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Ask RiotACT: Solar panels

By Perseverance - 6 July 2017 12

Ask RiotACT

Hey Rioters.

Can anyone out there give some advice in regards to solar quotes – especially if you have had a system installed in the last couple of years.

I have received a quote of $7900 (that’s after all the credits etc) for a 5.5 Kw system. Talesun panels and SMA inverter. $500 extra for a hybrid inverter if I want to go with a battery later.

Quoted savings are about $825 a year and $1400 with a battery (based on my last year’s bills).

Thank you in advance.

Mike.

What’s Your opinion?


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12 Responses to
Ask RiotACT: Solar panels
dungfungus 7:05 pm 13 Jul 17

dungfungus said :

AGL is increasing payments to their domestic solar generators from 1st July 2017 in NSW and Qld.
https://www.agl.com.au/about-agl/media-centre/article-list/2017/june/agl-increases-retailer-solar-feed-in-tariffs

ActewAGL meanwhile screw theirs.

To be fair, ActewAGL have increased their solar export tariff from 7.50c to 11.00 cents from the first of July 2017 which is a substantial increase. For some reason, they have not promulgated this by the usual media release.

dungfungus 2:57 pm 13 Jul 17

AGL is increasing payments to their domestic solar generators from 1st July 2017 in NSW and Qld.
https://www.agl.com.au/about-agl/media-centre/article-list/2017/june/agl-increases-retailer-solar-feed-in-tariffs

ActewAGL meanwhile screw theirs.

dungfungus 8:12 am 12 Jul 17

wildturkeycanoe said :

dungfungus said :

It sort of messes up the economics of getting home solar.

It certainly does. Now you can only expect to get quite minimal savings, certainly not make a big impact on your power bill. There are probably many other ways via which you can save more money than solar power now. This is just as regressive as the Liberal’s push for coal.

We wouldn’t have achieved the high standard of living that we enjoy now it we didn’t have coal. Unless we stop flirting with unreliable renewables and return to coal generated electricity that high standard of living, now accompanied by record levels of personal debt, will become a distant memory.

wildturkeycanoe 5:49 pm 11 Jul 17

dungfungus said :

It sort of messes up the economics of getting home solar.

It certainly does. Now you can only expect to get quite minimal savings, certainly not make a big impact on your power bill. There are probably many other ways via which you can save more money than solar power now. This is just as regressive as the Liberal’s push for coal.

dungfungus 12:50 pm 11 Jul 17

All about the 5kWh limit on inverters here. It is part of AS 4777. It actually came into force a while ago but a period of grace was given. It sort of messes up the economics of getting home solar.

http://www.parameters.com.au/pdfs/Big-changes-in-Rooftop-Solar.pdf

dungfungus 10:51 pm 07 Jul 17

bigred said :

I have been contemplating doing something significant but cannot make it work financially, ie cost of a decent system exceeds the benefits obtained over a ten year period. I think (hope?) the Tesla announcement in SA might lead to some local economies of scale benefits and would suggest taking a watch and see approach. If the money is burning a hole in your pocket, there is always some green stuff you can do to your home to reduce your footprint.

The proposed Tesla giant battery in SA is really a peaker. It will be able to supply power to 30,000 homes but only for 1 hour continuous. A lot of hyperbole in fact.

dungfungus 10:38 pm 07 Jul 17

bigred said :

I have been contemplating doing something significant but cannot make it work financially, ie cost of a decent system exceeds the benefits obtained over a ten year period. I think (hope?) the Tesla announcement in SA might lead to some local economies of scale benefits and would suggest taking a watch and see approach. If the money is burning a hole in your pocket, there is always some green stuff you can do to your home to reduce your footprint.

wildturkeycanoe said :

