Maximum kW?

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Re: Maximum kW?

Postby Whitespeed » Wed Jul 30, 2014 11:55 pm

Unfortunately while fire risk here is very real here, the tree hugging council like to preserve as much forest as possible. Native vegetation rules will only allow clearing of trees to 20 meters from an occupied dwelling.

The shed the off grid solar is on is not an occupied dwelling, so the council only allow clearing to whatever the minimum that the CFA report makes them (A necessity for a permit here) in my case this means a few trees within 5 meters, and quite a few within 10.

I have all panels on the southern-most end of the shed to minimise shading, this is how we still maintain clear sky between 10.30 and 3 in winter when the sun is low. For 6 months of the year we still have more power than we can use :)
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Re: Maximum kW?

Postby Cherokee Solar » Thu Jul 31, 2014 7:51 am

Whitespeed wrote:Native vegetation rules will only allow clearing of trees to 20 meters from an occupied dwelling.


Yes, that is correct in Victoria. Sheds, water tanks, and general farm infrastructure are not considered part of the 10/30 rule. However, there are legal exceptions relating to the collection of firewood from your own property for personal use. The council may not have decided to inform you about that exception.

I once had a council employee explain to me that it would be preferable if I trucked in firewood for personal use from the red gum and box / iron bark forests several hundred kilometres further north than here. In terms of environmental concern, that was one of the weirdest examples of not in my backyard syndrome. The trees here are very fast growing, whereas a red gum may be several hundred years old. That is why the timber is more dense.
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Re: Maximum kW?

Postby offgridQLD » Thu Jul 31, 2014 8:30 am

Ok, I see your issue now ;)

Yikes 30M isn't much and 5-10m from your other structures :shock: wouldn't want a big one to go over in a storm.

I keep lopping the stumps back again out the front when they start blocking the view but with the established root system and good sun-water they grow so fast. Good small sustainable supply of fire wood. I even notice next door where they just built new home and cleared to meet the fire rules all the stumps have a 10 - 15 foot tree growing out of them already :lol: .

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Re: Maximum kW?

Postby Whitespeed » Thu Jul 31, 2014 9:06 am

As I had posted earlier I have a perfect spot for a ground mount behind the house. Problem is that at $10k for the job by the time I get in a pro to do it, I just can't justify the cost :(
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Re: Maximum kW?

Postby bpratt » Thu Jul 31, 2014 10:34 am

offgridQLD wrote:I even notice next door where they just built new home and cleared to meet the fire rules all the stumps have a 10 - 15 foot tree growing out of them already :lol: .


And they are the worst type of tree you can have, one that has grown out of where the old one was cut off at.

There's no strength there, so when they grow up taller, they have that weak area where they'll fall over in a wind storm, and that makes them really dangerous.
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Re: Maximum kW?

Postby offgridQLD » Thu Jul 31, 2014 11:26 am

And they are the worst type of tree you can have, one that has grown out of where the old one was cut off at. There's no strength there, so when they grow up taller, they have that weak area where they'll fall over in a wind storm, and that makes them really dangerous.


They are a good 50m from my house on the side of the hill so unless they grew 80m tall they are no threat to anyone. I cut them when the trunk gets to a good wood heater width.

Although there is a cleared area to take advantage of view. I like to keep the old stump and root system alive and working as they act like reo bar in the soil. landslides are an issue in my area when we get silly rain.

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Re: Maximum kW?

Postby davidg » Sat Aug 02, 2014 4:07 pm

Whitespeed wrote:As I had posted earlier I have a perfect spot for a ground mount behind the house. Problem is that at $10k for the job by the time I get in a pro to do it, I just can't justify the cost :(

$10k for ground mount system :shock: for how many kw's of mounting system, and did it included the modules for the price :?: . Also was it a single pole mounting system or several of them, which are horribly overpriced anyway. There are other options, which are a bit more than roof mounting systems, but they work super well and are pretty easy too install. ;)
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Re: Maximum kW?

Postby Whitespeed » Sat Aug 02, 2014 9:53 pm

A good part of what makes my situation difficult is that it would have to be done from scratch. At this point my system is not hard wired to the house.

My system is independent of the house and just plugs into the hot water, RC A/C and runs the small engineering workshop that it is attached to. It also provides the essentials (fridge, TV, jug a few lights) during the odd power outage.

Plus the odd BBQ lunch and outside lighting :D

This means the pro would have to not only construct mounting for the 4.5 kw of panels, but as it is on the other side of the house to the shed that they are mounted on, also provide housing for the rest of the gear that now lives within the shed. (CC, inverter, batts)

This would then need to be wired to the house via 30m of underground AC. We already have an external dedicated circuit to connect to.

Not unreasonably, he was not interested in reusing any components of the system except the inverter and CC, stating he needs to be responsible for the install so would need to start with new components.
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Re: Maximum kW?

Postby davidg » Sat Aug 02, 2014 11:21 pm

Whitespeed wrote:My system is independent of the house and just plugs into the hot water, RC A/C and runs the small engineering workshop that it is attached to. It also provides the essentials (fridge, TV, jug a few lights) during the odd power outage. Plus the odd BBQ lunch and outside lighting :D

Where are you?

It would help if you added your location into your profile so it showed up on the right-hand side. >>>>>>
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Re: Maximum kW?

Postby Whitespeed » Sun Aug 03, 2014 12:04 am

Done. >>>>>>

It is also hard to justify spending too much to gain 30% or so per day, especially as we don't rely on this to live.
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