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Maximise Solar Power Gain

Maximising Solar PV Efficiency

 

Maximising Solar PV OutputThere are many ways to maximise the gain of your solar PV system. Such methods as:

 

  • Optimal installation & placement of arrays
  • Power optimisers
  • Solar tracking systems
  • Shading elimination
  • Solar array cleanliness
  • Component efficiency & compatibility
  • Efficiency of components

 

From feedback collected during our IN-HOME ELECTRICITY REDUCTION SERVICES, we have found many home energy reduction methods, are not taken seriously by the householder with solar PV installed.

Most householders with solar PV systems are always aware of the maximum output of their solar system, especially soon after installation. Stating the proposed / actual financial gain, along with the maximum kW output. Whilst this is great news as the householder knows what is being generated above the roof, it is not good news when we ask the question:

 

What Are You Using Under The Roof?

 

Electricity Usage Under The Roof Is Often UnknownMost householder's it appears do not have a clue! Yet the daily kWh rating of their home is stated on their current electricity bill.

During the sales process of these solar PV systems, should we not be asking for details on the energy use within the client's home? Are these systems simply being sold on a, 'This is what the maximum $$$'s you could make scenario?' If so, some householders are going to be caught out and not see their dream investments return!

Amazingly is the fact householders are unaware their solar PV system, could further be generating a large proportion of energy, to support unknown electricity waste under the roof.

So to maximise the financial gain of any solar system, a HOME ELECTRICITY AUDIT is needed, even moreso in a NET metering environment.

Removing  standby electricity, drawing attention to other electrical waste, with appliances being checked for total energy use & efficiency. Now the home's energy usage is at a minimum! Knowing the energy used under the roof, allows for the effectiveness of any solar PV system to be known.

It does not take a lot of electrical waste within the home, to reduce a solar PV's gain.

150 watts of 24/7 standby, reduces your Gross Feed Solar Gain by 42% and more......

Our example Aussie home has:

 

  • 1.5 kW solar system
  • Generated energy output [average] of 6 kWh per day

 

To compare generated energy with wasted energy, we will convert the 6000 watts of generated energy, to an hourly figure. 6000 / 24 = 250 watts per hour.

The solar PV's annual output is 2190 kW per year @ 20 cents = $438 per year.
The same system at 60 cents would have been $1314 per year.

If you're not aware of the average Aussie home having a STANDBY ELECTRICITY issue, you need too be. Most homes we've visited, have a standby electricity rate, at anywhere between 25 watts to 250 watts plus. If your home has 150 watts of 24/7 standby electricity, this equates to 3.6 kW per day. Per year it is a staggering 1314 kW.

 

  • Our example home generating : 2190 kW per year
  • 150 watts 24/7 standby electricity : 1314 kW per year

 

If your thinking it should be 1.5 X 5 hours of sun? Think again! As your not taking into account the 20% of possible system inefficiencies [De-rating values]. Hence the 1.5 X 4 hours.

WOW! That's 60% of your generated solar power supporting waste! At this point of the in-home visit, most householders remember the time they spent choosing their system carefully, after looking at the efficiency of different solar PV systems. But the figures they were using, were in the region of 5% or 10% over  long time. Not a staggering 60% in a very short time!

For this example we will use the recent NSW gross feed tariff of twenty cents per kW. Our example solar PV system therefore will generate financially per day, 6 x 0.20 = $1.20

The daily cost of the 150 watts of standby electricity, is worked out by multiplying an electricity rate  of 30 cents per kWh by the daily 3.6 kW of standby. Standby costing $1.08 per day or $394 per year.

So your Solar system's making $1.20 per day, your buying in your standby electricity at $1.08 per day! Where is your profit now? Making only 12 cents per day!

As electricity rises your profit disappears quicker! Even for a small amount of standby electricity! Unless you have a large Solar PV system, your 1.5 - 2kW system with standby electricity will make you little, whilst you have waste & electricity costs rise!

 


How Standby Electricity Reduces Your Gross Feed Solar PV Gain
Based On A 1.5 kW Solar PV System Generating 6 kW Per Day
 

Gross Feed 60 cents

Gross Feed 20 cents

Electricity kWh Rate

Cost Of 3.6kW 24/7 Standby D/Q/Y

Generated
Day $3.60
Quarter $329
Year $1314

Generated $
Day $1.20
Quarter $110
Year $438

20.0

$0.72 / $64 / $256

25.0

$0.90 / $82  / $329

27.5

$0.99 / $90 / $361

30.0

$1.08 / $99 / $394

32.5

$1.17 / $107 / $427

35.0

$1.26 / $115 / $460

40.0

$1.44 / $131 / $526

42.0

$1.50 / $137 / $548


Home Electricity Reduction Services & Products - Aussie Home Energy
 

 

42% of profit GONE when electricity is at 42 cents!

 

 

What Happens As Electricity Cost Continue To Rise?

Every time there is an electricity price hike, your gross feed system's profit is yet again reduced! Therefore it will pay to make sure standby electricity and any other waste under the roof, is checked for on a frequent basis, not allowing it to creep back into your lifestyle.

Like every Aussie home, it's simply a choice to reduce this waste.

Is Your Aussie Home Energy Efficient?At Aussie Home Energy we can personally help you with your home electricity reduction program. We will increase your awareness, educate you, and importantly help you to keep your home electricity reduction program on track.

Remember it only takes a small increase in the electricity costs, to dramatically reduce your gross feed solar system's financial gain!

If you are not too sure about your solar PV systems output, or your electricity usage under the roof, we are here to help you. CONTACT US today.

If you are not checking the output daily of your solar system, you should be! Get a HOME ELECTRICITY MONITOR and bring the data inside the home.

If you have not as yet installed a solar PV system, we hope you found the information useful.

 

Aussie Home Energy : Maximise Solar Power Financial Return

 

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Alternative Uses For 50W Of 24/7 Wasted Standby Power?

How Much POWER Are You Wasting? What Is The Cost?

 

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