Solar Power Case Study Perth

The Project

solar power case study perth 6.46

In 2011, Sunday Energy installed this residential solar power system in Perth. We use the installation to show Western Australians how much electricity solar panels can generate in local conditions.

We hope this case study encourages more homeowners, businesses and community organisations to go solar.

Solar Power System Design

The system was designed using a SMA Sunny Boy 5kW inverter and Suntech solar panels. There are two strings of 11 x 190 watt solar panels (connected in parallel), and two strings of 6 x 190 watt solar panels (connected in parallel) - making a total of 6.46kW of solar panels.

Please Note: The solar power system was upgraded on the 7th of July 2015 from 27 solar panels to 34 solar panels.

Solar Power Charts

The charts show electricity generated by the Suntech solar panels since the 1st of October 2011. We have combined this data with temperature and rainfall data from the local bureau of meteorology weather station.

The Sunday Energy Team - 1300 699 782

Case Study 6.46

Solar Power System: 6.46kW (kilowatt) solar power system
Location: Perth, Western Australia (Perth Hills)
Solar panels: 34 x 190 Watt Suntech 190S-24/Ad+ Solar Panels
Inverter: 5 kW SMA Sunny Boy 5000TL-20
Roof pitch: 20 degrees - very common roof angle for Perth Houses
Orientation / Azimuth: 355 degrees (5 degrees off North)
Weather Station: BICKLEY Lat: -32.01 Lon: 116.14 Height: 384m (above sea level)
Shading Average: 13% energy generation losses from shading.

 

Solar Power Case Study Perth December 2016


Perth Solar Power Case Study December 2016 

Another great month for Solar PV in Perth

 

Solar Electricity Generation

Average Daily Generation: 37.62 kWh (units) per day

 

Highest: 41.15 kWh

 

Lowest: 16.6 kWh

 

Solar Power Case Study Perth November 2016

Perth Solar Power Case Study November 2016
 

Nearly $300.00 worth of electricity generation in November

Case Study 6.46 generated 1,132 kWh in November. If you bought that same amount of electricty from Synergy, they would charge you $299.59.

The hottest day: 39.9 degrees, recorded at the Pearce RAAF base on the 26th.
The Wettest day: 24.4 mm at Anketell on the 17th.

Solar Electricity Generation

Average Daily Generation: 37.75 kWh (units) per day

 

Highest: 41.21 kWh

 

Lowest: 20.08 kWh

 

Solar Power Case Study Perth October 2016

Solar power case study october 2016
 

12 Days of 40+ kWh of Solar PV Electricity Generation

October 2016 was a good month for solar power generation in Perth. Each kW of solar PV generated over 156 kWh of electricity. Total solar power generation for the month was 1,012.22 kWh.   

Solar Electricity Generation

Average Daily Generation: 32.65 kWh (units) per day

 

Highest: 41.63 kWh

 

Lowest: 15.51 kWh

 

Solar Power Case Study Perth September 2016

Perth Solar Power Case Study September 2016
 

750 kWh for the first month of spring

 

Solar Electricity Generation

Average Daily Generation: 25.00 kWh (units) per day

 

Highest: 37.86 kWh

 

Lowest: 13.92 kWh

 

Solar Power Case Study Perth August 2016


Solar Power Case Study Perth August 2016 

No need to clean your solar panels

Perth recorded 110 mm of rainfall in August and double that in the Perth hills. Perth Airport had its coldest August for 24 years, and Jarrahdale recorded the wettest day with 58 mm of rain on the 27th.

Solar Electricity Generation

Average Daily Generation: 18.42 kWh (units) per day

 

Highest: 29.36 kWh

 

Lowest: 6.12 kWh

 

Solar Power Case Study Perth July 2016

Solar Power Case Study July 2016 

Solar panels generate 90kWh per kW in July

July was another good month for generating clean sun-powered electricity in Perth. Each kW of solar panels genarated 90 kWh of electricity. Not bad for winter.

