Why Oversize Solar Inverters? (e.g. 6.6kW of panels & 5kW inverter)

Why you should oversize solar inverters Perth Solar Warehouse

Surely to oversize solar inverters beyond their generation capacity is not necessarily a good idea? Get ready to discover that it’s the best thing you could do, when within specification, and the inverter manufacturers themselves recommend it. Mind blown!

Get the right solar with the right advice. 

Browse at your leisure. The latest edition of the Perth Solar Warehouse solar price list includes the latest solar panel options and so much more:

  • Fully installed 3.3kW, 6.6kW & 10kW+  solar prices.
  • Exclusive discounts & interactive price guide.
  • Mix & match inverter technology.
  • Exceptional solar battery options.
  • Energy production guide.
  • Estimated savings potential.
  • Payment plan options & more!
The best solar packages Perth & Bunbury region customers love. A must view before buying. 

Oversize and thrive.

Many leading solar inverter manufacturers such as SMA and Fronius suggest that if remaining within the rated voltage and current input ratings of the inverter, oversizing solar inverters by up to 50% are the best way to maximise solar energy production.

Got an additional question in relation to oversizing solar inverters? Ask below at the bottom of this post. – PSW Team.

Fronius Solar Inverters Perth WA by Perth Solar Warehouse

How does oversizing maximise production?

Solar inverters are more efficient when they operate at peak. That’s the consensus. However, the modern-day maximising of production is often based around particular grid or feed-in tariff limitations.

Western Power often will not allow any single-phase solar inverter capacity higher than 5kW output. Three-phase solar inverter capacities are limited depending on localised transformer limitations in which an installation is connected to on the grid.

In an alternative sense, solar inverter capacities which exceed 5kW output capacity are excluded from Synergy‘s feed-in tariff of 7c per unit (kWh) exported to the grid. 

How much can one oversize solar inverters?

In theory, as much as possible. Ensuring only the input voltage and current ratings of the solar inverter are not exceeded. Beyond such, alternative external limitations set by national and local regulatory authorities are in place to also limit one’s ability to oversize solar inverters in general.

The simple calculation which can apply to all criteria though is as follows: Solar inverter output capacity multiplied by 1.33 or 33%.

Why you should oversize solar inverters Perth Solar Warehouse

Why is 1.33 a magic number?

1.33 or 33% of a solar inverters rated output capacity has been determined by the powers that be in Australia, as an acceptable oversizing increment without being detrimental to a solar energy systems ability to offset carbon emissions.

Remember, your ability to claim a subsidy on the upfront purchase price of a solar power system is based on its ability to offset carbon emissions now and into the future.

Oversizing solar inverters simplified.

Forget the equations. You need to know the most you can oversize your particular solar inverter capacity. Below are the most common instances to oversize solar inverters and their maximum input capacity which apply to STCs (Small Technology Certificates) – your subsidy. Here it is simplified:

  • 3 kW Inverter – 3.9 kW Solar.
  • 5 kW Inverter – 6.6 kW Solar.
  • 8 kW Inverter –  10.6 kW Solar.
  • 10 kW Inverter – 13.3 kW Solar.
  • 20 kW Inverter – 26.6 kW Solar.
  • 30 kW Inverter – 39.9 kW Solar.

When network limitations are set by inverter output capacity, oversizing solar inverters are the best way to maximise generation capacity towards overall kWh.

The PSW Ultimate Guide bonus:

FREE Upgrade on Premium Range Panels. Theres never been a better time to oversize solar inverters with a FREE oversizing upgrade through Perth Solar Warehouse. Get 6.6kW of solar panels for the price of of 5kW or get 13kW of solar panels for the price of 10kW on all premium range solar panel options. 

Mention “OVERSIZE BONUS 2019” prior to buying.

Why 6.6kW of solar panels on a 5kW inverter?

The most common system combination where oversizing solar inverters occur and to which the reasoning is more so financial than anything else. Residential customers who install greater than 5kW solar inverter capacities will forfeit their ability to qualify for the Synergy solar feed-in tariff (Renewable Energy Buyback Scheme – REBS). 

