Showing posts with label Micro grids. Show all posts
Showing posts with label Micro grids. Show all posts

Monday, November 4, 2013

Small wind and micro-generation enjoy renaissance in UK


While the British government’s inexplicable decision to build two new nuclear reactors has dominated the headlines, Great Britain has meanwhile achieved two little-heralded milestones in renewable energy.
Revised statistics on the small wind industry indicates that the country surpassed 100 MW of installed small wind capacity in 2012. Total installed small wind capacity will approach 200 MW this year according to a recently issued report on Britain’s small wind industry by Renewables UK, formerly the British Wind Energy Association. Britain’s small wind industry is one of the world’s most dynamic.
More significantly, total installed capacity under Britain’s feed-in tariff program broke the 2,000 MW barrier at the end of August according to the Department of Energy & Climate Change (DECC).
Britain is now within striking distance of surpassing the USA – once a world leader in small wind – in total installed wind capacity if growth continues at the current pace. At the end of 2012, the US had an installed small wind capacity of 216 MW.
Growth Due to Feed-in Tariffs
Through the end of 2013, Britain’s innovative feed-in tariff policy will account for four-fifths of total small wind capacity installed in the country. Feed-in tariffs for what Britain calls microgenerators were implemented in 2010.
The remainder of the small wind capacity had been installed previously under subsidy programs.

New York suburbs eye microgrids in time for next hurricane


New York City’s Rockaway Peninsula took the brunt of Hurricane Sandy when the storm blew ashore a year ago, leaving the Rockaways in Queens devastated from flooding and 34,000 without electricity for weeks.
In the ensuing 12 months, the city has suggested many ways to make itself more able to withstand such storms. As part of New York City’s climate change response plan, “A Stronger, More Resilient New York,”  issued earlier this year, one of the city’s suggestions to help the Rockaways survive the next hurricane is for the peninsula to become the site of a microgrid pilot project that will help keep the lights on at hospitals, schools and other critical infrastructure during and after a storm.

Credit: dakine kane/flickr
The Rockaways, which sits at the terminus of the Long Island Power Authority’s grid in the area, is ideal for a microgrid project because it’s congested and highly vulnerable to flooding during major storms with a high probability of being devastated again in a future storm, said Tom Bourgeois, deputy director of the Pace Energy and Climate Center at Pace Law School.
Generally, a microgrid works like this: When power is lost across an area’s electric grid, some public services and critical private businesses could be linked with their own self-contained power lines using power generated nearby, either using “distributed generation” power sources such as rooftop solar panels and small wind turbines, or a small centralized power source such as a natural gas power plant. Many microgrids can be “islanded,” which means they can operate independently from the larger grid when the power goes out, keeping the lights on for those who are connected to the microgrid.
“As Superstorm Sandy demonstrated, the Rockaways is a highly vulnerable densely populated area of the grid,” said Jackson Morris, director of strategic engagement at Pace Energy and Climate Center. “A microgrid that is more resilient and has the ability to ‘island’ makes it (the Rockaways) a strong candidate for a microgrid kind of approach.”
With that in mind, the city’s resiliency plan calls for its officials to work with the U.S. Department of Energy, the New York State Smart Grid Consortium and state agencies to study the feasibility of microgrids for the Rockaways and other storm-vulnerable places throughout the city.
“We’re focusing on clusters of critical facilities that would help enhance public facilities in an emergency event — public housing, other critical assets, telecom switching hubs, wastewater treatment plants,” said Sergej Mahnovski, director of New York Mayor Michael Bloomberg’s Office of Long Term Planning and Sustainability.