Wednesday, August 31, 2011

Integrating Solar Power Into Existing Home


The first problem we have when we start generating solar power say with 1 panel, a controller and a 95 ah battery is to deploy the power for use.

In a motor home or caravan it is a simple matter of connecting the battery to a 12 volt light bulb or bulbs and you have light. You could also run the system in a garage and wire up the garage for 12 volt lighting.

What if we want to use the power we generate in our own home with our existing 240 volt wiring. The only choice is to set up a grid connect system. This is where the power we produce is fed to the grid for which we are paid by our electricity supplier and we are charged for the power we use. Usually there will be a difference between what we are paid and what we are charged.

Seems simple but there is the administrative red tape that we have to go through. We will need permission from our line company to connect to their grid and a contract with our eectricity supplier to pay us. These are not problems in themselves as the regulations do not allow them to refuse our request. However.......

First we need a grid connect inverter. This is not just any inverter it is an inverter that will match the phase of the power you produce to that of the grid. It will also shut the power off if the grid is down so that worlers working on the lines don't get electrocuted. Of course it is expensive. Expect to spend upwards of $5000 depending on the power required. You will also need an export meter that is supplied by the supply company for which you will be charged.

Oh-Oh but lets say you decide that you want to do it anyway well your simple setup above will not suffice. Lets say you expand your setup to producing 1 kilowatt a day which is about 100 watt of panels. Say you are paid 20 cents per kilowatt (very generous) your income is 20 cents a day or $6 a month. Remember above that you will be charged for the export meter? Well lets say it is $20 a month! You are now paying the electricity supplier for the priviledge of selling them power!

What a dilema and a catch 22 situation. They should just allow us to connect into the grid and let the meter flow backwards. This however is illegal and it is also dangerous.

Never fear we have a solution that will solve this problem. The ACDC RG1 power regulator. This device allows you to connect your solar batteries to a household circuit be it the hot water system, power or lights. You use up the power you produced stored in your batteries and when the batteries are depleted the system switches over to the mains. When he batteries are fully charged again the system will switch back to the batteries.

This way you get full credit for the power you produce at the price your supply company charges you. You connect the system directly to you power circuit ( by a registered electrician ) using your existing house wiring.

For this system to work you will have to invest in a inverter to convert DC power in the batteries to 230 volt ac. The system is availiable in 24volt and 12 volt configuration. Generally inverters above 2000 watts are 24 volts. Components and cables for 12 volt systems are expensive for higher output because of higher current. Existing models of the DCAC RG1 are priced at $795.

Starting A Solar Power System


OK. You have heard all about solar power and alternative energy. You want to get started but don't know how or rather how not to do the wrong thing.
The first problem is cost - solar panels, solar controllers, batteries.

Solar Panels - monocrystalline, multi crystalline, amorphous. Panels vary from 1 watt to 180 watt cost from $10 to $2000

Solar Controllers - 12 volt to 48 volts 3 watts to 60 watts. Cost from $100 to $1000

Batteries - Flooded cells, Agm or Gel. Cost varies from $50 to $25,000

There are many uses for solar power some are the garden variety and small panels sold as top up's for batteries. Here I will concentrate on solar power that you can use in your motor homes or homes for lighting and power.

The most cost effective system

Panels - 40 watt amorphous is the most cost effective from a cost per watt basis. $395
Amorphous panels are resistant to shadows and work well in low light. These panels also easily fit into a larger grid system when you want to increase your power generation. Produces 240 watt a day.

Controllers - The Leonics 1206 is the best to use for a small maximum 2 panel system. $195

Batteries - Your standard car batteries are not suitable for solar power, however even a small 85 ah deep cycle battery can set you back $350. The good news is that a reconditioned 85 ah deep cycle battery can be purchased from the battery clinic for as little as $95 and it will work just as good.

OK there you have it a small solar system that you can use in the mobile home a batch or even in the home. Enough power is generated a day to light up 6 X 20 watt bulbs for 2 hours.
















This solar streetlight is powered from 1 panel and is enough to light up a 20 watt bulb for 10 hours a day. The battery has enough storage for 3 days.

