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jerryking : green_roofs   28

Diners show appetite for sustainability
June 20, 2013 | WSJ Supplement - Focus on Franchising | Julie Bennett
sustainability  greenhouses  green_roofs  fast-food  franchising  Boston 
november 2013 by jerryking
Salad of all seasons
April 12-19, 2007 | NOW Magazine |By Wayne Roberts
salads  fresh_produce  greenhouses  green_roofs 
april 2013 by jerryking
Conference to focus on urban farming in city
February 01, 2013 | The Boston Globe | By Patricia Harris and David Lyon-- Globe correspondents.

The economic stakes are surprising. At a City Hall agri-economic powwow in November, Trish Karter (founder of Dancing Deer Baking Co. and now of LightEffect Farms, which proposes farming in rooftop greenhouses) estimated that the packaged salad greens market in Metro Boston is worth $100 million annually. A lot of growers would like a piece of that.
urban  farming  Boston  fresh_produce  green_roofs  market_sizing 
april 2013 by jerryking
Rooftop Farms: Here to Stay or Passing Phase? | industrial -
September 7, 2012 | National Real Estate Investor |Jennifer V. Hughes,

Steven Peck, president and founder of the industry association Green Roofs for Healthy Cities, estimates there are less than 20 rooftop agriculture sites now nationwide. Some are farms with layers of soil and crops and others use hydroponic greenhouses.

Rooftop farming has many upsides... The companies that install rooftop farms pay all costs of construction. Rooftop agriculture carries many of the same environmental benefits as traditional green roofs. Rooftop farms often capture waste heat from buildings to use in their greenhouses in winter times, says Kate Siskel, BrightFarms' marketing associate. That means you have to pay less to cool, say, a facility with industrial ovens or a heat-emitting data center.

Rooftop agriculture projects also usually set up a system to capture storm water run-off, Siskel says. They provide some of the same insulation as a traditional green roof, which saves on heating and cooling. Some roof farms can even contribute to a building's LEED certification.

Then, there is the fact that a rooftop farm is a tenant like any other in a commercial building. Several rooftop farming companies declined to say how much they pay in rent, but Peck says it varies from .50 to $2 per sq. ft. It's not a lot, but Peck notes, "right now they're getting zilch."

"Roof space is a valuable asset and we need to use those spaces," he says. "We need the commercial building industry to wake up and learn that their roofs can do a lot more for them and for their neighbors." ...Robert S. Best, executive vice president at Jones Lang LaSalle, says he still thinks it's a tough sell. There are no green roofs or rooftop farms within the JLL portfolio, even though the company is an environmental leader in many other ways.

Best says building owners worry about whether a green roof or roof farm would cause problems with the roof that would void the warranty. So many urban roofs are cluttered with cooling towers, elevator equipment and window-washing rigs, making it hard to find space.

"My main question would be, "Why?'" Best says. "To get all the equipment on the roof, to put in all the beds, it's such a major undertaking-is it really worth all the trouble?

"I think the reason you don't see a lot of it is that it's not worth all the trouble that a green roof brings with it, at least for the big commercial property owners to even think about," Best says.
institutional_investors  commercial_real_estate  greenhouses  hard_to_find  green_roofs  BrightFarms  farming  agriculture  fresh_produce  voids  upside 
april 2013 by jerryking
Hydroponic Produce Gains Fans and Flavor -
August 2, 2011 | NYT | By GLENN COLLINS.

Gotham Greens, a new hydroponic garden in industrial Greenpoint that turns romantic notions of farming on their head. In a $2 million greenhouse, baby plants emerge from seeds embedded in tiny sponges made of fibers spun from volcanic basalt... Without question, modern hydroponic outfits display a growing degree of technological sophistication. While 25 employees at Gotham Greens propagate, hand-pick and hand-pack the produce at its 15,000-square-foot space, a rooftop weather station monitors wind, rain, temperature, humidity, carbon dioxide and light intensity. This data bonanza serves to regulate irrigation pumps, greenhouse vents, exhaust fans, gable shutters and shade curtains.

All this environmental hovering helps crops thrive without pesticides, fungicides or herbicides, and natural pest controls like parasitic wasps, lacewings and ladybugs are introduced to the 17-foot-tall greenhouse with its 75-foot-by-160-foot main production floor. And while all of the electronic data is displayed at the central computer on the rooftop at 810 Humboldt Street, Ms. Nelkin, who is also a business partner, can view it on her cellphone and can run the operation from anywhere on the planet.
Gotham_Greens  greenhouses  green_roofs  urban  local  locavore  fresh_produce  farming  agriculture 
april 2013 by jerryking
Ripe for Investment
Nov 26 2012 | National Post [Don Mills, Ont]: FP.1.| Amanda Kwan.

