Showing posts with label Consumer Reports. Show all posts
Showing posts with label Consumer Reports. Show all posts

Feb 5, 2016

Energy and Power

Energy is measured in Joules. Power is measured in Watts. Energy is how far you can run. Power is how fast you can run.

When it comes to batteries, Elon Musk says, "It’s really rare that there’s a big breakthrough because there are so many constraints. You can easily improve, say, the power, but then it’d make the energy worse."

Current electric cars have batteries that provide less power and less energy. This is why the Nissan Leaf has a range of only 84 miles (one-third that of the Tesla Model S) and takes three times as long to get to 60 miles per hour.

Musk's Tesla Gigafactory, being built outside Reno, Nevada, will be the second-largest building in the world by volume. It opens in 2016 and will be complete during 2020. His plan is to build enough batteries to reduce the price and improve the power and energy of batteries, so electric cars can go faster and farther. (The latest edition of the Model S received a score of 103 from Consumer Reports, which was a problem only in that Consumer Reports ratings are typically scored out of 100. The magazine had to revise its scale in response to the record-breaking result.)

In addition, the plant will produce large batteries that store energy in homes and even larger batteries that do the same for utilities and businesses. One of its goals is to make home and business solar power more practical. Current prices are already half what other battery manufacturers charge. Musk says, "The issue with existing batteries is that they suck. They’re expensive. They’re unreliable. They’re stinky. Ugly. Bad in every way." His new battery plane are on the path to fix those problems.

In addition to CEO of Tesla Motors and Space X, Musk is also the chairman of solar energy provider SolarCity.

Mar 22, 2011

Dirty Dishes

A change in dishwasher detergents that became final in 2010 may cause some changes in your kitchen. The new formulas lack phosphates, chemicals that are bad for the environment, but good for cleaning. Check the package and try something new for a change. Your old cleaner may not have been reformulated to replace the cleaning power of the old ingredients. Does your old cleaner seem as effective as it used to? Do you seem to use more to get those dirty dishes clean?

Consumer Reports, in September 2010, generally scored tablets and packets higher than cheaper powders and gels, but it said new products are still evolving. Rinse aids help, and are often combined with detergents in the newer products. If you spot spots, it's time to change.