See www.thebatteryclinic.co.nz for more information

This is a quick start to producing solar power and it is a system that can be expanded easily.

Monday, August 29, 2011

Future of Hybrids - The hybrid battery

If we can get a battery that last from between 16 to 20 years, the hybrid vehicle will be widely acceptance by the motoring public.

There are one billion cars in the world today and with many of the worlds most populated countries fast embracing vehicle ownership this number can only increase at a faster rate. However of this total only about 4 million are hybrids.

Most people know that hybrids uses less than half the fuel compared to a standard vehicle of similar size. So why is it the public have not taken to this new technology?

Two main perceptions holding this technology back are.
1) Hybrids are expensive :  In Australia a standard Toyota Camry sells for A$ 28,988 and the Toyota Camry hybrid sells for A$ 36,990. It is about 27.6% more expensive.

2) When they break down hybrids are expensive to fix : The hybrid battery used in the vehicle is expected to last 7 to 10 years after which it is expected to be replaced which can cost about $4000. In anybody's book this is an expensive fix and it negates all the fuel savings made.

Should hybrids be more expensive to produce? Mass production could close the gap but even so, fuel savings will offset the higher cost of purchase. The main issue in getting hybrid vehicles accepted into the mainstream is the battery. What we need is a battery that can last the life of the vehicle. With the invention of the Power Jockey this is now a reality.



Every time a load is placed on the battery, it experience a dip in voltage which recovers after the engine kicks in. This dip in voltage gets deeper as the battery ages until the point is reached when a cell collapses and the battery fails. From the graph above we can see that this dip in voltage is averted when the Power Jockey is installed. It stands to reason that if the Power Jockey was installed from new, the battery can last more than the 7 to 10 years currently.

We are only installing the Power Jockey in vehicles where the battery has already failed which we have reconditioned and repaired. We have had batteries lasting more than 2.5 years after reconditioning and with the Power Jockey we are confident that we can make the original battery last the life of the vehicle. Extending battery life from 8 years to 16 years would be the biggest factor in overcoming the perception that the hybrid vehicles are expensive to fix when they break down.

Monday, August 15, 2011

Solar Water Feature


Most water feature used in landscape gardens uses 240 volt Ac converted to 12 volt Ac or DC. The mordern lanscape design should incorporate solar power to power Dc water pumps . Once installed it is completely self contained and the cost of running is zilch - nana - ZERO.
I have installed such a system in my garden. The first problem I encountered was that I could not get a Dc pump from the water feature supplier. Theirs was 12 volt or 24 volt AC and cost $150. I managed to obtained a similar capacity DC pump for $40 on the Internet. This worked perfectly on my water feature.
As I only needed the water feature to work in the day solar power was perfect as I had power for the water feature when the sun shorn.
Full setup and details of this water feature design below 

Sunday, August 7, 2011

Battery Recycling In New Zealand

There is a war brewing in New Zealand about battery recycling and waste battery exports to Korea and the Phillipines.

First the background : Exide's battery recycling factory is the only one in New Zealand. Up until about 6 years ago New Zealand did not allow it's waste batteries to be exported. Exide had a monopoly and like any monopoly it took advantage. Scrap battery prices were set so low that it was not worth collecting them. Exide however made huge profits. However all this ended when exports were allowed and Exide had to pay market price for their raw materials.

Still this was not too much of a problem because Exide NZ was able to source batteries from it's Australian company Exide Australia. This situation also ended last year as Australian battery recyclers succeeded in stopping battery exports to New Zealand.

Today Exide recycling plant in New Zealand closed it's doors, citing lack of scrap batteries.... PERMANENTLY?

