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Tag: basics
Interconnection Basics for Photovoltaic Systems
2013-12-17 14:06:00| Electrical Construction & Maintenance
By Ryan Mayfield, Renewable Energy Associates Photovoltaic (PV) installations in the United States are most commonly interconnected with electric utility systems as opposed to being set up as stand-alone or off-grid systems. The most common types of PV systems are the grid-direct variety — or those that do not use energy storage, namely batteries. These grid-direct systems have an inverter connected directly to the PV array on the DC side and are directly connected to the electric utility system on the AC side. read more
Tags: systems
basics
interconnection
photovoltaic
Transportation Director Leah Treat says Back to Basics street maintenance program shows great progress to 100 miles goal
2013-11-25 20:57:48| PortlandOnline
Portland Bureau of Transportation Director Leah Treat today announced that the City preserved 76 miles of streets from July through October, well on its way to meet the mayors goal of 100 lane miles paved this fiscal year.
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great
program
street
Back To Basics
2013-11-25 20:47:37| PortlandOnline
News Release: Transportation Director Leah Treat says Back to Basics street maintenance program shows great progress to 100 miles goal
2013-11-25 19:54:48| PortlandOnline
Warsaw to lay climate deal basics
2013-10-09 13:45:00| Climate Ark Climate Change & Global Warming Newsfeed
Associated Press: Polands environment minister says his challenge at next months climate conference will be to lay foundations for a new global emission cuts deal. Marcin Korolec told The Associated Press that the United Nations COP19 conference in Warsaw will require huge work in making some 200 participating nations agree on conditions for a deal to be signed in 2015 in Paris. A major point of contention is how to divide the burden of cuts between industrialized nations and emerging economies. The deal...
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