Solar Electricity Generation

Average Daily Generation: 18.78 kWh (units) per day

 

Highest

Wednesday 13th: 25.87 kWh

 

Lowest

Saturday 16th: 9.19 kWh

 

Solar Power Case Study Perth June 2016

Solar Power Case Study 6.46kW June Perth 2016

Rain Down. Solar Up

Rainfall in Perth was below average and solar power generation was up. The 6.46kW solar power system generated 8% more power (on a per kW basis) compared with the same period last year.

Some of the numbers:
Hottest day of the month: Gosnells reached 24.9 °C on the 3rd of June
Coldest day of the month: Bickley reached 11.7 °C on the 7th of June
Wettest day of the month: Swanbourne had 37.2 mm of rain on the 13th of June

Solar Power Production

Average Daily Output: 17.23 kWh (units) per day

 

Highest Output

Thursday 2nd: 25.03 kWh

 

Lowest Output

Monday 20th: 4.95 kWh

 

Solar Power Case Study Perth May 2016

Solar Power Case Study May 2016

Solar energy generation back on track

 

Solar Power Production

Average Daily Output: 18.57 kWh (units) per day

 

Highest Output

Wednesday 11th: 25.83 kWh

 

Lowest Output

Thursday 19th: 5.76 kWh

 

Solar Power Case Study Perth April 2016

Solar Power Case Study April 2016

Solar energy production down 18.52% in April

When compared with the average (per kW) for the last four years, April was down 18.52%. When compared with March 2016, power generation is down 32.6% in one month.

It was a dry start to April until a slow moving trough produced frequent showers between the 9th and 12th. A mid level trough and associated cloudband tracked over the State's southwest from the 17th to 19th, bringing widespread rainfall to the Perth area. A cold front produced rainfall across Perth on the 25th (ANZAC Day) and 26th, and we finished the month with plenty of cloud and light rain falls.

 

Solar Power Production

Average Daily Output: 19.16 kWh (units) per day

 

Highest Output

Saturday 2nd: 31.52 kWh

 

Lowest Output

Monday 11th: 5.06 kWh

 

Solar Power Case Study Perth March 2016

Perth Solar Power Case Study March 2016

Perth Solar Power Case Study averages 27.9kWh (units) per day in March

Mean minimum temperatures in March 2016 were generally 1-2 °C warmer than normal across the Perth Metropolitan area. Rainfall was above average for most sites, mostly as a result of isolated thunderstorms in the northern and eastern suburbs on the 19th and from the 25th to 27th.

 

Solar Power Production

Average Daily Output: 27.90 kWh (units) per day

 

Highest Output

Tuesday 1st: 40.09 kWh

 

Lowest Output

Saturday 26th: 5.01 kWh (storm)

 

Best and worst days for solar power in Perth

Solar Power Case Study Perth February 2016

Solar Power Case Study February 2016

Perth Solar Power Case Study Generates 1,051kWh (units) in February

Above average temperatures in the Perth Metropolitan area in the first half of the month. Rainfall was below average.

 

Solar Power Production

Average Daily Output: 36.42 kWh (units) per day

 

Highest Output

Tuesday 2nd: 41.43 kWh

 

Lowest Output

Tuesday 16th: 9.47 kWh (power blackout)

 

Perth power blackout 8.15am 3pm

Solar Power Case Study Perth January 2016

Perth Solar Panel Case Study January 2016

Perth Solar Power Case Study Generates 953kWh (units) in January

Mostly average maximum temperatures.
Above average minimum temperatures.
Above average rainfall.

Across the Perth area, rainfall in January was above average, ranging from 15 mm to 30 mm on the coastal plain and 40 mm to 60 mm in the hills.

