Electrician & Plumber • Licensed & Insured • Residential & Commercial • Credit Cards Accepted • Serving the Birmingham, AL area • 24/7 Emergency Service Available

(205) 426-0583

Amazing new technology powers wearable devices with our own sweat.

A team of engineers from the University of California, San Diego has developed remarkable stretchable power cells that take energy from your own sweat and power electronics, like LEDs and even Bluetooth radios! New technology powers devices with sweat
For a field that has been struggling to come up with devices that are powerful enough and stretchable enough, these epidermal biofuel cells are a major breakthrough. The breakthrough was achieved thanks to a combination of extremely clever chemistry, highly advanced materials and electronic interfaces. This combination let them build a highly stretchable, electronic foundation using lithography and screen-printing to manufacture 3D carbon nanotube-based cathode and anode arrays.
The biofuel cells are equipped with an enzyme that oxidizes the lactic acid present in human sweat to generate current. This turns the sweat into a source of power. Because the concentration of lactic acid in a person's sweat gets diluted over time, the team is exploring a way to store the energy produced while the concentration of lactate is high enough and then release it gradually.So future work is needed before this technology can be considered a full success. 

Return to blog

Current Specials

Free Home Electrical Inspection

With any paid electrical repair. A $100 value.
Must use coupon code JELFREEHOME.
Offer does not expire

$200 Off Electrical Panel Upgrade

On Any Electrical Panel Upgrade.
Taxes and dispatch fee additional. Please call for details. Must print this coupon and redeem at time of initial dispatch call.
Offer does not expire

$25 Off Any Electrical Repair

Must mention promo code: 25OFF
Cannot be combined with any other offer. Does not include dispatch fee.
Offer does not expire

Free Second Opinion

on service/breaker upgrades or fuse box repairs.
Must use coupon code JELFREESECONDOPINION.
Offer does not expire

Latest Tips

Hot Water Tank Not Cutting It Anymore?

Monday, June 3, 2019

There's nothing better than a nice, relaxing, hot shower.  But what happens when that hot water doesn't stay hot for very long anymore, and that relaxing shower is now an ice bath? It might be time to chuck your old hot water tank and invest in a new one!

Finish reading Hot Water Tank Not Cutting It Anymore?...

What is GFCI protection and how is it maintained?

Monday, May 6, 2019

Ground Fault Circuit Interrupter (GFCI) devices are required in specific areas of our homes by law.  We must all have GFCI protection in certain parts of our house such as our kitchens, bathrooms, unfinished basements, outside our homes as well as our garages. GFCI devices monitor the electricity between the ungrounded (hot) and grounded (neutral) conductors. If there is an improper imbalance between the two conductors the GFCI will stop the power from exiting the receptacle, so no one gets an electrical shock.

Finish reading What is GFCI protection and how is it maintained?...

About John's Electric

Linn Park Fountain, Birmingham, AL

John's Electric Inc. is a family owned and operated electrical contractor business that proudly provides electrician services in Birmingham, AL and the surrounding areas such as Hoover, Homewood, Chelsea, Vestavia Hills, Pelham, Alabaster, Trussville, and Mountain Brook. John's Electric provides residential and commercial electrical solutions at competitive rates. We have been in this line of work for 30 years, giving us not only experience but expertise as well. You can depend on us. We are a state licensed electrician (#03875) for your protection.

  • Angie's List
  • Better Business Bureau
  • Facebook
  • Google
  • HomeAdvisor
  • Instagram
  • Yellow Pages
  • Yelp

What others say about John's Electric Service

Great company! He called and came out right away. They were on time, did a good job and gave me a good price! Very happy!

Deana C.
HomeAdvisor

Service was above and beyond excellent. Stuck with us and the power company until the true root of the problem was found. Worked around our schedule and budget restraints. Left things clean and was very respectful. Would definitely recommend him and use him again.

wayalockhart
Yellow Pages

Aubrey did an excellent job with moving our electrical main service. He coordinated with Alabama Power and the Hoover inspectors and everyone was there when they should be. He knew that we needed a special disconnect and ordered the right one. We gave him a key and trusted him to be in and out of the house and yard when he needed to. He kept us informed, did a quality job and went over and above to come out to check on things for us after hours one evening and teach us a few things. Reasonable price as well. A true professional and I will recommend him again.

tiffdunlap
Yellow Pages

When you need help from an electrician IMMEDDIATELY, this is the company to call. They came out right away, gave me several options for the repair, and the pricing was fair. I can tell you this, if I had another electrical problem this is the company that I would call.

John Mayti
Yellow Pages