Because its greenhouse is on the roof of a building, Lufa Farms uses half the energy they would normally need to heat it.
greenhouses  green_roofs  skyscrapers  urban  Alterrus  Lufa_Farms 
april 2013 by jerryking
Could Toronto provide 10% of its fresh vegetable requirements from within its own boundaries? Matching consumption requirements with growing spaces
Green Roofs
Rooftop gardens are increasingly common in Toronto. In 2007, installations of green roof infrastructure reached 7,700 sq. m or 82,882 sq. ft. (or 0.77 ha or 1.9 acres), though how much of this is in food production is not currently known.
Toronto is ranked first among Canadian cities in green roof installation.7 In 2004, the city commissioned a study of the
suitability of green roofs (Banting, Doshi, Li, Missios, Au, Currie & Verrati, 2005) that found about 13,478 ha or 33,305 acres (21% of the city land area) represented a roofed area. About 4,984 ha (12,316 acres) of the roofed area (8% of the
total city land area) would be suitable for greening of some form (roofs of 350 sq. m (3,767 sq. ft.) or more at 75% roof coverage in buildings that had heating and cooling). How much of that area would be suitable for food production is unknown,
as the survey was based on spatial GIS data and did not fully examine issues of structural integrity, access, and growing infrastructure—all pertinent to commercial rooftop production. The authors did recommend a follow-up survey of structural
requirements to accommodate a range of media thickness on roofs. The city followed this study with a pilot program that offered $50 per square meter for any resident or building owner to install green roofs. A green roof bylaw has recently been adopted to require roof greening on many new types of construction in the city8; however, it may not be well designed to encourage food production.
Toronto  fresh_produce  green_roofs 
april 2013 by jerryking
Rooftop gardening provides environmental benefits in urban areas
By David Runk
Tuesday, July 27, 2010

Manufacturers, meanwhile, often have large, unused flat roofs but little land to spare.

Moxlow, who grew up gardening, built a plastic-covered greenhouse, known as a hoop house, on a stretch of his company's flat roof and used forced air and a hot-water heater to keep it warm during the winter. But he has designed and is testing a system to harness heat from the forging operation that would otherwise be wasted.

The forge heats metal to between 1,600 and 1,800 degrees. After pieces are formed, they are put into big bins and set outside to cool. Moxlow's system would roll some bins under a 4,000-gallon tank inside the plant to heat water to warm the greenhouse. In northern states where greenhouses often shut down for the winter because of the high cost of heating, the system could make year-round growing more practical, he said.... Designed for roofs of at least 10,000 square feet, its systems would use solar panels to heat greenhouses where plants grow in water. The greenhouses should lower buildings' utility costs by absorbing sunlight in the summer and providing additional insulation in the winter, the company says.
manufacturers  greenhouses  green_roofs  urban  gardening  farming  high-cost 
april 2013 by jerryking
The Future for Urban Greenhouses is Well-Grounded
Mar/Apr 2013 | Resource | Paul Selina.

Even at the highest production levels, many acres of greenhouses are required to provide for the needs of a growing city. While the concept of multiple rooftop greenhouses, or multilevel greenhouses, is routinely reported by the media, this may not be the most practical or cost-effective solution to meet the food demands of a growing population:

* Replication of the climate system, support infrastructure, management, packaging, and distribution all add costs, and each greenhouse needs connections to utilities, and separate liquid and solid waste management. The logistics of lifting and lowering tons of produce, materials, and people can also be costly and inefficient.

* Crops are living biological systems that require highly skilled growers to achieve their production potential, maintain plant health, and minimize pesticide usage. The retail outlets and restaurants supplied by the greenhouse need a reliable supply of quality produce for their customers, without any interruptions caused by crop management mistakes. While we can gather and analyze more information about the climate and plant performance, using that information will require more management, especially to operate multiple locations.