 

Solar Power Production

Average Daily Output: 31.07 kWh (units) per day

 

Highest Output

Wednesday 13th: 41.14 kWh

 

Lowest Output

Saturday 30th: 8.60 kWh

 

Solar Power Case Study Perth December 2015

Solar Power Case Study Perth December 2015

November beats December for solar PV production in 2015

Mean maximum temperatures and mean minimum temperatures were near average for most Perth suburbs in December.

Rainfall was generally above average, with most of the rainfall recorded between the 5th and the 7th.

Hottest day    43.6 °C at Pearce RAAF (28th)
Coldest day    16.3 °C at Bickley on the (5th)
Wettest day    28.2 mm at Bickley on the (6th)

 

Solar Power Production

Average Daily Output: 35.90 kWh (units) per day

 

Highest Output

Tuesday 1st: 40.71 kWh

 

Lowest Output

Sunday 6th: 20.05 kWh

 

Solar Power Case Study Perth November 2015

Solar Power Case Study Perth November 2015

Another Warm Month

Daytime and overnight temperatures were much warmer than normal for most sites in the Perth metropolitan area, while rainfall was near average.

Perth Metro recorded a mean maximum temperature of 28.5 °C for November, which was about 2 °C warmer than the long-term average, and the equal third highest mean maximum temperature for November since records began in 1897.

How much electricity does a 5kW inverter with 6.46kW of solar panels produce at this time of year?

Solar Power Production

Average Daily Output: 36.00 kWh (units) per day

 

Highest Output

Wednesday 4th: 40.82 kWh

 

Lowest Output

Saturday 7th: 22.21 kWh

 

Solar Power Case Study Perth October 2015

Solar Power Case Study October 2015

Warmest October on record for Perth

It was the warmest October on record for many suburbs in the Perth metropolitan area. Daytime temperatures were 2 °C to 5 °C warmer than normal. Coastal suburbs observed between six and nine days with temperatures at or above 30 °C, their highest number of 30 °C days in October on record.

 

Solar Power Production

Average Daily Output: 32.16 kWh (units) per day

 

Highest Output

Friday 16th: 40.75 kWh

 

Lowest Output

Wednesday 14th: 17.76 kWh

 

Solar Power Case Study Perth September 2015

Perth Solar Power Case Study September 2015

Another record-breaking month

It was one of the warmest Septembers on record for Perth, with several sites recording their highest September mean maximum temperatures. Rainfall in September was in the 20 mm to 70 mm range, which is 40% to 60% below the long-term average. Most of the rainfall was recorded during the first half of the month.

 

Blackouts continue to promote the hybrid/battery backup option

If the blackouts continue, we will have many more customers installing a battery backup system.

 

Solar Power Production

Average Daily Output: 24.78 kWh (units) per day

 

Highest Output

Monday 28th of September: 35.66 (units) kWh

 

Lowest Output (day of power outage)

Wednesday 2nd of September: .59 (units) kWh

 

Solar Power Case Study Perth August 2015

Solar Power Case Study August 2015

Rainfall in August was near the long-term average for most of Perth, and day-time and overnight temperatures were also generally near the long-term average.

Just in case you were wondering..

 - The solar panel output is affected by shading in the mornings and afternoons.

 - The solar panels have never been cleaned.

 - Every now and again there is a power outage / grid failure caused by storms, grid maintenance or gold plating.

Who turned off the lights?

Looking at the August chart, you can see very low electricity production on the 4th, 8th, 20th and 26th of August. This was caused by power outages/blackouts. It may be time to investigate a hybrid option.  

Solar Power Production

Average Daily Output: 17.08 kWh (units) per day

 

Highest Output

Thursday 27th Of August: 29.76 (units) kWh

 

Lowest Output (day of power outage)

Saturday 8th of August: 1.00 (units) kWh

 

Solar Power Case Study Perth July 2015

Solar Power Case Study Perth July 2015  

On the 7th of July we increased the size of the solar power Case Study by 25.9%. From 5.13kW to 6.46kW.

