Posts Tagged "energy efficiency"

Short cycling? Problem solved :)
by WRETHAOFFGRID on JUNE 13, 2014 - 0 Comments in OFF-GRID 101, WRETHA

1x1placeholderShort cycling, it makes me think of riding a bike a very small distance, or someone riding a really short bike…. actually it’s when a motor or compressor runs for a short period of time and is off for a short period of time. This will shorten the life of said motor or compressor.

We have had our current/new freezer to fridge conversion for a couple of months now, as the weather began warming up, I noticed the box ran more often than I thought it should, so I really started paying attention to the cycle. I didn’t officially time anything, but I estimated it was coming on for only a few minutes at a time every 5-10 minutes, that was definitely wrong. Of course this was during 100 degree days, it was also happening that way whether I opened the lid or not. (more…)

Freezer to fridge conversion
by WRETHAOFFGRID on OCTOBER 3, 2012 - 28 Comments in FOOD, OFF-GRID 101, WRETHA

Freezer-fridge conversion

Living off grid, I get questions from time to time, mainly about how we live, some even think we must live in a cave and eat dirt and wear skins…  I said I live off grid, but we don’t live that primitively! :) I do enjoy some of the modern conveniences of life, including having a place to keep perishable foods, aka a refrigerator.

When we first moved off grid, in Dec ’07, we brought with us a small, dorm sized fridge, but honestly we didn’t use it much, only plugging it up on the occasions when I brought home a gallon of milk or a pound of ground beef, once the perishable food was gone, we unplugged the fridge. What I quickly found out was the standard type of fridge used up a LOT of power and they tend to be very inefficient. (more…)

60% of energy lost in the power grid
by ALEXBENADY on APRIL 11, 2010 - 2 Comments in ENERGY

Tim Green by name...

The current system of generating electricity centrally and distributing it through the grid wastes as much as sixty per cent of energy -and it ain’t about to get any better, a leading UK academic has told Off-Grid.
Tim Green, Professor of Power Engineering at Imperial College London told us  that efficiency losses in power generation are the biggest issue facing the power industry today.
He estimated that energy losses in the power grid during generation of electricity are between 45 per cent and 55 per cent, depending on the technology used. The transmission system run by National Grid which does the bulk shipping of electricity in the UK, loses a further two or three per cent. Local distribution networks run by big power companies have losses of between five and seven per cent.
Senators back mini-nuke
by TECHSTAR on NOVEMBER 22, 2009 - 3 Comments in ENERGY
Murkowski: nukes not minks

Murkowski: nukes not minks

WASHINGTON, Nov. 20 — The Senate Energy and Natural Resources Committee issued the following news release:
Sens. Jeff Bingaman (D-NM), Lisa Murkowski (R-AK) and Mark Udall (D-CO) today introduced legislation to direct the Department of Energy to develop innovative, low-cost nuclear reactors. The Nuclear Power 2021 Act (S.2812) proposes a program to design and certify small modular reactors (< 300 megawatts) which can be built and operated in combination with similar reactors at a single site. (more…)

Top govt advisor attacks Big Power
by ALEXBENADY on OCTOBER 30, 2009 - 1 Comment in COMMUNITY, OFF-GRID 101
Simpson: Local hero

Simpson: Local hero

The UK is in the grips of a power cartel, says an insider from the governing UK Labour Party.

That cartel actively hinders the fight against global warming by lobbying for its own narrow commercial interests at the cost of local democracy and the future health of the planet.   It’s an argument that off-gridders and anti-capitalist campaigners will be familiar with. It’s not really what you expect to hear from an advisor to Her Majesty’s Government. Yet it is precisely the belief of Alan Simpson, who occupies a place close to the heart of political power in Britain as  energy advisor to the Secretary of Energy and Climate Change, Ed Miliband and Member of Parliament for Nottingham South. (more…)

Eco-McMansion in Aspen
by TECHSTAR on SEPTEMBER 7, 2009 - 0 Comments in LAND, OFF-GRID 101

new york lode
Nice place but pricey
A multimillion-dollar house on the back of Aspen Mountain went on the market this summer.  Is there such a thing as an Eco  McMansion?