Therefore what’s the best way to achieve greater power production without increasing solar inverter capacity? You guessed it, oversizing solar inverters to the maximum allowable input capacity, 6.6kW.

Additionally, single-phase solar supplies connected to the Western Power network are currently limited to a maximum of 5kW output to mitigate the effects of phase-imbalance.

Why 13.3kW of solar panels on a 10kW inverter?

Certain network limitations can exist around 3-phase 10kW inverter capacities enforcing a maximum 10kW output capacity. However, in many instances, the popularity of the 10kW inverter range by most manufacturers ensures an enticing and reduced capital outlay as opposed to selecting a 12 kW or 15kW inverter capacity with virtually the same overall yield.

In many instances, 10kW inverters are less expensive than their 8KW counterparts due to increased demand and the competitive nature of the market.

Related: Installed 13kW solar energy system options by Perth Solar Warehouse (with prices). Shop now > 

Why 39.9kW of solar panels on 30kW inverter capacity?

Another excellent example is the export limiting requirements surrounding solar energy systems greater than 30kW on the Western Power network. In this instance, the ability to oversize up to 39kW facilitates a relatively basic grid-tie solar energy system which has the ability to generate almost as much energy as a 40kW system without expensive export limiting features. 

Oversize & thrive.

Below is the best way to ensure your maximum oversizing potential. Browse PSW’s entire oversized solar system range with little to virtually no additional expense when compared to a like for like rated product pairing.

  • Discover huge value with an unbeatable selection of oversized solar deals within the latest PSW digital catalogue delivered direct to your email inbox. .
  • CLICK HERE!
  • Select a product combination which meets your budget or technology desire.
  • Email back a PSW technician in your time to perform a free remote site report to match your preferred system with your specific roof profile.

PSW technical design engineers ensure when oversizing solar inverters all system parameter remain whin each manufactures intended operating parameters. Ensuring all system warranty requirements are met for a long and healthy operational system life.

LATEST

SOLAR.
DEALS.

Get The Latest PSW Solar System Deals.

Secure warranty & extra benefits.

Want more?

Oversize your solar inverter and harness maximum yields for little to no additional cost. The entire oversized PSW product range is available within the latest PSW digital catalogue for ultimate value.

Get your copy via the above link, and you’ll be guaranteed the best price for your specific installation. It’s that simple.  

Be good to yourself.

View more limited time specials: https://perthsolarwarehouse.com.au/deals/

Why You Should Avoid 72-Cell Solar Panels.

72-Cell Solar Panels by Perth Solar Warehouse

High power solar panels you should avoid.

Resist the temptation of an appealing higher watt class and avoid 72-cell solar panels or the equivalent in modern 144 half-cut cell designs. 72-cell solar panels are primarily designed by manufacturers for ease of installation in commercial, industrial and grid-scale installations. With larger dimensions and increased weight, selecting 72-cell solar panels for a residential solar project is likely to have some detrimental side effects.

Get the right solar with the right advice. 

Browse at your leisure. The latest edition of the Perth Solar Warehouse solar price list includes only 60-cell solar panel options and so much more:

  • Fully installed 3.3kW, 6.6kW & 10kW+ 60-Cell solar prices.
  • Exclusive discounts & interactive price guide.
  • Mix & match inverter technology.
  • Exceptional solar battery options.
  • Energy production guide.
  • Estimated savings potential.
  • Payment plan options & more!
The best solar packages Perth & Bunbury region customers love. A must view before buying. 

Unlike alternative electrical purchases in life where higher wattage is more powerful and therefore often better for the task, the same cannot be said for 72-cell solar panels. Solar panels in general form part of a system and that systems ability to generate power utilising a nominated space.

In most instances, 72-cell solar panels do not reduce the required surface area and are therefore no better than their 60-cell counterparts for the task. There is a pupose for such cumbersome solar panels, and it’s not necessarily your residential rooftop. Below are five key areas you need to know before investing your hard-earned money.

Did we miss something you would like to know more about? If so leave it below! – PSW Team.

What are the differences between 60 & 72-cell solar panels?

