California Net Metering Petition Gains Traction

A petition drive to leave California net metering policies untouched has garnered more than 130,000 signatures. The California Public Utilities Commission (CPUC) reports it has received this signature-heavy petition, which is calling it to not enact controversial proposals to reform net metering in the state. The petition was organized by pro-solar coalition Vote Solar, a non-profit grassroots organization working to fight climate change and foster economic opportunity by bringing solar energy into the mainstream. Since 2002, this organization has engaged…

Read More

New York Net Metering Cap Suspended For Now

Adding to the distributed energy/net metering debate involving utilities and solar panel owners, New York State for now has lifted the cap on net metering. pv-magazine reported last week that New York regulators have suspended the existing cap on the state’s net metering program. This suspension will remain in effect until a new valuation is concluded under the Reforming the Energy Vision (REV) process. Among other goals for 2030, New York’s REV is targeting that 50% of all New York’s energy will…

Read More
Kirigami inspires new solar cell technology

Kirigami Inspires New Solar Cell Technology

Researchers at the University of Michigan have created a lattice-like solar cell that can stretch like an accordion, allowing it to tilt along the sun’s trajectory and capture more energy. The details of the oddly shaped solar film, inspired by the Japanese art of paper cutting called kirigami, are in a paper recently published in the journal Nature Communications. The new design helps fix a problem with most solar power systems – the sun moves and the panels don’t. By…

Read More

New Rooftop Wind Turbine Technology

Wind power is a major source of renewable electric power in many places around the world. We usually associate wind power with tall wind turbines located in remote locations or far out to sea. In July, Denmark produced 140% of its domestic energy from just such turbines, according to The Guardian. Yes, that record was established over a rather windy 24-hour period, but it is remarkable all the same. Until now, small wind turbines that are sized for residential and…

Read More
Solar Decathlon 2015 Kicks Off

Solar Decathlon 2015 Kicks Off

Solar Decathlon 2015, a design and build competition involving university teams from around the globe, kicked off today with keynote speaker US Secretary of Energy Dr. Ernest Moniz. The Decathlon asks teams to design and build homes powered by the sun that are affordable, energy efficient, attractive, and easy to live in, which are judged in several competitions. The homes are on display throughout the competition so spectators can tour them. “These inspiring collegiate teams show the world how energy-efficient building design…

Read More

Coca Cola Saves Energy With Umisol Window Film

Umisol Infrared Blocking Filter was recently installed at the Coca-Cola headquarters in Brussels. The project is expected to create a net profit of 14 €/m²/year. Energy efficiency is central to the European strategy with the 2020 – 2030 – 2050 EU Directives for smart and sustainable growth and the progression to a resource-efficient economy. By 2050 the EU aims to significantly reduce emissions by 80-95% compared to 1990. The greatest potential for energy savings exists in buildings. The Commission’s plan regarding…

Read More
Solar power program in California

New Partnership Helps California Businesses Get Solar Power for Less

Renew Financial, a leading clean energy finance company, and SolarCity recently announced a partnership that creates a unique financing option for small and medium-sized businesses that combines low-cost SolarCity-structured financing with Renew’s PACE (Property Assessed Clean Energy) program through the CaliforniaFIRST program. CaliforniaFIRST provides affordable financing for efficiency upgrades — including drought-tolerant landscaping, energy efficiency improvements and solar energy installation — to more than 20 million Californians. Over the past year, Renew Financial has expanded the availability of CaliforniaFIRST to more…

Read More
Doors and windows effect R-value of a building

What Affects the R-Value of a Building?

This is part two of our posts on R-value. Read the first post to get a definition of R-value and find out what it means to you. Doors and Windows As much as we love, and need, doors and windows, they are not good for a building’s insulation value. Doors open and close, allowing air to move freely inside and out. Additionally, it can be tough to completely seal the gap around a door, causing even more air leakage when…

Read More
R-value of building insulation

What Is R-Value and What Does It Mean To You?

What Is R-Value? Simply put, R-value is a measurement of how insulating a building material is, protecting one side from the heat or cold on the other side. A higher R-value means that a material insulates better than one with a lower value. In order to get an idea of what these values are, here are a few examples of common building materials and their R-values: 1/2″ drywall – 0.45 1/2″ plywood – 0.62 4″ wide brick – 0.80 1″…

Read More

3 DIY Projects to Save Money and Make Your Home More Energy Efficient this Winter [Free Infographic]

By now, you’ve probably gotten your first abrupt taste of winter’s chill. Fall’s weather is unpredictable, but that first really frigid day is a harsh reality check that you’re completely unprepared for the changing of the seasons. Don’t fret! Dig your coat out of the back closet, grab a steaming cup of hot cocoa and read up on our weekend projects to keep your home warm and toasty without breaking the bank. Check your Home for Air Leaks If you…

Read More

Cleaner Fracking Makes Cover Story at Chemical & Engineering News

Some companies have developed chemical treatments to remove contaminants and microbes from the wastewater, which can then be reused, while others use evaporators to separate fresh water from the brine. Bomgardner notes that treating the wastewater is a special challenge in the Marcellus Shale area of the Appalachian Basin, where wastewater — millions of gallons per well — must be trucked away for disposal. The cost of disposal is spurring oil and gas companies to adopt these and other technologies that could limit the amount of contaminated water that reaches people, plants and animals, the article notes.

Read More

Put NZEB Sustainability into Practice by Developing Zero Energy Concept Buildings

This letter concerning the Net-Zero Energy Building (NZEB) comes to Green Building Elements from Rollin H. White: The goal of NZEB to generate at least the same amount of energy as buildings consume doesn’t solve the problem of how to construct buildings which are completely self sufficient. A more holistic approach is to reach beyond NZEB to Zero Energy Concept Building (ZECB). ZECB is a leap forward ahead of NZEB because Zero Energy Concept Building includes technology to purify waste…

Read More

Triboelectric Generator Produces Electricity by Harnessing Friction Between Surfaces

Researchers have discovered yet another way to harvest small amounts of electricity from motion in the world around us – this time by capturing the electrical charge produced when two different kinds of plastic materials rub against one another. Based on flexible polymer materials, this “triboelectric” generator could provide alternating current from activities such as walking.

Read More

Coal Generation Drops 19 Percent in One Year in US

Looking at fossil fuel use – coal. [repostus hash=e658e82b89506aedb9020a74ce8a9297 title=Coal+Generation+Drops+19%25+in+1+Year+in+US host=Clean+Technica short=1bVMC snip=%C2%A0+Power+generation+from+coal+is+falling+quickly.+According+to%C2%A0new+figures%C2%A0from+the+U.S.+Energy+Information+Administration%2C+coal+made+up+36+percent+of+U.S.+electricity+in+the+first+quarter+of+2012+%E2%80%94+down+from+44.6+percent+in+the+first+quarter+of+2011.+That+stunning+drop%2C+which+represented+almost%26hellip%3B thumb=http%3A%2F%2Fimg.1.rp-api.com%2Fthumb%2F1951748 jump=3]

Read More
×