The 3,600 square feet house on the New York Lode patented mining claim is completely off the grid, with a geothermal system providing hot water for heating and domestic use, and a five-kilowatt solar photovoltaic system providing the electricity. (more…)

UK Off-Grid festival in August
by JO HOOPER on APRIL 22, 2009 - 5 Comments in COMMUNITY, OFF-GRID 101

Family-friendly festival
This August sees the first Off-Grid Sunrise Festival  somewhere in Somerset (location to be revealed).  The three night event will be entirely powered by renewable energy. This new camp is a deep exploration of community living, creativity and consciousness, with hands-on activities, talks, workshops, performance, music, art and celebration.

Its a spin-off from the annual Sunrise Celebration which is held in Somerset May 28th-30th this year. Off-Grid Editor Nick Rosen will be speaking at 3pm on May 29th, and again in the evening, in the Big Yurt.

The Off-Grid event in August will be participatory and family focused, exploring the emergent culture of environmental awareness and the ways in which everyone can create a sustainable future together.  “We welcome this new addition to the annual Off-Grid Calendar” said Nick Rosen. Times are changing and knowledge is growing of the human impact on the natural world and upon each other. Off-grid will explore humanities potential to improve the lives of everyone on this planet.

“Creating a festival is like building and servicing a small town,” said Dan Hurring from Sunrise. “In the process we can explore solutions that can be applied in our everyday lives and throughout the world. For this event we will be moving away from using bio diesel generators, and working on micro generation of power from solar, wind, cycle and possibly hydro power.”

The Off-Grid festival is about creating a space for empowerment, where festival goers will have the opportunity to gain knowledge and experience on the steps that need to be taken to increase energy efficiency. There will be lots of practical information, from how to make a boiler use less fuel to installing a wind generator. Whether the dream is an inner city vegetable patch or living on the land, Off Grid will be a showcase of what is possible and available to everyone, no matter what their lifestyles.

As a family focused event Off Grid will have loads of activities for children, with a kids’ village and fun workshops especially tailored for them on how they can help their families help the environment.

So bring the family to eat from nature, sit in ceremony, design the future, walk on hot coals and move beyond your perceived limits.

Off-Grid will be powered by clean, renewable energy, with site wide organic food and drink, compostable packaging, plates and cutlery, and numerous other initiatives making this the Greenest event of the year. Sunrise Off Grid is run by a Community Interest Company, CIC’s invest their profits back into the community, building a world beyond monetary profit.

Tickets: Adults £75 in advance/Kids £25 Info: 0845 0094463 –

Find the energy thief in your home

Wall Wart
Wall Wart

OK, you are sitting in your home, you have replaced all of your incandescent light bulbs with more energy efficient bulbs, you have added more insulation to your home, you have double pane windows, you have caulked up every crack and crevice, you lower the thermostat in the winter and raise it in the summer, you have purchased energy efficient appliances, so now, is there anything else you can do to use less energy and save money? Yes there is!


London may move off national grid
by LYDIA POLZER on NOVEMBER 19, 2008 - 0 Comments in ENERGY, OFF-GRID 101

Mayor Johnson – eco geek
Building Services Journal reports lobby group London First saying decentralised energy generation could reduce the UK capital’s carbon emissions by 3.5 million tonnes pa.

In its latest report, researched by respected structural engineers Buro Happold, London First called for a collaboration between central government, the Mayor of London and his agencies, energy companies, developers and boroughs towards decentralising a quarter of London’s energy supplies.

Locally placed combined heat and power plants linked to housing estates, as well as surrounding local amenities and hospitals would, the report claims, make for higher levels of energy efficiency as opposed to centralised power. (more…)

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