In short, two additional rows of 6-inch cells (12 cells total) added to a standard width 60-cell solar panel form the basis of 72-cell solar panel designs. Such a result alters specific electrical characteristics. However, the primary difference remains the overall larger physical dimensions.

For ease of comparison, below is a table listing critical feature differences utilising the LONGi LR6-PE solar panel range with like for like 60 cell and 72 cell solar module options.

60-Cell

315W Solar Panel
  • Width 991mm
  • Height 1650mm
  • Weight 18.5kg
  • 60 x 6 inch monocrystalline cells
  • Efficiency 19.3%

72-Cell

375 W Solar Panel
  • Width 991mm
  • Height 1956mm
  • Weight 22.5kg
  • 72 x 6 inch monocrystalline cells
  • Efficiency 19.3%

What are 144 half-cut cell solar panels?

Expect this particular design to replace the 72-cell solar panel variant due to rising demand in the industry. In brief, the 144-cell solar panel is derived by cutting each of the 72-cells in half and arranged in a formation which reduces electrical losses. A result which in turn maximises the efficiency of the solar panel.

The equivalent of this solar panel design in a 60-cell module is 120 half-cut cells. The alternative name associated half-cut cell technology if the number variations weren’t already confusing enough is a split-cell solar module design.

LONGi Solar Panels by Perth Solar Warehouse

5 Reasons to choose 72-cell solar panels.

1) Industry. The ability to support the additional weight of a 72-cell solar panel on the selected mounting location is often a non-issue thanks to reinforced load-bearing capabilities.

2) Industry. Reduced installation time through mounting less solar panels. A result which in turn can have a positive effect on the capital outlay required. Considering nearly all solar installations are often priced per/watt, such is a less likely case.

3) Residential. In the rarest of circumstances where selected roof faces are less than accommodating, achieving electrical design flexibility with 72-cell solar panels over the equal counterpart of a 60-cell module make-up is an option.

4) Residential. Specific 72-cell solar panel designs can assist with an aesthetic presentation where bearer spacings are wider. Just ensure additional reinforced support can be installed to accommodate a more centralised weight distribution.

5) General. Particular module-level optimisation and monitoring requirements at a reduced cost. 

6 Reasons to avoid 72-cell solar panels.

1) Residential. A more concentrated and centralised weight distribution. A result which is more likely to upset the structures integrity over time if installed the same way as a 60-cell solar panel.

2) Residential. Not in the end-users best interest, it’s cheaper for the company from which you are purchasing. Unlike industry, residential solar companies without in-house installers often pay sub-contractors per solar panel. Less panels = less installation costs. 

3) Residential. Comprised of angled hips and valleys Australian residential rooftops can be limited on space. Larger 72-cell solar panels are challenging to adapt to trickier rooflines due to the larger rectangular dimensions. Overall 72-cell solar panel designs are not a very effective use of space when angles are involved.

4) Residential. Looking to expand or replace in time? If ever need be, or for whatever reason, 72-cell solar panel variants with similar electrical characteristics are harder to source. 60-Cell solar panels are, without a doubt, the most common module sizing, and there is an abundance of options available.

5) Residential. Increased structural wind loading. Solar panels, in general, are like sails, the greater the surface area, the more wind you are going to catch. Even though 60-cell solar panels occupy a similar surface area, the reduced size and increased mounting points reduce the amount of pressure at each location.

6) Residential. Manhandling degradation. At the time of installation, the handling of solar panels is critical. The lighter physical nature of a 60-cell solar panel ensures the likelihood of manhandling stress is lessened. These stresses often present themselves over time in the form of snail trails or microcracks and possibly inturn hotspot.

The PSW Ultimate Guide bonus:

FREE Upgrade on Premium Range Panels. With PSW Life Support, to add more solar panels is never an issue. Gain instant access to PSW Life Support by removing your current system and installing a new system with Perth Solar Warehouse.

Mention “EXPANSION BONUS 2019” prior to buying.

What is the cost difference 60 & 72-cell solar panels?

To purchase by the retailer at wholesale level? Virtually no difference in a like for like 60-cell and 72-cell variant. Often priced on a per/watt basis, solar panels in general form part of a system.