It was a dry July for most Perth sites with below average rainfall, but near average number of rain-days. Rainfall in coastal plain and hills sites recorded less than 80% of their normal July rainfall.

 

Solar Power Production

Average Daily Output: 15.36 kWh (units) per day

 

Highest Output

Thursday 16th Of July: 25.92 (units) kWh

 

Lowest Output

Thursday 2nd of July: 5.60 (units) kWh

 

Click here to view Solar Power Case Study 6.46 on the PVOutput website

From 5.13kW to 6.46kW

Adding solar panels Perth



Solar Power Case Study Perth June 2015

June Solar Power Case Study Perth 2015

 

It was the warmest June on record across the Perth metropolitan area in terms of day-time temperatures. The coolest day for June was on the 22nd and rainfall was well below average for the month.

The Perth Metro site recorded a total of 21 days with daily maximum temperatures at or above 20 °C, which is the equal highest number of such days on record for Perth.
Most weather stations broke their highest June mean temperature on record, whilst Perth Airport had its highest June mean temperature since 1983.

 

Solar Power Production

Average Daily Output: 14.71 kWh (units) per day

 

Highest Output

Tuesday 23rd of June: 19.46 (units) kWh

 

Lowest Output

Thursday 18th of June: 5.83 (units) kWh

 

Case Study 5.13 is now on the PVOutput Website

You can now view all the data on the PVOutput website. The analysis on PVOutput is impressive. Click here to view Solar Power Case Study 5.13 on PVOutput

Please Note: PVOutput is updated on a regular basis. The data showing during July 2015 includes the system upgrade to 6.46kW.

Solar Power Case Study Perth May 2015

May Solar Power Case Study Perth 2015

 

Rainfall in May was near average for most of the Perth metropolitan area, with a large proportion of the monthly rainfall recorded from the 16th to 18th as a result of a low pressure system and associated cold fronts. The highest daily rainfall registered in the Perth area for the month was 60.6 mm at both Bickley and Karragullen North on the 18th, and Bickley also recorded the highest monthly total in Perth with 118.0 mm. Perth Metro recorded 83.8 mm in May, which is close to average but the driest May for three years. This rainfall was recorded on only 4 rain days, which equals the lowest number of rain days in May at Perth Metro in 139 years of rainfall recording.

 

Solar Power Production

Average Daily Output: 16.33 kWh (units) per day

 

Highest Output

Sunday 6th of May: 20.89 (units) kWh

 

Lowest Output

Saturday 16th of May: 2.58 (units) kWh

Solar Power Case Study Perth April 2015

Solar Power Case Study Perth April 2015 

Rainfall was near average to above average across the Perth metropolitan area in April with most of the rainfall recorded in the second week of the month.

Sites across the Perth area saw seven consecutive rain days between the 7th and 13th due to a slow-moving low-pressure system and persistent cloud bands. The Perth metropolitan area had the longest wet spell in April for 35 years with seven consecutive days of rain. The first record was set in 1926 when Perth metropolitan area had 15 consecutive wet days from the 15th to the 29th of April.

Mean maximum temperatures for April were near average in Perth, although cooler than normal maxima was reported in the hills.

The 5th of April was the hottest day of the month for most weather stations in Perth.

Case Study 5.13 is now on the PVOutput Website

You can now view all the data from this Perth based case study via the PVOutput website. The analysis on PVOutput is impressive. Click here to view Solar Power Case Study 5.13 on PVOutput 

Solar Power Production

Average Daily Output: 18.24 kWh (units) per day

 

Highest Output

Sunday 5th of April: 25.46 (units) kWh

 

Lowest Output

Thursday 9th of April: 3.56 (units) kWh

Solar Power Case Study Perth March 2015

Solar Power Case Study Perth March 2015

The weather in March was average across much of the Perth metropolitan area. Most of the rainfall was recorded near the middle of the month.

The highest daily rainfall in the Perth area was 17.4 mm at Karnet on the 15th.

