Benefits Of Integrating Energy Storage With Concentrating Photovoltaic (CPV) Technology

See on Scoop.itGreen Energy Technologies & Development

Duane Tilden‘s insight:

>Soitec’s new fifth-generation Concentrix CPV systems incorporate modules with a 30 percent market-leading module efficiency (or two to three times the efficiency of conventional PV technology). CPV technology converts sunlight directly into clean electricity via concentrator optics and high-efficiency solar cells, offering the best design for use in sunny regions as it delivers environmentally friendly, low-cost, reliable solar-generated electricity. Additionally, the CPV system’s two-axis tracker allows a high and constant power production throughout daylight hours.

 

Ultracapacitors are energy storage devices that charge rapidly from any electrical energy source and discharge their stored energy on demand. In combination with a photovoltaic system, their function will be to act as a standby reservoir of electrical energy to mitigate the variability of solar energy generation.

 

This firming of the output of a utility-scale commercial CPV system is intended to reduce demand on the electric grid to fill in short-term solar valleys in order to maintain a facility’s electricity output. In addition to reducing the variability of a solar power plant, integrated ultracapacitor-CPV systems will benefit public utility customers by reducing investment in utility generation capacity to meet transient peak power demand.<

 

 

See on www.marketwatch.com

Corrugated recycling rate hits 91%

See on Scoop.itGreen & Sustainable News

 

In 2012, 91% of corrugated packaging used in the U.S. was recycled.  That makes corrugated the most recycled packaging material, according to a news release from the Washington, D.C.-based Corrugated Packaging Alliance.

 

 

Duane Tilden‘s insight:

Corrugated’s recycling record has improved significantly since 1993, when about 55% of the material was recycled, according to the alliance.

See on www.thepacker.com

Integrating Building into the Smart Grid

See on Scoop.itGreen Building Design – Architecture & Engineering

It will take time to get from point A, today’s grid and building technologies and power markets to point B, a Smart Grid with intelligent buildings and transactive markets, but it can be done.

Duane Tilden‘s insight:

>Transactive energy will play a critical defining role in grid modernization and shaping the Smart Grid.  Buildings, as noted in last week’s article consume 40% of the nation’s energy.  And while building owners can justify purchase decisions on energy savings as well as sustainability values, there’s another crucial factor for building owners to invest in technologies that reduce energy use and deliver self-generation.  That reason is to address the increasing vulnerability of the electrical grid to momentary and sustained power outages to both natural and human causes.

Buildings and their occupants are impacted by grid-related power outages.  The negative impacts range from reduced work productivity and decreased occupant safety and health to reductions in lifestyle standards.  Just like real estate values are higher for green buildings with LEED recognition, in the future, buildings that are grid-hardened may command premium prices because they preserve delivery of services regardless of grid status.  It is a compelling new variable in value propositions for tenants and occupants.<

See on theenergycollective.com

Wind turbines to power Scotland’s railways

See on Scoop.itGreen & Sustainable News

A Scottish railway operating company has been given the green light to install two wind turbines at a West Lothian railway depot. They are expected to produce 14,000kWh of electricity …

Duane Tilden‘s insight:

A Scottish railway operating company has been given the green light to install two wind turbines at a West Lothian railway depot.

They are expected to produce 14,000kWh of electricity – enough to power a small station like Greenfaulds, Cumbernauld in Scotland – and save almost eight tonnes of carbon emissions every year. ScotRail also expects to save around £4,500 in energy bills per year, which it plans to reinvest in more renewable energy schemes on Scotland’s railways.

See on www.energylivenews.com

China Invests Billions in International Renewable Energy Projects

See on Scoop.itGreen & Sustainable News

See on insights.wri.org

A Significant Win for Clean Energy in Colorado

See on Scoop.itGreen & Sustainable News

Today Colorado Governor John Hickenlooper signed a measure to expand and improve the state’s Renewable Energy Standard that will drive clean energy investment, increase jobs and renewable project development in rural Colorado.

Duane Tilden‘s insight:

>As a result of the move by Xcel and the Governor’s signature on SB 252, Colorado will have an additional 1,000 MW of renewable energy or a 40 percent increase from the current amount of installed renewable energy in the state.

The announcement pulled the rug from under fossil fuel funded opponents of SB 252 who had argued renewable energy is too expensive.

The bill, co-sponsored by Senate President John Morse and House Speaker Mark Ferrandino, will also expand opportunities for distributed generation and eliminates unnecessary preferences for in-state generation.<

See on switchboard.nrdc.org

101-Year-Old Toledo Museum of Art Building Goes Temporarily “Off the Grid” After 20 Years of Implementing Green Initiatives – absolutearts.com

See on Scoop.itGreen Building Operations – Systems & Controls, Maintenance & Commissioning

Museum briefly becomes a provider, rather than user, of electricity

Duane Tilden‘s insight:

>TOLEDO, OHIO–On Tuesday, May 21 the Toledo Museum of Art achieved a milestone in its 20-year effort to reduce energy consumption: its 101-year-old Beaux Arts main building stopped drawing power from the electrical grid and actually started returning power to the system. The ongoing process, which incorporates using sustainable energy practices such as solar power, energy-efficient lighting, micro turbines and chillers, has resulted in hundreds of thousands of dollars in cost savings over the years.

[…]

Bernhard cited lighting as a good example. The first generation of LED lights weren’t suitable for illuminating and protecting art, so they were bypassed at the time. Now that the technology has dramatically improved, LED fixtures are now being introduced into the galleries, where lights frequently burn out from continual usage. The new lights not only save energy but last much longer, decreasing labor costs associated with the constant replacement of bulbs. The lighting in the renovated lot is also provided by new LED fixtures, which provide greater illumination while using less electricity

Bintz and Bernard also added new micro turbines and chillers to the power plant at TMA’s world-famous TMA Glass Pavilion during last year’s energy upgrade. The heat from the building’s working glass hot shop is recycled into the rest of the building during cold months. While generating electricity, the micro turbine waste heat is used to heat the building in the colder months and generate chilled water for air conditioning in the summer.<

See on www.absolutearts.com

Waste Management’s Hidden Value Driver Doesn’t Stink – DailyFinance

See on Scoop.itGreen Energy Technologies & Development

One thing has plagued mankind from the very first man caves tens of thousands of years ago to the streets of modern day cities: waste. Where do you

Duane Tilden‘s insight:

>Waste Management has quietly become a leader in waste to energy (WtE) and landfill gas to energy (LGTE) technologies. […] The company, using various sources of waste as feedstock, generates up to 550 MW of renewable energy each year – enough to power almost 1.2 million homes. Internal goals call for increasing that figure to 915 MW (2 million homes) by the end of the decade.

Waste to energy

Waste Management’s waste to energy services ignite solid and municipal waste to produce syngas, which is burned to spin turbines and, alas, create renewable electricity. Wheelabrator, the company’s subsidiary, operates 17 WtE facilities in the United States that can convert over 8 million tons of waste into 333 MW each year. That is second only to Covanta, which owns 44 facilities that convert over 20 million tons of waste into 9 million MWh of electricity each year – equivalent to 8% of all renewable energy in the United States.<

See on www.dailyfinance.com