Strip each 60 & 72-cell solar panel variant back to a per watt purchase price at the wholesale level. The cost is almost always identical, as the efficiency and technology define the panel, not its wattage.

Get what you expect.

Below is the quickest and safest way possible to ensure only 60-cell solar panels. Browse an entire solar range (including installed prices) without the worry of any solar panel option being a 72-cell variant. PSW only quote 72-cell solar panels upon request for specific projects.

  • Discover an unbeatable selection of solar deals within the latest PSW digital catalogue delivered direct to your email inbox. 60- Cell or 120 half-cut cell assured.
  • CLICK HERE >
  • Select a product combination which meets your budget or technology desire.
  • Email back a PSW technician in your time to perform a free remote site report to match your preferred system with your specific roof profile.

60-cell solar panels, as opposed to 72-cell solar panels, are the ideal option for residential solar installations. Reasons to avoid 72-cell solar panels outweigh the reasons to choose, one should think twice if 72-cell (144 half-cut) solar panel options are being specified. 

Remember, avoid the temptation of a higher watt class and be guided by efficiency and warranty to determine the value of a solar panel.

Installer Vision by PSW Energy

60-Cell

SOLAR.
DEALS.

Get The Latest PSW Solar System Deals.

Secure warranty & extra benefits.

Want more?

Compare the cost to add more solar panels from entry-level to elite options. The entire PSW product range is available within the latest PSW digital catalogue.

Get your copy via the above link, and you’ll be guaranteed the best price for your specific installation. It’s that simple.  

Be good to yourself.

View more limited time specials: https://perthsolarwarehouse.com.au/deals/

LG Solar Panels Perth WA Buying Guide.

LG Solar Panels Perth WA by PSW

LG solar panels, worth the extra expense?

Doing any form of research into solar, it soon becomes obvious that the global mega corporation which is LG has developed an industry-leading range of solar products. With anything leading though, there is usually is an exceedingly higher price tag to match when compared to the cheap stuff. However, the overall value must be considered. 

LG Solar Panels Perth WA Product Feature. 

The latest edition of the Perth Solar Warehouse  solar price list includes all the following need to know information about LG solar panel options & more:

  • Fully installed 3.3kW, 6.6kW & 10kW+ LG solar panel prices.
  • Exclusive discounts & interactive price guide.
  • Mix & match inverter technology.
  • Exceptional solar battery options.
  • Energy production guide.
  • Estimated savings potential.
  • Payment plan options & more!
The best LG solar panels Perth WA customers love. A must view before buying. 

Initially, let’s put LG’s solar and energy division into perspective. Most will relate with the LG brand to something like a TV. A good upper middle class product, not the cheapest and not often the most expensive in the department store.

When it come to energy generation and storage, LG has had some clear foresight within the last decade to acknowledge the self-generation energy sector as the next wave. What’s even better, the focus was not on cheap volume market dominance. It became all about innovation and sector relevance for LG’s energy division.

Did we miss something relating to LG solar panels you feel alternative shoppers can benefit from? If so, leave a comment below! – PSW Team.

Save More LG Solar Panels Perth WA packages

Which to avoid?

Residential homeowners don’t require the larger more cumbersome size of 72-cell solar panels from any manufacturer. Especially when there is equal efficiency in a lighter, more adaptable 60-cell solar panel by the same manufacturer available. 

One of the few time solar panel wattage is very misleading. On the upside though is that 72-cell LG solar panels are very hard to come by in the local market and often only specified for larger power generation applications.

LG Solar
Efficiency
Download
LG NeON 2 395W
19.1%
Datasheet
LG NeON 2 400 | 405W
19.3% – 19.5%
Datasheet

Related Article: Why you should avoid 72-cell solar panels, discover >

Which to consider?

LG is one of the few solar panel manufacturers which produce only ultra-high efficiency solar panel options. This is made even easier with a very slim product offering in the 60-cell solar module variants.

Late 2019, only LG NeON 2 from 345W will be available on a distribution level and therefore, reflected through installer channels. The LG NeON R solar panel range will remain as an industry-leading ultra-high efficiency solar panel option but priced out of reach for most. An average 20% price premium for the 1.5% module efficiency increase.

