Bay Area to install over 5,000 EV charging stations

Bay Area to install over 5,000 EV charging stations

Share 29 1

Three EV stations were installed across the street from San Francisco City Hall in 2009 as part of a pilot program to promote EV interest. Two years later the area is set to install more than 5,000.

The San Francisco Bay Area is set to receive $5 million to install charging stations for electric vehicles throughout the area, the Department of Energy announced Wednesday.

The $5 million will cover the installation of 50 fast-charging EV stations along highways, 2,000 public stations for public parking lots and participating company-owned parking lots, and 3,000 residential charging stations.

Approval for the funds came through last week from the Bay Area Air Quality Management District Board of Directors, a panel that oversees air quality concerns for the nine counties that make up the Bay Area. The funds will be distributed as grant money as part of its "Spare the Air" program.

"In the Bay Area, the transportation sector accounts for more than 50 percent of air pollution. Significant emission reductions from the transportation sector will help the Bay Area attain and maintain state and national air quality standards," the board said in a statement.

The announcement is something of a milestone for the region when one considers that as recently as February 2009 it was big news that the city of San Francisco was installing just three EV charging stations as part of a pilot project.

But the infrastructure change does follow an ambition plan that was set forth two years ago by three area mayors.

In November 2008, the mayors of San Francisco, Oakland, and San Jose publicly announced that they were setting a goal to make the Bay Area the electric vehicle capital of the U.S.

Installing thousands of stations was not on the list at that point. Instead their nine-point plant toward reaching their EV capital vision included establishing EV station standards, and "identifying a roll-out plan" for those stations.


Oregon Home Approaches Net-Zero With PV/Thermal System

Oregon Home Approaches Net-Zero With PV/Thermal System


By Douglas R. Boleyn, P.E.
Published: July 29, 2010

South façade of Oregon home at winter solstice.

South façade of Oregon home at winter solstice.


Designing homes for near net-zero-energy consumption in the cloudy Pacific Northwest is a challenge. But "Morning Sun," built in 2009, is a residence designed to do just that.

The home is located in a suburb of Portland, Ore., and uses energy-efficiency strategies along with a combined photovoltaic (PV)/solar thermal energy system to reach for the "net-zero" goal.

The design and construction of net-zero-energy buildings is near the top of the global energy agenda. The climate of the western portions of the Pacific Northwest provides particular opportunities and challenges. The primary opportunity is working with a mild climate with few extremes, hot or cold. This climatic feature enables energy-efficiency strategies such as insulation and air-source heat pumps to be very effective.

The primary challenge for the climate is capturing enough utilizable solar energy to provide the energy-producing part of the equation. Winter tends to be very cloudy, yet is the season with the largest energy demand, primarily for space heating. Capturing the maximum amount of energy when rare winter solar radiation is available is key to improving winter performance. Harvesting maximum amounts of electricity (running the meter backwards) in the summer months is also key to moving toward annual net-zero-energy consumption.

The "Morning Sun" residence and its energy features and systems were designed to be a comprehensive integration of energy-efficiency features and high energy-yield solar features that work with the climate.

The homeowner had previously lived in a 1970s-era solar-powered home for over 30 years. The earlier home was approximately 2,800 square-feet and had a solar water heater, a 2.6-kilowatt PV system and a sun room with lots of south windows. These features, combined with a high-efficiency heat pump for heating and cooling, enabled the house to consume a net of 9,000 kilowatt-hours per year from the utility company. This resulted in an Energy Utilization Index (EUI) of approximately 10 kilo British thermal units per square foot per year (kBTU/ft2/yr).  While this EUI is just 25 percent of the U.S. home average of 46 kBTU/ft2/yr, the owner wanted the new "Morning Sun" residence to have an EUI of less than half the previous residence, with a design goal EUI of 4 for the household.

The result was a 2,836-square-foot home located on a south-facing hillside on a steeply sloping lot. The lot was selected for solar access (90 percent) as well as for the beautiful mountain views to the east and south, so extensive window areas were included to capture sun and views. The house consists of two levels and an open loft. The main level (1,788 square-feet) contains the great room/living area, the master suite and a home office. The lower level (879 square-feet) consists of two bedrooms, a bathroom and a recreation room. The open loft (169 square-feet) is a sun room with views.