Photo courtesy of abrunglinghaus at Flickr.com.
Many of us have a blind spot for extension cords. We tend to treat these power cables as interchangeable parts, but not all extension cords are the same.
Length is important. The longer the extension cord you use, the more energy is lost in transmission. If you only need to add 5 feet, it doesn’t make any sense to use a 100′ cord!
The thickness of the wire is also important. Thin cords lose power faster, and they can also heat up dangerously with heavy power loads. When using extension cords, it’s important to make sure that the wire is thick enough to safely and efficiently conduct electricity. Wire thickness is often referred to as “gauge”.
Gauge numbers are rather tricky. Even though it seems counter-intuitive, thicker wires have a low gauge, and thin wires have a high gauge. Many power cords are available in 18, 16, 14, and 12 gauge sizes. Of these choices, 18 is the thinnest and 12 is the thickest. Thicker wires are generally more expensive, but they can save substantial amounts of electricity. Thick electric wire can also handle higher amperages than thin wires without bursting into flames. That’s good to know if you want to avoid burning your house down or melting your tools.
So, know your cords! Pay attention to cord gauge and length, and they’ll pay you back with a reduced electric bill.
Photo courtesy of ClintJCL at Flickr.com.
Photo courtesy of Mayank Austen Soofi at Flickr.com.
Here at the Practical Environmentalist, we’re green news junkies. We keep an eagle eye out for the latest science, social, and environmental developments and try to sum up the big picture here. This week, a lot of exciting things are going on.
The news is full of stories about practical ways to save money. One easy way is to save energy and cut your air conditioning bill.
Here are 4 websites that help you earn money from recycling everything from old cell phones and digital cameras to glass bottles and old cars. Recycling e-waste is a double win – with commodity prices sky high, the copper and gold in old electronics are worth some serious cash, and keeping heavy metals out of the landfill is key to protecting the environment.
“We generally see about a 100 percent increase in recycling in mid- to affluent neighborhoods,” says [RecycleBank CEO Ron] Gonen. “In lower-income neighborhoods, it can be up to 1,000 percent, because the recycling rates are so low there.
Also, the shipping industry is taking huge steps to reduce their fuel bills. Surcharges are running out of control, and the profit margins of commercial transport companies are under pressure. In addition to driving slower, truckers are saving fuel with an Auxiliary Power Unit. APUs are widely used in airplanes to provide electricity without running the engines, but their high price has kept other industries from adopting APUs. With high oil prices, and new pollution controls that outlaw idling engines in residential neighborhoods, that could change quickly.
Due to climate change, farmers are now using sunblock to protect certain produce. Presumably, sun ripened tomatoes aren’t on that list.
Could you live a month without buying any plastic? A British Blogger is trying to do just that, and its tougher than you might think.
Is the future going to be human powered? Clubs and fitness centers from Portland to London are adding devices that harvest kinetic energy to power the lights, sound systems, and HVAC. There are even plans for a floating gym that will travel back and forth on the Hudson river under human propulsion.
Check out these excellent Texas Tomato Cages which come in a variety of sizes and will “last a lifetime” as they say on their website. They’re made of galvanized wire and fold up for quick storage. Pretty cool that these folks are running a successful small business with this simple product. Good for them! From the looks of it, this tomato cage is extremely well built. An excellent gift for the vegetable gardener. Your friend or relative may even thank you with a reciprocal gift of big fat home grown tomatoes!