Articles & Publications
Reducing (and eventually reversing) the increase in greenhouse gases (GHGs) in the atmosphere due to human activities, and thus reducing the extent and severity of anthropogenic climate change, is one of the great challenges facing humanity. While most of the man-caused increase in GHGs has been due to fossil fuel use, land use (including agriculture) currently accounts for about 25% of total GHG emissions and thus there is a need to include emission reductions from the land use sector as part of an effective climate change mitigation strategy
Investments in solar photovoltaics and wind turbines are soaring as costs fall and governments and companies seek to reduce greenhouse-gas emissions. But fluctuating power from the wind and sun threatens to destabilize electricity grids. As more intermittent sources are connected, the power surges and crashes. This increases variability in voltage, in power and in the frequency of alternating current.
ABSTRACT: A variety of inherently robust energy storage technologies hold the promise to increase the range and decrease the cost of electric vehicles (EVs). These technologies help diversify approaches to EV energy storage, complementing current focus on high specific energy lithium-ion batteries.
ABSTRACT: Photovoltaic (PV) solar energy systems are being deployed at an accelerating rate to supply low-carbon electricity worldwide.
Abstract: Wide bandgap power semiconductor devices offer enormous energy efficiency gains in a wide range of potential applications. However, today, they remain too costly relative to Si devices to gain ubiquitous adoption in many higher power applications. In 2014, ARPA-E launched a new research program entitled SWITCHES, that seeks to enable the development of high voltage (1200 V+), high current (100 A) single die power semiconductor devices that, upon ultimately reaching scale, have the potential to reach functional cost parity ($/A) with silicon power transistors while also offering...