Ex-tropical cyclone Olwyn moved past Perth to the east during the middle of the month and produced light to moderate rainfall across Perth.

Ex-tropical cyclone Olwyn moved past Perth to the east during the middle of the month and produced light to moderate rainfall across the Perth area.

Solar Power Production

Average Daily Output: 24.18 kWh (units) per day

 

Highest Output

Thursday 5th of March: 31.64 (units) kWh

 

Lowest Output

Friday 13th of March: 8.91 (units) kWh

Solar Power Case Study Perth February 2015

Perth Solar Power Case Study February 2015

Across Western Australia the mean temperature (mean of maximum and minimum temperatures) was 30.39 °C, which is 2.3 °C above the long-term average, and the second hottest February on record for WA since comparable data commenced in 1910.

Averaged across the State, the mean maximum temperature was 3.05 ° C above the long-term average, which is the second highest mean maximum temperature on record for WA. For the Lower Southwest, the mean maximum was 2.71 °C above the long-term average, which is the fourth highest mean maximum temperature on record.

Wittenoom recorded a daily minimum temperature of 35.1 °C on the 21st, which is the highest minimum temperature on record in February in Australia, surpassing the previous national record of 35.0 °C set at Moomba Airport in South Australia on 17 February 2004.

Solar Power Production

Average Daily Output: 28.11 kWh (units) per day

 

Solar Power Case Study Perth January 2015

Perth Solar Power Case Study January 2015

Rainfall in January was mostly below average across the Perth metropolitan area with most suburbs recording no rainfall until the last few days of the month.

The dry spell ended with thunderstorms on the 29th of January ending 61 days of no rain (29 November 2014 - 29 January 2015) which made it the equal ninth longest dry spell in Perth since records commenced in 1876.

Perth Metropolitan area recorded a daily maximum temperature of 44.4 °C on the 5th, the third-highest January temperature in 119 years of record, and the highest for 24 years since 31 January 1991 when the record high temperature of 45.8 °C was recorded.

Solar Power Production

Average Daily Output: 29.11 kWh (units) per day

 

How does a solar power systems perform in a storm?  

This screenshot is taken from SMA's free Sunny Explorer software.

29th of January - This was the first of the storms that came over Perth during that week. 

Solar Power Production during Perth storm

The peak production for the day was 4.81 kW at 13:35 pm. 

During the heaviest period of the storm, solar power output was down to 432 watts.

At 13:45 pm the system had reduced output down to 4.34 kW, a 9.7% drop in 10 minutes. Most likely caused by the heat of the sun after the clouds had passed.

Case Study 5.13 finished the day with a total production of 21.24 kWh - 27% below the average for this month.

Solar Power Case Study Perth December 2014

Solar Power Case Study Perth December 2014

Perth had a very dry and warm month.

Mean maximum temperatures were above average across large parts of WA in December with mean maximum temperatures 3 °C to 4 °C above average in the western southern interior.

Mean minimum temperatures were above average across much of the northern, central, and eastern WA, with a couple of sites in the Kimberley registering their highest mean minimum temperatures on record.

Rainfall in December 2014 was below to very much below average in parts of western and central WA. Bickley (closest weather station to the solar power installation) recorded 0.2 millimetres of rain for the 6th of December. It's believed to have evaporated 0.2 seconds later. 

A fire at Whiteman Park in the northern Perth suburbs burnt 367 hectares of bushland on the 14th of December.

A bushfire destroyed a home and three sheds in Toodyay, about 85 kilometres north-east of Perth, on the 30th of December.

Solar Power Production

Average Daily Output: 29.89 kWh (units) per day

 

SMA Sunny Explorer Data Download 

Solar power production was down on the 4th day of December. Western Power had shut down the grid to conduct maintenance. Solar electricity generated on that day was 5.09 kWh or 5.09 Units. The chart below (downloaded on SMA's free Sunny Explorer software) shows when the grid was shut down. Power was restored to the grid just after 4pm.