Expansive rooftops can consider:
LG Solar
Efficiency
Download
LG NeON 2 330 | 335W
19.3 – 19.6%
Datasheet
LG NeON 2 340 | 345 W
19.8% – 20.1%
Datasheet
Limited rooftops should consider:
LG Solar
Efficiency
Download
LG NeON R 365 | 370 W
21.1 – 21.4%
Datasheet

What is the warranty?

An elite warranty on the solar panel warranty spectrum. All LG solar panels are backed by a comprehensive 25 & 25-year warranty. What does this mean? Many alternative solar panel warranties are layered as a 10 & 25-year warranty or similar. The initial figure being the most critical as a product warranty. The second defining a solar panels warranted performance degradation should the product remain intact.

PRODUCT: LG solar panels and their overall product quality are guaranteed, if installed to manufacturer specifications, for 25-years. A very clear and comprehensive solar panel warranty which includes both product and service (unlike alternatives).

PERFORMANCE: A category where no two solar panel performance warranties are ever the same. What does a 25-year performance warranty mean? In the simplest explanation possible, by year 25, an LG solar panel shall still be working within 90% of its rated output. Common alternative 25-year performance warranties stipulate an 80% (20% degradation) performance rating in the same time.

LG Warranty Download >

Where are LG solar panels made?

As a leading solar module manufacturer, LG solar panels are manufactured in on of the world’s most advanced solar panel manufacturing facilities in Gumi, South Korea. Renowned as a global hub for modern manufacturing excellence.

One can be assured that as a premium module manufacturer, LG solar panels are derived from leading-edge, fully automated production facilities utilising LG’s renowned high-quality material selection.

LG Solar Battery Facility by Perth Solar Warehouse

What do they cost?

LG Solar panels are more affordable than ever.  The PSW range of LG solar panels which feature the InterSolar award-winning 2016, NeON 2 variant, exceeds expectation when subjected to real-world conditions.

Boasting high-yield energy production and guaranteed for 25-years the overall value for the product is extraordinary. Black anodised framing compliments towards aesthetically pleasing style requirements. While an all white ultra-durable substrate maintains the cooler less resistive environment required for the NeON 2 Cello cells to achieve maximum production.

  • 3kW: $4990 – $6990 AUD.
  • 6kW: $5990 – $9990 AUD.
  • 10kW: $9990 – $17990 AUD.

As always, price differences vary depending on the preferred inverter selection, installation specifics, power supply, applicable subsidies and more. Above is a general variance for the Perth & Bunbury, Western Australia region with the current STC Zone 3 subsidy applied as a point of sale discount.

Please note that accurate (and often reduced) pricing is currently available in the LG Solar Perth WA Product Feature within the latest PSW Catalogue >

Which is ideal for you?

Over the last few years, the most obvious product pairing has always been LG Solar panels with the well regarded Fronius inverter range. As an inverter which has endured the best part of a decade through proven reliabilty, many alternative high-quality inverter brands have now returned to popularity. 

Such a resurgence is due to the greater product specifications and features expected from what a modern inverter technology should deliver. InterSolar award-winning features much like the new release SMA Sunny Boy & Sunny Tripower range of inverters promoting ennexOS advanced energy management software as standard (late 2019). 

Why not compare inverter technologies from an unbiased perspective? Alternative website – Best solar inverters 2019 >

Current LG Solar panels:

LG

NeON 2
  • 60-cell Cello.
  • 19% module efficiency.
  • -40oC to +90oC.
  • Temp COEF -0.37%/oC.
  • 2.8mm tempered glass.
  • 1686 x 1016 x 40 mm.
  • 25 & 25-yr warranty.
  • Made in South Korea.

LG

NeON R
  • 60-cell Rear Contact
  • 21% module efficiency.
  • -40oC to +90oC.
  • Temp COEF -0.30%/oC.
  • 2.8mm tempered glass.
  • 1700 x 1016 x 40 mm.
  • 25 & 25-yr warranty.
  • Made in South Korea.
FEATURED: 2 roof orientations or less.

