August 2012

South Africa finds answer to Eskom failure

As China expands its presence in Africa, a new wave of renewable energy companies are bringing off-grid innovation to the continent while Western competitors stand around and watch.

JinkoSolar, a Chinese solar module manufacturer has declared that it is supplying South Africa’s first  utility scale, off-grid photovoltaic solar system. The 1 MW plant will supply electricity to a chrome mine in the Limpopo province, in the north east of the country.

Oil-replacement photovoltaic solutions are continuing to emerge as a fully-proven power source in mission-critical situations.

This installation will sharply reduce the daytime diesel usage at the mine in the northernmost South African province, an area in which utility company Eskom is active, but repeatedly letting its customers down, allegedly through a mixture of corruption and poor management in the opinion of some. Reports suggest that the State-owned utility will shortly seek yearly price increases of between 14.6% and 19% – well over the rate of inflation.

Installation in the Limpopo mine will be designed and constructed by Solea Renewables and will employ 4,170 JinkoSolar modules. The plant is likely to be completed in October of this year.

Mhlanzi, the Director of Solea Renewables, stated that, “Mines and other consumers face power supply constraints due to capacity challenges at Eskom. The delivery of our PV plant will not only benefit (the chrome mine), but in turn help reduce the ever increasing energy demand Eskom faces.”

JinkoSolar, indicated in announcing the supply deal, that it has “great expectations” for the country. According to, Kangping Chen, Chief Executive Officer of JinkoSolar, “The region’s booming population, strong economic growth and abundant sunlight represent an exciting opportunity for solar and for JinkoSolar.”

As well as ordering a clean-up of Eskom management criminality, South Africa has taken a number of steps in recent months to drive the growth of cleaner energy in the country. In August, the US Export-Import bank signed a declaration of intent (DOI) with the Industrial Development Corporation of South Africa which will see the Ex-Im bank provide financing up to US$2 billion worth of US technologies, products and services to South Africa’s energy sector, with a focus on clean-energy development. This is expected to lead to bribery by US energy companies, and  further corruption during the tendering process

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Mobile

As hurricane brews, how to stay connected

Anyone living off the grid develops much better-than-average skills at surviving during power outages and natural disasters. Here are a few words of advice on battery maintenance and staying connected that may be useful to those in Tampa or New Orleans over the next few hours or days  –

After Hurricane Katrina, hundreds of millions of dollars were spent on safety and security initiatives to ensure cell service is available as long as the cell towers are still standing, so an empty battery will likely be the first challenge to keeping in touch and keeping informed.

Battery tech and capacity has failed to  improve or even kept pace with modern electronic technology  and the problem is particularly acute with the latest smart devices . And everyone is carrying more of these devices, which means more batteries. Smart devices do 20 times more than cellphones used to, but they also draw 20 times more power.

The result is a much shorter overall battery life per charge due largely to all of the extra stuff that smartphones and iPhones have built into them. Regardless of which smartphone you have, when the power is out, you are going to want to make its charge last as long as you can. There are a number of ways that you can accomplish this with a little care and planning.

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Make money off-grid – ways to pay, part 2

Cam and Michelle Mather run a publishing business whilst living off-grid north of Kingston, Ontario.

They founded Aztext Press (https://www.aztext.com/) in 2003. Cam, already a working in publishing, was disappointed to find a lack of books providing information about living off-the-grid with renewable energy. At about the same time he was introduced to Bill Kemp, an expert in small to mid scale renewables, and from this partnership “The Renewable Energy Handbook for Homeowners”  was born.

Written by Bill and published by Cam it has  been updated and republished. In the years since, Aztext Press has published 6 more books all focused on issues around living off-grid. Now they have taken this further by writing books as well. One of which, ‘Little House Off The Grid’, details their journey to self sufficiency.

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Community

Huge off-grid community

Ralph and Mary Johnson (pictured) live in Three Rivers Recreation Area, a 4,000-acre development near Lake Billy Chinook that relies on solar power for electricity.

The  development in central Oregon now includes 625 properties on 4,000 acres in a gated community where everyone is off the grid. Some of the homes sell for several million dollars, and include all of the amenities of modern life, including air conditioning. Others are little more than shacks bought for a few thousand.

