Conservation

BMW Tests Fuel-Cell Car

Karen Henry

BMW will begin testing a prototype hydrogen fuel-cell vehicle on public roads this month, Bloomberg reports. The automaker, which debuted its battery-powered i3 in 2013, says its fuel cell vehicle will be consumer ready sometime around 2025 to 2030. BMW’s fuel-cell Gran Turismo prototype has a 310-mile range — three times the range of the   …Continue Reading


Researchers Develop Cell that Can Store Solar at Night

Karen Henry

One of the drawbacks of current solar technology is the inability to store energy under dark conditions. A team of researchers at the University of Texas at Arlington has addressed this limitation by developing an energy cell that can store large-scale solar energy even when it’s dark. The UT Arlington team developed an all-vanadium photo-electrochemical   …Continue Reading


Energy Efficiency Program Saves Texas College $4.4M

Karen Henry

Midland College, in Midland, Texas, has completed construction of its multi-phased energy program with OpTerra Energy Services. The campus-wide sustainability improvements will help the college save $4.4 million in energy and operational costs over the next 15 years. Midland College partnered with OpTerra in 2012 to design and deliver an energy savings plan based on   …Continue Reading


White Efficiency 
Poses Challenge for Solid-State Lighting

Karen Henry

Lumens are not a very effective metric for assessing the efficiency of an LED light source. A more informative metric, according to a Soraa blog post, is optical watts per electrical watt, also known as the white efficiency. This physical quantity captures the efficiency by which electrical input power is converted to white optical power   …Continue Reading


Senators National Energy Policy Vision Leads to a Hopeful Future

Peter Lehner

Forty-five senators have sent a letter to the nation’s 50 governors with forward-thinking principles about what America’s energy future could look like. These senators argue that national energy policies should spur investment in our energy infrastructure to provide all Americans with affordable, reliable and cleaner energy, and cut carbon pollution to address the impacts of climate change   …Continue Reading


Google Builds Data Center on Site of Old Coal Plant

Linda Hardesty

Google is building a new data center in Alabama – its 14th data center site globally – but this one will be built on the grounds of a coal-fired power plant, according to Google’s blog. The Widows Creek coal power plant in Jackson County, Alabama, which has been scheduled for shutdown, will be redeveloped by   …Continue Reading


Diesel Genset Market to Reach $68B by 2024, Navigant Says

Karen Henry

Reciprocating engine-based gensets are among the fastest-selling, least expensive distributed generation (DG) technologies in the world. Global annual diesel genset capacity additions are expected to increase from 62.5 GW in 2015 to 103.7 GW in 2024, while global revenue from the installation of diesel gensets is expected to grow from $41.6 billion in 2015 to   …Continue Reading


Final Energy Conservation Standards for Packaged Terminal Air Conditioners Mirror ASHRAE/IES Standard 90.1-2013

Linda Hardesty

The Department of Energy issued a pre-publication final rule regarding energy conservation standards for Packaged Terminal Air Conditioners (PTACs) and Packaged Terminal Heat Pumps (PTHPs). Based on the analysis supporting this final rule, DOE was not able to show with clear and convincing evidence that energy conservation standards for PTAC and PTHP equipment at any   …Continue Reading


Excalibur Energy Becomes Preferred Supplier for Facilities Management Firm

Linda Hardesty

UK-based Excalibur Energy has been awarded preferred supplier status by facilities management firm Mitie for energy saving projects related to refrigeration and cooling in a range of client facilities. Excalibur provides consultancy, performance analysis and measurement with retrofit solutions to improve chiller efficiency without wholesale replacement. Excalibur optimizes the efficiency of chillers, cooling and refrigeration   …Continue Reading


Combining Solar with Ground Heat Pump Is Energy, Cost Efficient

Karen Henry

The energy- and cost-efficiency of buildings and areas can be improved by combining a ground heat pump with solar heating, according to the results of a project led by VTT Technical Research Centre of Finland. VTT used ecological hybrid solutions to enhance the efficiency of heat and electricity production in buildings and found that a   …Continue Reading