Sunny Explorer Perth solar power case study December 2014

Solar Power Case Study Perth November 2014

Solar-power-case-study-November-2014

The mean minimum temperature in November was well above the long-term average and ranked as the equal ninth warmest November since comparable records commenced in 1910.

Rainfall for November was near average to above average over much of the State.

Solar Power Production

Average Daily Output: 28.48 kWh (units) per day

Solar Power Case Study Perth October 2014

Solar-Power-Case-Study-October-2014

October was the warmest October on record for both mean maximum temperature and mean minimum temperature since records commenced in 1910.

Averaged across the state, the mean maximum temperature in October 2014 was 2.9 °C above the long-term average and ranked as the warmest October on record.

Widespread severe thunderstorms occurred along a surface trough through southern and central parts of the SWLD on the 22nd. Hail larger than 20 cent coins (3 cm) and flash flooding were reported in the proximity of Boyup Brook in the South West district.

Solar Power Production

Average Daily Output: 27.16 kWh (units) per day

Solar Power Case Study Perth September 2014

Solar-Power-Case-Study-September-2014

After a very dry start to the month, a number of rainfall events during the middle and latter parts returned rainfall totals to near average. Monthly rainfall totals ranged from about 50 mm to 80 mm on the islands and coastal plain, to over 140 mm in the hills.

Across the Perth metropolitan area, mean daily maximum temperatures were 1 °C to 2 °C above the long-term average, and a number of sites broke their highest mean maximum temperature for September. Perth Metropolitan area recorded its second warmest September in 115 years of record, behind the 22.6 °C in September 1987.

Solar Power Production

Average Daily Output: 20.77 kWh (units) per day 

 

Solar Power Case Study Perth August 2014

Solar Power Case Study Perth August 2014

Temperatures across the Perth metropolitan area were generally 2 to 3 °C above the long-term average, and all sites broke their previous record for the highest mean maximum temperature in August. Rottnest Island recorded its equal warmest August since records commenced in 1880. On the 29th and 30th of August Mundaring recorded a daily total of 70.8 mm the highest daily rainfall of the month in the Perth area, and the second wettest August day at Mundaring in 104 years of record.

Perth Metro recorded a mean maximum temperature of 21.6 °C, the warmest August in 117 years of record and exceeding the previous record by 1.2 °C, which was set in August 2013. Perth Metro recorded 21 days with maxima at or above 20 °C, which is the highest number of such days in August on record for the site, exceeding its previous record of 17 days set on August last year.

 

Solar Power Production Comparison

August 2012: 15.35 kWh average per day

August 2013: 15.10 kWh average per day

August 2014: 17.4 kWh average per day

 

Solar Panel Shading

This solar power system has some shading from the east and the west. To offset the shading, we have the SMA’s OptiTrac switched on. OptiTrac is a feature of SMA inverters that reduces the effects of shading on electricity generation.

Solar Power Case Study Perth July 2014

Solar Power Case Study July 2014

The weather for July was close to the standard for this time of year.

Data from the SMA Sunny Boy 5000TL Inverter

All solar power data is downloaded (via Bluetooth) using the SMA Sunny Explorer software.

Looking back on July, the solar power system produced an average of 13.7 kWh (units) per day.

Suntech Solar Panel Inspection

The solar panels were inspected at the start of July. The solar panels are in excellent condition and the winter rains have cleaned the solar panels.

Solar Power Case Study Perth June 2014

Solar Power Case study June 2014

 

Perth in June: Below average rainfall with cold nights.

June was a relatively dry month for most sites in the Perth metropolitan area with rainfall totals between 50% and 80% of the average. Rainfall was near 160 mm in the hills.
A cold front brought rainfall across Perth from the 17th to 22nd, with moderate to heavy falls occurring on the 17th and 18th. A daily total rainfall of 71.8 mm at Bickley on the 18th was the highest daily fall in the metropolitan area for the month and the highest daily rainfall in June at Bickley for 26 years, since 83.4 mm was recorded on 1 June 1988.

