Research Themes +
Energy Technologies Area (ETA) researchers are continually building on the strong scientific foundation we have developed over the past 50 years. We address the world’s most pressing climate challenges by bringing to market energy-efficient innovations across the buildings, transportation, and industrial sectors. ETA is at the forefront of developing better batteries for electric vehicles; improving the country's aging electrical grid and innovating distributed energy and storage solutions; developing grid-interactive, efficient buildings; and providing the most comprehensive market and data analysis worldwide for renewable technologies like wind and solar.
Strategic Initiatives +
The Energy Technologies Area (ETA) Strategic Plan is the guiding force for our research and development for the next ten years. It clearly charts a path toward clean-energy solutions and focuses on five detailed Strategic Initiatives. The Plan provides an in-depth look at how ETA is accelerating research to provide affordable, clean energy to all while accomplishing deep, economy-wide decarbonization, looking to avoid a rise in global average temperature while simultaneously developing solutions to increase humanity's resilience to extreme weather volatility.
Publications
News +
For media inquiries,
please contact ETA
Interim Communications Manager
Kiran Julin

kjulin@lbl.gov
About Us +
The Energy Technologies Area (ETA) is unique in translating fundamental scientific discoveries into scalable technology adoption. Our approach combines an understanding of the marketplace and the role of state and federal regulation and policies. ETA's research drives real-world, practical results that affect and improve the everyday lives of Americans and those across the globe. Saving energy and battling the Climate Crisis are key to the foundation of our research, which is driven by technoeconomic analysis and in-lab experimentation and discovery.

Publications

Publications by Research Area

Demand Response

Electricity Markets & Policy

Energy Efficiency

Industrial Energy Analysis

Renewable Energy

Sustainable Energy & Environmental Systems

Publications by Division

Building Technology (BTUS)

Energy Analysis (EAEI)

Energy Storage (ESDR)

2008

Berdahl, Paul H, and Hashem Akbari."Evaluation of titanium dioxide as a photocatalyst for removing air pollutants." (2008).

Akbari, Hashem, and Ronnen M Levinson."Evolution of cool roof standards in the United States."Advances in Building Energy Research 2.1 (2008) 1-32. DOI

Wray, Craig P, and Hashem Akbari."The effects of roof reflectance on air temperatures surrounding a rooftop condensing unit."Energy and Buildings 40.1 (2008) 11-28. DOI

Akbari, Hashem, and Leanna S Rose."Urban Surfaces and Heat Island Mitigation Potentials."Journal of the Human-Environmental System 11.2 (2008) 85-101. DOI

2007

Synnefa, Afroditi, Mat Santamouris, and Hashem Akbari."Estimating the effect of using cool coatings on energy loads and thermal comfort in residential buildings in various climatic conditions."Energy and Buildings 39.11 (2007) 1167-1174. DOI

Akbari, Hashem, Surabi Menon, and Arthur H Rosenfeld."Global cooling: effect of urban albedo on global temperature."2nd PALENC and 28th AIVC Conference (2007) 1-5.

Levinson, Ronnen M, Hashem Akbari, and Joseph C Reilly."Cooler tile-roofed buildings with near-infrared-reflective non-white coatings."Building and Environment 42.7 (2007) 2591-2605. DOI

Akbari, Hashem, Darryl J Dickerhoff, and Josh Pollak."The effect of a cool-coating on the thermal effectiveness of exposed exterior ducts."Energy and Buildings 39.6 (2007) 681-692. DOI

Levinson, Ronnen M, Paul H Berdahl, Hashem Akbari, William A Miller, Ingo Joedicke, Joseph C Reilly, Yoshi Suzuki, and Michelle Vondran."Methods of creating solar-reflective nonwhite surfaces and their application to residential roofing materials."Solar Energy Materials and Solar Cells 91.4 (2007) 304-314. DOI

Wray, Craig P, and Hashem Akbari."The Effects of Roof Reflectance on Air Temperatures Surrounding a Rooftop Condensing Unit."Energy and Buildings 40 (2007) 11-28.

2006

Kaarsberg, Tina, and Hashem Akbari."Cool Roofs Cool the Planet."Home Energy (2006) 38-41.

Akbari, Hashem, Paul Berdahl, Ronnen M Levinson, Stephen Wiel, William A Miller, and Andre Desjarlais."Cool Color Roofing Materials." (2006).

Wray, Craig P, Hashem Akbari, Ronnen M Levinson, and Tengfang T Xu."Inclusion of Solar Reflectance and Thermal Emittance Prescriptive Requirements for Residential Roofs in Title 24." (2006).

Akbari, Hashem, Craig P Wray, Ronnen M Levinson, and Tengfang T Xu."Inclusion of Solar Reflectance and Thermal Emittance Prescriptive Requirements for Steep-Sloped Nonresidential Roofs in Title 24." (2006).

2005

Levinson, Ronnen M, Paul H Berdahl, Asmeret A Berhe, and Hashem Akbari."Effects of soiling and cleaning on the reflectance and solar heat gain of a light-colored roofing membrane."Atmospheric Environment 39.40 (2005) 7807-7824. DOI

Levinson, Ronnen M, Paul H Berdahl, and Hashem Akbari."Solar spectral optical properties of pigments—Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements."Solar Energy Materials and Solar Cells 89.4 (2005) 319-349. DOI

Levinson, Ronnen M, Paul H Berdahl, and Hashem Akbari."Solar spectral optical properties of pigments—Part II: survey of common colorants."Solar Energy Materials and Solar Cells 89.4 (2005) 351-389. DOI

Akbari, Hashem, Ronnen M Levinson, and Leo I Rainer."Monitoring the energy-use effects of cool roofs on California commercial buildings."Energy and Buildings 37.10 (2005) 1007-1016. DOI

Akbari, Hashem, Asmeret A Berhe, Ronnen M Levinson, Stanley Graveline, Kevin Foley, Ana H Delgado, and Ralph M Paroli."Aging and Weathering of Cool Roofing Membranes." (2005).

Akbari, Hashem, Ronnen M Levinson, William A Miller, and Paul H Berdahl."Potentials of urban heat island mitigation."Proceedings of the 1st International Passive and Low Energy Cooling for the Built Evironment 1 (2005) 11.

Akbari, Hashem, and Steven J Konopacki."Calculating energy-saving potentials of heat-island reduction strategies."Energy Policy 33.6 (2005) 721-756. DOI

Akbari, Hashem, and Andre Desjarlais."Cooling down the house: residential roofing products soon will boast "cool" surfaces."Professional Roofing (2005).

Levinson, Ronnen M, Hashem Akbari, Steven J Konopacki, and Sarah E Bretz."Inclusion of cool roofs in nonresidential Title 24 prescriptive requirements."Energy Policy 33.2 (2005) 151-170. DOI

2004

Akbari, Hashem, Paul H Berdahl, Ronnen M Levinson, Stephen Wiel, Andre Desjarlais, William A Miller, Nancy Jenkins, Arthur H Rosenfeld, and Chris Scruton."Cool colored roofs to save energy and improve air quality."ACEEE Summer Study on Energy Efficiency in Buildings, August 22-27, 2004 1 (2004) 1-16.

Akbari, Hashem, and Steven J Konopacki."Energy effects of heat-island reduction strategies in Toronto, Canada."Energy 29.2 (2004) 191-210. DOI