Science, Health, and Food Blog

Tesla (maker of electric cars) wants to help Puerto Rico rebuild their power grid. The hurricane destroyed most of the power grid, and in so...

Robert Murray-Smith created his own company, FWG, with 2 partners. He is working on making a better battery. He already has a test format fo...

Part 2 of 2 Power draw from the battery If all 4 amps is being used on the Amazon inverter, how many amp hours are actually being draw...

I've been looking into using solar power and batteries to power things. My first kit is used to charge a battery using a small panel, ab...

Renewable energy consumption as percent of total energy consumption is 76% in some places. Iceland uses 76% of energy from renewables but th...

There are a couple micro-hydro power generators on Ebay. These are not full kits, you will need to hook up a USB charger board to it to limi...

There has been news about printable solar cells going back to 2008-2012, and it's worth looking into. There should have been consumer pr...

From Newsatlas: A new flat-panel LED light could reduce power use tremendously. Scientists at Tohoku University in Japan have made a cheaper...

This is not the same as a super efficient LED circuit where a battery could light an LED for 10 years . This is a whole new LED technology a...

(This is from 2012 but it's still interesting to see if this technology became a product.) With incandescent bulbs, only 10% of the en...

Some people are working on circuits to make a dim LED light run for a year, or even 25 years. The initial attempts are to provide "mark...

Here it is : One solar panel, charge controller with 4000mah lithium battery, 2 LED light bulbs, for $70usd. I have this one and it works gr...

This [voltage booster](http://www.ebay.com/itm/LTC3105-Energy-Harvester-demo-module/332136264440?_trksid=p2047675.c100005.m1851&_trkparm...

Researchers at a Japanese institute (KEK, no that's not a Reddit joke, that's the letters of the institute) have come up with a subs...

At Northwestern University, engineers have made a new type of graphene* electrode: one punched with many microscopic holes. It could store 1...

A Joule Thief is a circuit that can boost voltage. It can be useful to make LED flashlights, or for emergencies, where you only have a singl...

A new study by the University of Twente in Holland shows many meters can give inaccurate readings, in some cases showing up to 582% more en...

Usually 2 separate units are used to generate and store energy. 1. Something to generate the energy, like solar, coal, gas, etc. 2. A batter...

Near VAWT . I wonder if they just sell the turbine? A 3-d printed VAWT that uses old plastic shades for some parts. A box fan wind turb...

Researchers at Tufts University continue to develop their lithium battery that does not explode or catch fire or even heat up when punctured...