There is an important change I confirmed today, in the standards that govern grid connection of solar. A grid connected system can not have more than 5kW of inverter power. Even if there is a limit on export, or splitting the system to charge batteries from excess panels, the rules state the single phase meter panel will not be allowed to have more than 5kW of inverter connected anywhere. If you had a 5kW system, the rules effectively prohibit the connection of the new Yesla Powerwall2 because it too has an inbuilt inverter, thus adding to the total inverter capacity even though it isn’t adding to the exported power. This rule change completely undermines the purpose of solar, which is to save us money. The power companies have obviously seen that larger systems are reducing their profits and they no doubt had a word to the standards reviewers. This is a lick in the guts for customers trying to reduce power bills and to the movement towards green energy overall. I am definitely going to do my best to get completely freed from Actew’s shackles when the finances allow. They can’t charge me or dictate my system limitations if I haven’t got a connection, not yet anyway.
Oh, these new changes aren’t retrospective either, which seems a little convenient for the purpose of keeping the change from stirring a fuss in the media. Typical!

Yes, it doesn’t make sense because it would appear that Actew would prefer to buy solar power from the operators of the big farms in the ACT for about 0.50c a unit rather than steal it from their solar home consumers for 0.07 cents per unit.

To add insult to injury Actew are requiring new grid connectors to purchase a “energy monitor” which will cost about $500. While the plan isn’t retrospective, anyone who has to replace or upgrade an inverter will be required to comply so eventually all will be caught as some of the early model inverters are failing after about 5 years.

bigred 8:07 pm 07 Jul 17

I have been contemplating doing something significant but cannot make it work financially, ie cost of a decent system exceeds the benefits obtained over a ten year period. I think (hope?) the Tesla announcement in SA might lead to some local economies of scale benefits and would suggest taking a watch and see approach. If the money is burning a hole in your pocket, there is always some green stuff you can do to your home to reduce your footprint.

wildturkeycanoe 5:57 pm 07 Jul 17

There is an important change I confirmed today, in the standards that govern grid connection of solar. A grid connected system can not have more than 5kW of inverter power. Even if there is a limit on export, or splitting the system to charge batteries from excess panels, the rules state the single phase meter panel will not be allowed to have more than 5kW of inverter connected anywhere. If you had a 5kW system, the rules effectively prohibit the connection of the new Yesla Powerwall2 because it too has an inbuilt inverter, thus adding to the total inverter capacity even though it isn’t adding to the exported power. This rule change completely undermines the purpose of solar, which is to save us money. The power companies have obviously seen that larger systems are reducing their profits and they no doubt had a word to the standards reviewers. This is a lick in the guts for customers trying to reduce power bills and to the movement towards green energy overall. I am definitely going to do my best to get completely freed from Actew’s shackles when the finances allow. They can’t charge me or dictate my system limitations if I haven’t got a connection, not yet anyway.
Oh, these new changes aren’t retrospective either, which seems a little convenient for the purpose of keeping the change from stirring a fuss in the media. Typical!

Brad Aberdeen 9:59 pm 06 Jul 17

Hi Mike, please contact me. I would be happy to try and help out.

dungfungus 8:19 am 06 Jul 17

A “blackout backup battery system” is a waste of money at the current price of up to $11,000.

It can only provide power for your lights and one dedicated power circuit for your fridge (nothing else) and it will only last a few hours.

You can’t even power your electric blanket with one.

wildturkeycanoe 6:56 am 06 Jul 17

Sounds good to me, our quote with a battery was around $12,000 too. I am not very impressed by the savings however. If you are going to spend so much on energy saving equipment, $800 a year sounds like a pretty average return. Remember you are always going to be paying $400 a year for a connection even if you don’t draw a single kW from the grid. That equates to $4000 over the payback time of your system, without factoring in price rises. So the power company is getting $4000 plus all that 6c/kWh cheap power from your hard earned investment. Yes you’re saving $800 a year but still relying on their 20c/kWh power to heat/cool and run your home at night unless you have enough battery storage to be nearly self sufficient. I am still weighing up if it is worthwhile or if goig completely off grid would be better. It’d certainly feel good not getting those shocks every 3 months.
Research the net, seems som people with 5kW systems are barely saving anything on their bills on solar alone. If you use most energy at night, batteries will make it more viable.

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