Electric Tankless Water Heaters

Note: This post has been expanded and updated for 2009! Tankless water heaters only heat water when it is needed. About 8% to 30% of the energy consumed by a standard water heater goes to keeping the water hot while it’s not being used. New tankless systems heat the water instantly when you turn on the faucet, rather than keeping …

90% Of Israeli Homes Have Solar Water Heaters

2404948152_cbb8188fb9_o

I recently noted that Hawaii has enacted a law that requires all new homes to install solar water heaters. Eventually, Hawaii may have as many water heaters as Israel, where 90% of homes have solar water heaters installed. When viewed from above, the Jerusalem often glitters with the shine of the thousands of solar heaters that adorn rooftops.

It’s Official: Toyota Testing Plug-In Hybrid In Japan, U.S. and Europe

Toyota has developed a plug-in hybrid vehicle for public road tests in Japan and plans the tests for the U.S. and Europe. (Cars that can run on electricity are much more efficient and economical than gasoline powered cars. They can recharged via renewable energy sources like the solar power and wind power. Even if the electricity is produced by burning …

Best Commuter Bikes For 2014

Bike manufacturers have answered the call to the increased population of bike commuters by designing full lines of commuter specific bikes. Though many of these commuter bikes aren’t cheap, if you’re giving up the car in favor of the most efficient form of transportation, you will of course save money. It is recommended that if you only have it in …

World’s Largest Solar Roof To Power High Speed Rail Station in China

Efficiency abounds in China as the world’s largest building integrated photovoltaic project prepares to power the railway station where some of the world’s fastest high speed trains pass through. China Sunergy, a solar cell and module manufacturer based in Nanjing, China, has recently signed a deal with CEEG (Nanjing) Solar Energy Research Institute to supply the 7MW solar modules for …

Top Car-Free Bike Routes In The Midwest

mountainbike

There’s a growing trend happening in the Midwest and across the country. With the support of local and regional governments, long distance bike routes are being converted from abandoned rail corridors in an attempt to connect a nationwide network of trails most commonly referred to as rails-to-trails. These trails are generally flat or follow a gentle grade, perfect for beginning …

Free Wi-Fi Hotspots

Hotspots are places with publically accessible wireless internet access. Depending on where you are in the U.S., finding a free Hotspot can be tricky. Here is a overview of what’s available: Panera Bread Company offers free Wi-Fi in about 500 of its stores nationwide. Here is a complete list of Wi-Fi enabled Paneras, you can also search for a ZIP …

Efficient: Private, Decentralized Networks

network-growth

The Internet is a wonderful invention, and we are now entering a time where the Internet is becoming nearly ubiquitous in our lives and quickly supplanting traditional forms of media. However, today the Internet is often censored and tracked by Internet Services Providers (ISPs) and companies like Google and Facebook, as well as governments around the world. (I’ve outlined some …

Wind Turbines May Offer Green Energy In NYC

At a glance, New York City might not seem like a particularly “green” town, given all its traffic and densely built-up neighborhoods.  But on a per-capita basis, it consistently ranks as one of the most eco-friendly cities, thanks in large part to its unparalleled mass transit system and the small size of most homes and apartments.  And the city may …

Solar-Powered Boat Sails Across The Atlantic

A company called MW-Line in Switzerland has been busy creating solar catamarans for tourism operations, where quietness and clean fuels are major pluses. Their Sun21, a 46 foot catamaran, was the first boat to cross the Atlantic on solar power alone. The Sun21 is actually a commercially available solar Aquabus C60, which holds 60 passengers.