Voxy.co.nz

Greenpeace is calling on the government to come clean about exports of toxic waste from New Zealand to the Phillipines and South Korea.
OIA Documents passed to Greenpeace reveal that New Zealand has exported at least 50,000 tonnes of toxic battery waste to the Phillipines and South Korea since the end of 2008.
Greenpeace believes that serious question marks exist about whether these exports are legal under both the international Basel Treaty and Waigani Treaty, which make developed countries responsible for dealing with their own toxic waste rather than exporting it to countries where environmental and safety standards are lower
Greenpeace Executive Director Bunny McDiarmid said, "These revelations could threaten New Zealand's image both as a clean green country and a responsible member of the international community".
"If these deals are above board then why is the government withholding details of where in the Phillipines and South Korea our toxic waste is being processed?"
Greenpeace is calling on the government to:
? Release the names of the waste facilities in both the Philippines and South Korea where New Zealand's toxic waste is being processed and prove that their safety and environmental records were properly assessed before exports were approved.
? Put on hold any more exports of toxic waste until a full review of New Zealand's toxic waste management policy has been completed.
? Encourage development of a new state of the art recycling facility for New Zealand
Ms McDiarmid continued, "New Zealand has the moral responsibility to deal with its own toxic waste, not dump it on developing countries".
"The reality is we have the skills and technology to do this work cleanly and responsibly at home. The government should see this as an opportunity - to create new green jobs and investment."
"What New Zealand needs is a new state of the art recycling facility and one that isn't right smack bang next to people's homes and schools."

Stuff.co.nz

US execs making Exide ruling

TRACY WATKINS AND SHABNAM DASTGHEIB
Last updated 05:00 05/08/2011




Exide's environmental record has been attacked in Parliament as the battery recycling plant faces possible closure as early as today.
Sources close to the American-based company said a decision would be made in the United States early this morning on the Petone plant's future and that it could close its doors today because of a lack of work. It is not clear whether the closure will be temporary or permanent.
Exide workers told The Dominion Post last night that they had been instructed not to talk to the media. One said that message had been passed down "by management and the Americans".
Lawyers for Exide say it is being put out of business by the export of tens of thousands of used lead acid batteries to the Philippines and South Korea and that the shipments breach New Zealand's international obligations for the treatment of hazardous waste.
But Labour MP Trevor Mallard told Parliament it might be preferable to export the batteries than to keep open a factory with Exide's history.
That history included "explosions, causing damage to workers both by lead and the explosions, leakage at the boundary going into neighbours' [properties], a history of sickness of workers from lead poisoning [and] a history of dumping sludge in the Wainuiomata tip, then going into the Wainuiomata Stream", he said.
"There is no way that such a plant would be allowed to be located next to a residential area in most first-world countries, and it shouldn't be allowed here."
After questions in Parliament from the Greens yesterday, Mr Mallard also accused Exide of employing a "high-priced law firm" to get the Green movement onside in an effort to "save its bacon".
Exide has hired top public policy law firm ChenPalmer, which has lobbied the Government over its obligations under the Basel Convention, which requires countries to deal with their hazardous waste on-shore where possible.
Julie Wake and husband Steve have been living almost next door to the plant for 13 years. Mrs Wake said that if it didn't close, they would be forced to move.
"This is our first home together and we have invested our emotions into it, but we want to have children soon. This is not a place to bring up kids, they are more vulnerable to health issues than we are."
Mrs Wake said the community had actively campaigned for Exide to clean up its act for many years but the company had taken little on board.
Long-time campaigner Richard Whiteside said it was a no-brainer that the factory was endangering the health of the people of Lower Hutt and should be moved. "Recycling is a good thing, but why should we pay with our health?



"Even the Chinese are enforcing a buffer zone to residential houses of 500 metres. I believe this plant is the closest in the world to residential houses at just 50 metres and is only 250 metres from a children's playground and beach."
Environment Minister Nick Smith said he had begun a formal review of policy on battery shipments.
"My preference is for these batteries to be recycled in New Zealand, although I will need to be satisfied about the environmental standards, given the quite chequered record of the Exide Technologies plant in Petone."
He said in Parliament yesterday: "There have been substantive problems with ... resource consents in Petone and, given the toxic nature of lead, I think we would want to be strongly reassured of the plant's environmental performance."


