number of cost

2. savings associated with a DC system including eliminating the need for a backup generator. “Because
the battery gives you a minimum of an hour of full load capacity, you no longer need a diesel generator
backup system,”
Look at this interesting article from city of Fort Collins, Colorado’s municipal services complex.
http://www.energymanagertoday.com/direct-current-powers-building-0114185/
So, Developed Economies could start to save some electricity at the Demand Side…