The solar power system produced an average of 14.25kWh per day (units).

Solar Power Case Study Perth May 2014

Solar Power Case Study Perth May 2014

Rainfall and rain days were above the May average due to frequent cold frontal passages and mean minimum temperatures were generally 1 to 2 °C warmer than normal. In contrast, maximum temperatures were mostly close to normal.

Wettest May at Bickley (220.0 mm) for 28 years, since May 1988 (247.4 mm); the highest number of rain days (25) in May on record, exceeding 21 rain days in May 1973

 

May recorded low mean daily sunshine of 4.5 hours. This is the lowest daily sunshine hours recorded in 30 years. The record low in May was 3.4 hours per day in 1905.

 

The solar panels produced an average of 12.38 kWh (Units) per day - Units are used on Synergy accounts.

 

Solar Power Case Study Perth April 2014

Solar Power case Study Perth April 2014

Longest April dry spell for 32 years at Perth Metro (23 days of no rainfall between 2nd and 24th) equal second longest April hot spell with temperature at or above 30 °C at Perth Metro (six days from 8th to 13th)

 

Solar Power Case Study Perth March 2014

Solar Power Case Study Perth March 2014

Rainfall: near average for most sites
Maximum temperature: near average to above average
Minimum temperature: near average to above average

 

Solar Power Case Study Perth February 2014

Solar Power Case Study Perth FEB 2014

Rainfall: no rainfall for most sites
Maximum temperature: above average for most sites
Minimum temperature: near average

 

Solar Power Case Study Perth January 2014

Solar Power Case Study Perth Jan 2014

Rainfall: very much below average
Maximum temperature: above average for most sites
Minimum temperature: near average

A bush fire started in Parkerville, about 30km east of Perth, at approximately 11 am on the 12th and affected the townships of Parkerville, Stoneville, and Mount Helena, in the shire of Mundaring, . A total of 52 houses were destroyed.

Solar Power Case Study Perth December 2013

Solar Power Case Study Perth Dec 2013

Notes: Energy production is very low on the 4th and 11th day. Western Power (company in charge of the poles and wires on the grid) were replacing power poles in the area.

When the grid is shut down, a grid tied inverter (solar power system connected to the grid) has to shut down - it's a safety thing. In short, if the grid is down, you are unable to produce electricity from your solar power system. The SMA inverter automatically detects when the grid is switched off. The inverter shuts off in less than a second, stopping any power from the solar panels feeding house loads or exporting electricity to the grid. When the grid comes back on, the inverter detects this and switches back on.   

SMA Sunny Explorer

When using SMA's free Sunny Explorer Software, you can download energy production data (and a lot more) from your solar power system. Whether you want detailed (every 5 minutes) information or once a month data, the SMA Sunny Explorer logs the information.  

December 4th 2013 - power outage

December 4th 2013 SMA data

December 11th 2013 - power outage

December 11th 2013 SMA data

Production was starting to rise (9am) when the grid was shut down. When it came back on (5pm) the SMA inverter came back on.

Rainfall: below average
Maximum temperature: very much above average
Minimum temperature: near average

 

Solar Power Case Study Perth November 2013

Solar Power Case Study Perth Nov 2013

Notes: Western Power shut down power to the grid on the 8th of November to continued grid maintenance and replace power poles. See December 2013 for a detailed example of reduced power production. 

Rainfall: below average
Maximum temperature: very much above average, second highest at Perth Metro
Minimum temperature: very much above average, warmest on record for some sites

 

Solar Power Case Study Perth October 2013

Solar Power Case Study Perth Oct 2013

Notes: Western Power shut down power to work on the grid on October the 2nd and October the 30th. See December 2013 charts for detailed example of the reduced production on these days.