Dominion Post

Exide lays environmental complaint

SHABNAM DASTGHEIB AND TRACY WATKINS
Battery recycler Exide, which has often been criticised for its environmental record, has lodged a complaint against the Government, citing environmental concerns.
Exide, which closed for at least several days yesterday, has told the Parliamentary Commissioner for the Environment that granting Government permits to export used lead-acid batteries breaches New Zealand's international obligations and is thus illegal.
Sources close to the factory said it may close for at least part of next week because of a lack of work caused by used batteries being shipped overseas for recycling.
It is New Zealand's only plant for dealing with used lead-acid batteries.
In a letter to Parliamentary Commissioner for the Environment Jan Wright, Exide Technologies Australasian managing director John Cowpe said the export of the batteries was unlawful, "but more fundamentally is likely to result in significant adverse effects on the environment".
He said that, if New Zealand became dependent on other countries to dispose of hazardous waste and that export market market dried up, it would be left with uncollected waste and no facility to deal with it.
Wellington Scrap Metals director Brett Hall said he had tried to sell batteries to Exide in the past and it had refused to buy them directly from him.
"Every time we try and sell to them, they come back to us and say, `No, go talk to Macaulay Metals – who's quite a big competitor down here – 'and deal with them because they are the only ones we like to deal with down here'.
"The reason we export is we can get more for it. It's a free market, you can sell for the highest price."
Yesterday, Exide said: "Since 2009, there has been a marked reduction in the fugitive emissions of lead recorded at the boundary monitors of the recycling facility site. We believe these improvements will continue due to the enhancements made at our facility.
"We are proud of our 40 dedicated and hard-working employees at our facility and the work that is being performed to ensure the proper treatment and disposal of used lead-acid batteries for all New Zealanders."
But Labour's Trevor Mallard, MP for Hutt South, said Exide did not have a good environmental record and should be closed permanently.
"They certainly are the worst polluters in the Wellington region in recent years and I'm not prepared to support an economic model that is based on a factory that has regularly in the last decade emitted poisonous lead emissions in to the neighbouring residential community."



Using a Restored and Reconditioned Battery

Reconditioned Batteries Are Good For The Environment



To make a standard battery we use plastics for the casing, lead for the plates and terminals, lead dioxide for the active material and sulphuric acid for the electrolyte. All these are saved if we recondition and reuse this same battery.

But if they only last 3 months .......
Our record is five years for an automotive battery and even longer for storage batteries. Prior to us coming on to the scene people used to buy used batteries from car wreckers and other battery reconditioners. these batteries are still sulphated an only for 2 weeks to 3 months which gives rise to the perception that reconditioned batteries only last 3 months.  A fully restored and reconditioned battery can last as long as a new battery. Our return rate is less than 1%.

But is it safe to use ?
Our desulphation process uses high frequency pulses to agitate the lead sulphate crystals  breaking it's hard molecular bonds.This changes it to soft sulphate and allow it to take place in the chemical reaction again. The result is that we get a "Restored Battery" that is as good as new and often last 2 - 3 years.  A restored battery is as good as a new battery.

Links

Cheap battery bank for an off grid power system.


Save our planet and save money at the same time

Reconditioned batteries are not only for people on a tight budget. They are safe to use, can last as long as a new battery, and is good for the environment. Think about how much energy and raw material have been saved by recucling and reusing a reconditioned battery.

[gwo-section id="Reconditioned batteries"][/gwo-section]

Low cost battery bank for an off grid power system

The heart of an off grid system are the batteries

The first thing that you want to get right when setting up an off grid system are the batteries. These is the most expensive part of the system and it is also the most vulnerable.

All batteries sulphate over time. Harderned sulphate molecules cannot take part in the energy exchange. In addition they also form a layer over the active material below insulating it from the acid. This is the main cause of loss capaciity in new batteries that sits on the shelf.

Our desulphation process and techniques soften up these sulpahte molecules so that they can take part in the energy exchange again. In doing so it also exposes the active material below which results in the huge increase of capacity.

A new 12 volt 200 ah gel or agm battery can cost up to $2500. We sell these for less than $500. A small 400 ah 6 X 2volt cells can cost up to $8000 we sell these for $1200. Restored and recondition batteries although about 1/10 the price will last just as long ie 5 to 15 years.

Looking at it another way. For the price of a new battery bank, if you use restored batteries instead, you could pay for the whole system. The better news is that we can continue to support and service these batteries to extend their useful life.