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Community

Whole house vacuum aka Bobbage

PB is such a tinkerer, his ability to take nothing but scraps, often discarded items and make extraordinary and useful things is one of the biggest reasons we have been able to live off-grid while spending very little money, I think of him as my personal MacGuyver. He had been talking about making a whole house vacuum for quite some time now. Normally I really like PB’s inventions, but honestly I wasn’t on board for this one, don’t ask me why, I have no real reason except that I just couldn’t see how it would be better than just running a vac in the sky castle like normal, or could it be the fact that I hate vacuuming? LOL…

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Solar panels for sunless setting

A hunting lodge in Maine with two small solar panels, some old used car batteries,a quarter mile of wire and careful management. An old-timer explains how he does it in this video.

The old batteries are important – recycled from the owners car once he buys a new one. The Deep cycle batteries which we are told are the right product for this environment, in reality do not hold a charge over the winter when not in use.

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Land

Rich village turns against bankrupt couple in local field

The village of Dedham is considered one of the most desirable in South-East England. A four bedroom home with garden sells for £750,000 ($1.2m). It lies in the heart of Dedham Vale, an area designated as being of Outstanding Natural Beauty, and immortalised in paintings by John Constable RA, one of Britain’s best known artists.
When Asa and Gwen Pryke ran a successful business from home there, they were accepted as outstanding members of the local community. But since their business closed due to the financial crash they have become outcasts.
The couple were forced to sell up after their bank refused them a loan to finance a large order, so they decided to move themselves and their school-age children into a trio of caravans in a field owned by Gwen’s family. Part of the reason for the high property values in the area is the wealth of local schools with first rate academic records.

Neither their neighbours nor the local council were the least bit interested in their plight, and they were quickly told to move on as if they were squatters or travellers instead of locals who were down on their luck.

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Swiss Army charger

The makers of the ubiquitous Swiss Army knife have already branched out into watches, camping gear and even a motorised bike – now Wenger have extended their brand to launch a portable solar charger.

There are three models – the smallest sells for $125+delivery on Amazon, and the heavy duty pro version has three times the life and retails for $275. There are so many cheap and awful portable solar products on the market, most made in China.

So although we have not tested this one, the brand is strong and it is good to know that there is probably a quality product out there. Please let us know if you try it. It would be great if the battery is exchangeable, both so you could charge two in the field and also because the battery life is much shorter than the panel life.

The mid-range version features: weight: 17.5 oz. with battery, 4 photovoltaic solar panels, mounted on flexible water resistant fabric. folded: 11.6-Inch x 6.7-Inch x 1.2-Inch unfolded: 17.7-Inch x 11.6-Inch x .2-Inch
4.5 w power, 5v Micro USB output, 5000 mAh battery included, charging time around 7 hours
charges, smartphone, mp3, gps systems, includes USB cord & 5 adapters that connects many portable devices, LED light compartment for optional LED light # 44005, strap attaching points to secure charger to most anything.
water resistant, rear battery and adapter storage pocket, compact design, foldable, LED light compartment for optional LED light # 44005
approximately charging time of included battery: 7 hours, recharges smartphone in approximately 2 hours. Charging times are made with solar charger positioned perpendicularly to sunrays in full sunlight coverage.

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Mobile

Factory built autonomous home

IT looks like somebody in the construction industry has been listening to all this talk about off-grid homes. At last.

Quest is a 400-square-foot, off-grid capable, factory-built alternative home that its creator says is versatile enough for a variety of applications, including instant housing, affordable housing, resort units, temporary housing, and accessory dwelling units. It is on a tour of Californian cities as its makers try to drum up sales for the home, which is slow gaining market share because of its high price.

But perhaps what Quest is best suited for is to provide affordable housing for elderly care/retirees, as the U.S. faces the largest upcoming demographic of seniors in its history, many of who may not have income, social security, a 401K, or pensions, the company says.

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Solar Charge Controllers

If you have a simple off-grid setup with just one panel or even a few solar panels and several batteries, the other vital ingredient is a charge controller that regulates the power going from the panel to the battery and shuts off power input when the batteries are fully charged.

This makes the process of running your own power station almost maintenance free.

When you are starting up its best to buy a medium-priced controller so that you can add a few panels and batteries to the mix before having to upgrade. The HQRP 20A Solar Panel Battery Charge Controller / Regulator 12V / 24V 20 Amp 300W with PWM Type of Charging retails at under $50 on Amazon.

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Yurtshire goes for gold

Yorkshire in the UK has already “won” four Olympic gold medals as sportsmen and women from the Northern county have taken the medals as part of team GB.

Now Yorkshire is vying to be known as the centre of Yurt holidays, as a former surveyor who set up a luxury camping business after being made redundant, opens a third site near the market town of Ripon.

Tom Sterne launched his third sustainable ‘glamping’ center with three yurts overlooking a small lake.

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