Alternative Technology Assn Forums

1. 

   Benny
   Member

   Does anyone understand the maths behind the latest news release ? From what I have heard they are saying that PV owners will receive $40 per MWh. They then say that for a typical 1.5kW PV installation the owner will get a subsidy of $6200.
   From my understanding a 1.5kW system will generate an average of about 6kWh per day or about 2MWh per year. So over 25years that would be 50MWh. $6200 at $40 per MWh implies 155MWh. How does all this work ?

   Posted Tuesday 2 Mar 2010 @ 12:13:08 pm from IP #
2. 

   rsigmund
   Member

   Your calculations are roughly close enough...

   The only thing I am 'sure' of, is the policy will be complex and hard for the public to understand.

   None of the policy seems to be going in right direction to me. And this looks like another type of RECs multiplier.

   Posted Tuesday 2 Mar 2010 @ 1:34:28 pm from IP #
3. 

   PeterReefman
   Member

   Hi Benny

   There's a couple of things in you calc that you've missed.

   First, the total is worked on 15 years rather than 25 years, even though we know a system will be producing for well over 15 years...

   And second, the five times multiplier is still there. So they taketh (almost half of the lifespan) with one hand and then giveth too much with the other.

   So in the example,

   1.5kw = 6kw/h per day = 2190kw/h per year = 32.85mw/h over 15 years
   32.85 x 5 = 164 RECs x $40 = $6,560 rebate.

   We know that in the old system a system like this was a bad thing for the climate because it would be producing 54mw/h in a 25 year lifetime, but reducing the amount of large-scale renewables required by 164mw/h.

   I actually think a home installed system is better than 54mw/h. There's a good argument to say that households with solar also become more efficient by perhaps another 5kw/h per day, and that future purchases by those people would be more likely to be 'greener' as well. If we factored all of that in we could perhaps double the 15-year scenario, but the 5 times multiplier actually triples it, meaning even with behaviour changes accepting a the full amount of RECs is a bad thing for the climate.

   Of course the game has changed now with a guaranteed majority of the RET going to large scale renewables, and things like domestic PV going outside of the 20%. This is great for the large scale stuff, and perhaps even eliminates the climate negatives against PV simply because they won't be stopping large scale renewables anymore. I guess the only thing we need to keep in mind is that the 'additional' will be an inflated number by at least 50%...

   That turned into a bit of a rant in the end! Hope it made sense.

   Cheers,
   Peter

   Posted Tuesday 2 Mar 2010 @ 9:00:46 pm from IP #
4. 

   Benny
   Member

   Thanks Peter. After I made the post I did a search and found that the 5x multiplier is still in there but the news release made it sound like a new system was being introduced.

   Posted Wednesday 3 Mar 2010 @ 5:11:37 am from IP #
5. 

   CNCandy
   Member

   The REC's system also uses a multiplier based on your location not the Solar Credits multiplier or was this used only in the $8000 PVRP?

   Posted Wednesday 3 Mar 2010 @ 5:43:02 am from IP #
6. 

   PeterReefman
   Member

   Hi CNCandy

   The old system didn't multiply RECs. It had 1 for 1 RECs based on 15 years in your particular location, so in most areas the total rebate would be closer to $9,000.

   Posted Wednesday 3 Mar 2010 @ 10:07:04 am from IP #
7. 

   munter
   Member

   So the price might be fixed for domestic RECs but if they still count towards the same target the how does their separation into fixed price actually help support larger renewable projects? I don't get it. Have I missed something or is the detail just not out yet?

   Posted Wednesday 3 Mar 2010 @ 10:25:30 am from IP #
8. 

   PeterReefman
   Member

   Munter I can't find the reference to it now, but my understanding is that the Large Scale part (called LRET) needs to make up 18%, and the domestic part (SRES) fills the remaining 2% and then (importantly) spills over and upwards.

   Posted Wednesday 3 Mar 2010 @ 11:01:19 am from IP #
9. 

   battyfam
   Member

   I am considering installing a 3kw system - does anyone know what the current rec rate is? Do I wait until Jan for the $40 rec rate or will I be able to install now and sell the recs at $40 in the new year. The price from my installer (Feb) quotes a rec price of $29 - with 190 recs $11 makes a reasonable difference.

   Posted Thursday 11 Mar 2010 @ 5:36:33 am from IP #
10. 

    CunningPlansDept
    Member

    Spot price is currently $42 judging by http://www.nges.com.au

    Posted Monday 15 Mar 2010 @ 10:18:22 am from IP #
11. 

    fairsjk
    Member

    The current REC price was $36 last week and the spot price has not changed this week so I would say $36. Ask your installer for another quote or simply take 190 X 7 off the price $1160. If they say no then say take a leap and go elsewhere. Eco Kinetics will install a 3kw system for $8490 in NSW or QLD.

    Posted Monday 15 Mar 2010 @ 11:14:10 am from IP #

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