Before setting up a system talk to us about your requirements. getting the correct batteries and keeping the path towards expanding your system open is the beft way towards future proofing you considerale investment. (More)

Tonga should adopt a renewable energy policy

Below is a letter written to and published in Matangi Tonga Online by
Sefita Haouli.

Auckland, New Zealand

THE Pacific Energy Minister's Meeting in Nuku'alofa recently brought to light a number of angles on our energy needs as well as that of others around the Pacific.

Weaning us off petroleum will take some time and the replacement technology to make that possible will still be imported and not home-grown. However what is needed now is a new and home-grown attitude and actions to lessen our dependence on imported energy immediately.

A combination of wind and solar technology will enable most homes in Tonga today to have their lighting and non-heating appliances run independent of the grid - in fact the better wind generators can supply more than is needed by your average households and if allowed, will be able to contribute to the national grid right away. Some Asian countries now have switched from AC powered appliances to DC powered so that they can take advantage of the solar/wind/battery power supply which are home-owned and economic to run and maintain and renewable all at once.

Tonga can do that now and although the initial savings will be minimal but with every subsequent year the move away from petroleum and imported energy will pay dividends for individual families and collectively also for the country.

Our relatively flat terrain offers opportunities for the gradual introduction of electric or battery powered cars, vans and trucks - but the transition period should be implemented now so that
alongside our stated wish to wean us off imported energy, activity on the ground will show that we're willing to walk the talk.

If we make it a policy to phase in a gradual transition from non-renewable to renewable form of energy and actively supported by subsidies or similar, we will join other communities who've not only seen the need but are acting on it.

A good starting point will be to retro-fit all of our street lighting to go solar and follow the lead of some of our own village communities who've done this on their own. The energy savings alone
for Nuku'alofa street lighting will more than meet the technology swap costs in less than three years. Half or more of all government-owned vehicles should be electric over the next five years and what is now known as the golf-carts in Western countries should be the only taxis allowed in Nuku'alofa streets and that should help keep the place a little cleaner and safer than presently.

And now that national power generation is back in the hands of the tax-payer and still costing more than ever, individuals with wind and solar technology who can more than meet their own needs should
be able to contribute to the grid and earn some income along the way. Technology for that is now available and some far-sighted countries encourage this practice.

It's never too late to have the wisdom to do now what we will inevitably be forced to do sometime in the future. Had we done so earlier, Deputy PM, Dr Tangi's speech to the Pacific Energy's meeting would have been quite different in tone and content and his wish to see the region's energy units operate out of Nuku'alofa, a done deal.

Sefita A Hao'uli
sefita.haouli@gmail.com
27 April 2009

Monday, August 1, 2011

Net Oil Producers

Top World Oil Producers, Exporters, Consumers, and Importers, 2006
(millions of barrels per day)
 Producers1Total oilproduction Exporters2Net oilexports Consumers3Total oilconsumption Importers4Net oilimports
 1. Saudi Arabia10.72 1. Saudi Arabia8.65 1. United States20.59 1. United States12.22
 2. Russia9.67 2. Russia6.57 2. China7.27 2. Japan5.1
 3. United States8.37 3. Norway2.54 3. Japan5.22 3. China3.44
 4. Iran4.12 4. Iran2.52 4. Russia3.1 4. Germany2.48
 5. Mexico3.71 5. United Arab Emirates2.52 5. Germany2.63 5. South Korea2.15
 6. China3.84 6. Venezuela2.2 6. India2.53 6. France1.89
 7. Canada3.23 7. Kuwait2.15 7. Canada2.22 7. India1.69
 8. United Arab Emirates2.94 8. Nigeria2.15 8. Brazil2.12 8. Italy1.56
 9. Venezuela2.81 9. Algeria1.85 9. South Korea2.12 9. Spain1.56
10. Norway2.7910. Mexico1.6810. Saudi Arabia2.0710. Taiwan0.94
11. Kuwait2.6711. Libya1.5211. Mexico2.03
12. Nigeria2.4412. Iraq1.43 12. France 1.97
13. Brazil2.1613. Angola1.36 13. United Kingdom 1.82
14. Iraq2.0114. Kazakhstan1.11 14. Italy 1.71



38.25


33.03