Green Building News

California Poised to Require Solar Panels

Posted on May 8, 2018 by Scott Gibson

The California Energy Commission is expected to approve the new rule when it votes this week, making California the first state in the country to require that new houses come with photovoltaic(PV) Generation of electricity directly from sunlight. A photovoltaic cell has no moving parts; electrons are energized by sunlight and result in current flow. panels.

"California is about to take a quantum leap in energy standards," Bob Raymer, technical director for the California Building Industry Association, told The Mercury-News. "No other state in the nation mandates solar, and we are about to take that leap."

Chinese Firm to Launch Glass Solar Roofing Tiles

Posted on May 3, 2018 by Scott Gibson

A Chinese firm has developed a glass-topped solar roofing tile that should go on sale later this year, a potential challenger for Tesla's Solar Roof in the upscale solar market.

Hanergy, which is based in Beijing, announced last month it would introduce a new generation of its HanTiles in the U.S. The tiles, which combine thin-film photovoltaics with high-transmittance glass, can replace conventional roofing.

Report Cites Carbon Impact of Biomass Plants

Posted on April 30, 2018 by Scott Gibson

Burning wood and wood waste to generate electricity will result in net carbon emissions over the next several decades even under the best-case scenarios promoted by the industry, according to a recently released report.

Writing in Environmental Research Letters, author Mary S. Booth disputes assertions that burning biomassOrganic waste that can be converted to usable forms of energy such as heat or electricity, or crops grown specifically for that purpose. is carbon-neutral, challenging renewable energy investments in the U.S., Europe, and Asia where imported wood pellets are burned as a replacement for coal.

Bill Would Roll Back New Solar Tariffs

Posted on April 26, 2018 by Scott Gibson

A proposed federal law, HR 5571, would reverse the 30% tariff on imported solar panels ordered by President Donald Trump in January. The bill was introduced in the U.S. House of Representatives on April 19 by Representative Jacky Rosen, a Democrat from Nevada, and four co-sponsors.

New Idaho Law Discourages Energy Code Updates

Posted on April 25, 2018 by Scott Gibson

What happens when a community decides that the statewide building code doesn't go far enough and adopts a newer version of a model code with tougher rules on energy conservation?

In Idaho, one of those communities was Boise, the state capital and Idaho's largest city.

A new Idaho law will prohibit towns and cities from preempting the state's energy code with more stringent requirements in the future.

Efficiency Advocates to Study Energy Audits

Posted on April 20, 2018 by Scott Gibson

Residential energy audits are supposed to give homeowners a clear idea of how they can reduce energy use and save money, but a lack of guidelines and standards for auditors means their reports may instead be unpersuasive or difficult for homeowners to understand.

That, at least, is the theory behind a new research effort ledLight-emitting diode. Illumination technology that produces light by running electrical current through a semiconductor diode. LED lamps are much longer lasting and much more energy efficient than incandescent lamps; unlike fluorescent lamps, LED lamps do not contain mercury and can be readily dimmed. by Dr. Reuven Sussman, a psychologist at the American Council for an Energy-Efficient Economy, and it's the reason Sussman is gathering energy audit reports from anyone who would care to send him one.

California Lenders Sued Over PACE Financing

Posted on April 17, 2018 by Scott Gibson

Los Angeles County and two private lending partners have been sued by attorneys representing homeowners who say they were talked into taking out loans for energy upgrades but can't afford them and now risk losing their homes to foreclosure.

Lighting Loophole Cuts Into Energy Savings

Posted on April 12, 2018 by Scott Gibson

The most inefficient type of fluorescent tube should have been pushed out of the market by a 2012 Department of Energy lighting standard, but a loophole has allowed millions of them to stay on store shelves and in American homes and businesses, the Appliance Standards Awareness Project says.

Researchers Claim to Develop a Concrete Alternative

Posted on April 9, 2018 by Scott Gibson

Researchers in the U.K. claim to have found a way to use desert sand in a composite construction material that's just as strong as concrete but has only half of its carbon footprintAmount of carbon dioxide and other greenhouse gases that a person, community, industry, or other entity contributes to the atmosphere through energy use, transportation, and other means. .

Four post-graduate students from Imperial College London developed a material they're calling Finite that could help address a global shortage of construction-grade sand used as fine aggregate in concrete, the publication Dezeen reported.

Mass. Bill Would Require Energy Scorecards Be Given to Homebuyers

Posted on April 5, 2018 by Scott Gibson

The governor of Massachusetts has introduced legislation that by 2021 would require that people selling their homes provide potential buyers with home energy performance ratings.

The Boston Globe said the measure filed by Gov. Charlie Baker earlier in the week would be the first of its kind in the U.S.

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