...Currently, energy costs in North America are low, by global standards, and must be expected to rise in the future. This prospect represents the biggest challenge to localized greenhouse production. Most of the energy consumed by a greenhouse is used to maintain optimum growing temperatures, so low-cost glazing materials that reduce heat transfer without reducing transmission of solar radiation are needed, as well as research to create varieties that grow well at varying temperatures. If supplementary lighting is used, it will require even more energy. LED lights continue to improve in efficiency, but they will not be widely used until the installation costs are substantially reduced. ...As we look to the future, a combination of produce suppliers is the most likely development, with the middle of the market supplied by large local greenhouses, the most affluent consumers paying a premium for ultra-local rooftop production, and the value-conscious customers continuing to purchase vegetables grown seasonally and shipped in from other regions.
greenhouses  hyperlocal  farming  green_roofs  urban  cities  local  highly_skilled 
april 2013 by jerryking
Rooftop Farm Aims to Make Greens Greener
24 June 2011 | Irish Times [Dublin] : 8. | Anonymous.

It uses a combination of energy management technology, solar panels and hydroponics technology to yield up to 30 times more produce than conventional field production, using 20 times less water during the growing process. Hydroponics involves growing plants in mineral-rich solutions without soil.

The company has signed up eight supermarket chains in the US, including three of the country’s largest, and has four farms under construction.

A one-acre farm costs about $2 million (€1.4 million) to build and would generate $1 million to $1.5 million in annual revenue, providing attractive profit margins given the reduction in shipping costs for the supermarkets, the company said.

“Our plan is to achieve $100 million in revenues by the end of 2015 and $1 billion by the end of 2020,” said chief executive Paul Lightfoot.

Among the investors in Brightfarms are the founders of US solar power giant SunEdison, Brian Robertson and Jigar Shah, and San Francisco-based tech investor and entrepreneur Ali Partovi.
greenhouses  green_roofs 
april 2013 by jerryking
Rooftop Farming With Greenhouses
Nov 2011 | American Vegetable Grower pg 41 |Rick Snyder. Rick.
greenhouses  farming  agriculture  green_roofs  cities 
april 2013 by jerryking
EXCLUSIVE - details on Lufa Farms energy-efficiency rooftop greenhouse design and expansion plans for North American cities | Energy Edge
07 August 2012

With energy accounting for as much as 40 per cent of the operating costs of many greenhouse operations, small and steady improvements on this front can move the needle in a big way on the bottom line.
green_roofs  greenhouses  Lufa_Farms  BrightFarms  costs 
march 2013 by jerryking
How to Build a Greener City -
SEPTEMBER 12, 2011 | WSJ | By MICHAEL TOTTY. .Bike lanes,
micro wind turbines, pneumatic garbage collection—and other ways to make
urban areas more environmentally friendly.
howto  cities  urban  urbanization  green  green_roofs 
september 2011 by jerryking
Water-saving in the north-east: Trees grow in Brooklyn
Nov 11, 2010 | The Economist. NYC has a serious sewer problem,
spilling more than 27 B gal. (102 B L) of untreated overflow into its
harbour each year.U.S cities rely on decrepit sys. that collect
storm-water run-off, industrial waste & human sewage in the same
pipes.Usually these pipes take waste water to treatment plants.But any
overflow is released into rivers & streams.Time, erosion &
increasingly erratic weather have made this a national issue. NYC
recently unveiled a plan to clean up its waterways.Instead of spending
billions on new tanks & pipes (i.e, “grey infrastructure”), which
take yrs. to build & never quite address the problem, NYC will
invest in “green infrastructure”, e.g. roofs covered with vegetation,
porous pavements & kerbside gardens.Instead of treating rainfall as
waste to be quickly whisked away, NYC will let it sink usefully into the
ground: helping to make the city greener, improve air quality, raise
property values, increase jobs & lower water & energy costs,
green_roofs  water  infrastructure  New_York_City  Brooklyn  wastewater-treatment  overflow  environment 
november 2010 by jerryking
Highly productive
April 24 2010 | Financial Times | By Sarah Murray
agriculture  cities  vegetables  gardening  urban  green_roofs  skyscrapers  farming 
april 2010 by jerryking
Hillbillies no longer calling the shots at Nathan Phillips Square
Feb. 21, 2010 | The Globe & Mail | Marcus Gee. Supports
the idea of the reinvesting in, and the revamping of, Nathan Phillips
Toronto  urban  renovations  green_roofs  public_spaces  Marcus_Gee  priorities  design  city_hall 
february 2010 by jerryking
The latest perk: the office veggie patch
May. 28, 2007 | The Globe and Mail | by PATRICK WHITE. Office
food gardens would be new to urban agriculture experts. "It's a
fantastic idea," said Michael Levenston, executive director of City
Farmer, a Canadian promoter of urban agriculture. "It's quite surprising
we don't see more of it."
farming  urban  gardening  workplaces  horticultural  green_roofs  rooftop_gardens 
february 2010 by jerryking

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