Huawei

  • 1-phase.
  • 2, 3, 4, 5 kW.
  • Dual tracking.
  • WiFi/ Ethernet LAN.
  • FusionSolar.
  • 98% efficiency.
  • IP 65.
  • 360 x 390 x 133 mm.
  • 10-year warranty.
  • Made in China.

Fronius

  • 1-phase.
  • 3, 4, 5 kW.
  • Dual tracking.
  • WiFi/ Ethernet LAN.
  • Fronius Solar.web.
  • 97% efficiency.
  • IP 65.
  • 645 x 431 x 204 mm.
  • 10-yr (5+5) warranty.
  • Made in Austria.

SMA

  • 1-phase.
  • 3, 4, 5 kW.
  • Dual tracking.
  • WiFi/ Ethernet LAN.
  • ennexOS (late 2019).
  • 97% efficiency.
  • IP 65.
  • 435 x 470 x 176 mm.
  • 10-yr (5+5) warranty.
  • Made in China/Germany.

AC coupled battery compatible (SENEC.Home, Tesla Powerwall 2), selected DC Coupled battery compatible – Huawei, reliability, advanced monitoring/ management and Australian support.

OPTIMISED: Greater than 2 roof orientations or shading.
SolarEdge HD-Wave inverter by Perth Solar Warehouse

SolarEdge

  • 1 & 3-phase.
  • Single input/ optimisers.
  • Ethernet LAN.
  • SolarEdge Monitoring.
  • 98% efficiency.
  • IP 65.
  • 450 x 370 x 174 mm.
  • 10-year warranty.
  • Made in China.

Huawei

  • 1 & 3-phase.
  • Dual input/optimisers
  • WiFi/ Ethernet LAN.
  • Huawei FusionHome.
  • 97% efficiency.
  • IP 65.
  • 525 x 470 x 166 mm.
  • 10-year warranty.
  • Made in China.

SMA

  • 1 & 3-phase.
  • Dual input/optimisers.
  • WiFi/ Ethernet LAN.
  • ennexOS (late 2019).
  • 97% efficiency.
  • IP 65.
  • 435 x 470 x 176 mm.
  • 10-year warranty.
  • Made in China/Germany.

AC coupled battery compatible (SENEC.Home, Tesla Powerwall 2), selected DC Coupled battery compatible – SolarEdge & Huawei, module-level optimisation, reliability, 10-year+ product warranty, superior asset management and Australian support.  

LG Solar Panels Perth WA Ultimate Guide bonus:

FREE Energy Consumption Meter. When combining your preferred LG solar panel choice with a Huawei solar inverter. Exclusive to Perth Solar Warehouse. Adding this meter ensureing the Huawei hybrid inverter range is 100% plug and play battery ready. When your’e ready.

Mention “LG BONUS 2019” prior to buying.

Your ideal system selection continued...

Alternatively, discover your perfect LG Solar infused solar power system in as little as 5 minutes with detailed annual yield insights and more. 

  • Discover the PSW LG Solar Panels Perth WA product feature within the latest PSW digital catalogue delivered direct to your email inbox.
  • CLICK HERE!
  • Select a product combination which meets your budget or technology desire.
  • Email back a PSW technician in your time to perform a free remote site report to match your preferred system with your specific roof profile.

Understanding that LG solar panels, in general, is a high-quality solution for your solar project is a fantastic space to be in. Taking advantage of the Perth Solar Warehouse range of amazing LG Solar deals is will no doubt alleviate any chance of buyers remorse when taking the next step to go solar.

LG

SOLAR.
DEALS.

Exclusive LG Solar Panels Perth WA deals.

Secure warranty & extra benefits.

Want more?

Compare the PSW LG Solar options against the entire PSW product range for price, warranty, design and more within the latest PSW Catalogue >.

At the end of the day this is a testament to superior innovation which only few can match. Safeguarding such an investment with an SMA or Fronius inverter option ensures the maximum energy yields you’ve been searching for.

Your five star solar satisfaction with the PSW Save More LG Panels Perth WA range awaits. I can’t wait to see your inquiry relating to this beautiful product combination.

Be good to yourself.

View more limited time specials: https://perthsolarwarehouse.com.au/deals/