The U.S. electric grid is making significant progress to zero-carbon status, according to a report from the Lawrence Berkeley National Laboratory.
Greenhouse-gas emissions from the electricity sector last year were 52% lower in 2020 than the U.S. Energy Information Administration predicted they would be back in 2005, the report says. Power-sector emissions fell 40% from 2005 to 2020, with much of the drop driven by cheap natural gas supplanting coal as the dominant fuel for U.S. power plants.
Further emissions cuts will require greater adoption of clean technologies such as energy storage, and that is achievable with the declining cost of solar and wind power generation, and battery storage, the report says. Low-carbon resources could reliably meet as much as 70%–90% of power supply needs at low incremental cost.
Other sectors, including the built environment, have made less progress in cutting emissions. Residential building emissions declined 29% from 2005 to 2020. Commercial building emissions dipped 32% during the same period.
Grid-interactive efficient buildings could help to make the grid more efficient by reducing the need for new supply and delivery infrastructure and providing another form of demand flexibility.
Related Stories
| Aug 2, 2012
Greenbuild summit will focus on greening affordable housing
A two-day summit focused on green building in the affordable housing market will be held Nov. 13 - 14, 2012 in San Francisco, Calif. at the Greenbuild International Conference & Expo.
| Aug 2, 2012
More than 250 downtown El Paso, Texas buildings don’t meet safety codes, says city’s fire department
A total of 726 buildings were inspected for unsafe conditions, and 266 did not meet safety codes, while 112 buildings were found to be vacant and needed further inspection.
| Jul 26, 2012
Wisconsin may establish stormwater storage requirement for green roofs
Green roofs and other green infrastructure would be required to capture stormwater under a draft state wastewater discharge permit from the Milwaukee Metropolitan Sewerage District.
| Jul 26, 2012
SouthPark Mall in Charlotte reopens after heavy rains collapse part of its roof
Code enforcement officials in Charlotte, NC gave the okay for the SouthPark Mall to reopen after two parts of its roof collapsed following heavy rains last week.
| Jul 26, 2012
New NRCA photovoltaic roof systems guidelines released
The National Roofing Contractors Association’s update of its Guidelines for Roof Systems With Rooftop Photovoltaic Components is now available.
| Jul 26, 2012
DOE/ASHRAE design guide aims to cut energy use at hospitals, schools, retail stores
The Advanced Energy Design Guidelines from the Department of Energy and the American Society of Heating, Refrigerating and Air Conditioning Engineers aims to provide ways for hospitals, schools, and large retail buildings to trim their energy consumption by 50%.
| Jul 19, 2012
Bayview Property Managers agrees to record $800,000 building code fine
A San Francisco property-management company has agreed to pay a record $800,000 civil fine for hundreds of building code violations at rental properties.
| Jul 19, 2012
Glass ‘biodome’ helps Parkview Green FangCaoDi project in Beijing achieve LEED Platinum
A glass envelope acting as a kind of biodome encapsulates four mixed-use towers at Parkview Green FangCaoDi, an 800,000 sf mixed-use development in Beijing. The glass structure helped the development to achieve LEED Platinum certification.
| Jul 19, 2012
UMass-Boston's Bevington: 'Financing alternatives crucial to energy-efficiency upgrades'
It’s conceivable that innovation in project finance can do for building efficiency in the coming century what 30-year mortgages did for home ownership in the last, this article asserts.
| Jul 19, 2012
NYC eases building code to create ‘micro apartments’ in Kips Bay
New York City has implemented a program to encourage construction of "micro-apartments" in the Big Apple, where rents are exorbitant and the number of singles is on the rise.