Rainfall: near average
Maximum temperature: near average to above average
Minimum temperature: near average for most sites

 

Solar Power Case Study Perth September 2013

Solar Power Case Study Perth Sept 2013

Rainfall: wettest September on record for a number of sites
Maximum temperature: near average
Minimum temperature: warmest September on record for most sites

 

Solar Power Case Study Perth August 2013

Solar Power Case Study Perth August 2013

Notes: Western Power shut down the grid for maintenance on the 30th of August.

Western Power have been replacing power poles in the area. When the grid was shut down, the solar power system shut down. When the power to the grid was restored, the SMA Sunny Boy Inverter automatically turned back on.

Rainfall: above average
Maximum temperature: above average
Minimum temperature: warmest August on record for a number of sites

 

Solar Power Case Study Perth July 2013

Solar Power Case Study Perth July 2013

Rainfall: near average for most sites
Maximum temperature: near average
Minimum temperature: below average on the coastal plain

Data downloaded using SMA Sunny Explorer software. All SMA inverters have Bluetooth built in. Using the free SMA Sunny Explorer software, you can download data from the inverter to your Windows computer (software not available for MAC computers in 2013).

A cold front moved through Perth on the 16th causing damaging wind gusts and heavy rainfall. Thousands of homes in the Perth metropolitan area were without power during the storm.

Solar Power Case Study Perth June 2013

Solar Power Case Study Perth June 2013

Rainfall: Driest June on record for several sites
Maximum temperature: near average for most sites
Minimum temperature: near average to below average

It is good to see how a solar power system works in winter. Unfortunately, June 2013 was not a typical winter month in Perth.

Advantages: More solar power = better financial returns and less fossil fuel based power.

Disadvantages: We need the rain, as any farmer in the wheatbelt will tell you.

 

Solar Power Case Study Perth May 2013

Solar Power Case Study Perth May 2013

The grid was shut down on the 2nd of May for grid maintenance. The SMA inverter shuts down automatically whenever the grid is down. The SMA Sunny Explorer chart shows how the shut down reduced production.

May 2nd 2013 SMA data 

The grid was shut down just after 8am and came back on around 2pm. 

Rainfall: above average
Maximum temperature: near average
Minimum temperature: near average

 

Solar Power Case Study Perth April 2013

Solar Power Case Study Perth April 2013

Notes: This is a great example of how heavy cloud reduces the electricity generated by the solar power system. Below is a detailed chart taken from the SMA Sunny Explorer Software on April 12th. The solar energy generated for the 12th of April was only 5.8 kWh (units). 1 kWh = 1 Unit on a Synergy power bill.

April 12th 2013 SMA data

The peak for the day was 1.18kW at 9.30am

Rainfall: near average to below average
Maximum temperature: very much above average; warmest on record for several sites
Minimum temperature: warmest on record for most sites

 

Solar Power Case Study Perth March 2013

Solar Power Case Study Perth March 2013

Grid was down on the 23rd of March - Western Power maintenance.

Rainfall: above average
Maximum temperature: below average
Minimum temperature: near average

Solar Power Case Study Perth February 2013

Solar Power Case Study Perth Feb 2013

Western Power was doing maintenance on the local grid on the 19th. No grid = No Solar.

Rainfall: below average
Maximum temperature: Very much above average
Minimum temperature: average to above average

 

Solar Power Case Study Perth January 2013

Solar Power Case Study Perth Jan 2013

Rainfall: near average to above average
Maximum temperature: near average
Minimum temperature: above average

 

Solar Power Case Study Perth December 2012

Solar Power Case Study Perth Dec 2012

Rainfall: above average; wettest on record at some sites
Maximum temperature: Above average; 3rd hottest December for Perth Metro
Minimum temperature: Above average

 

Solar Power Case Study Perth November 2012

Solar Power Case Study Perth Nov 2012

No Grid = No Solar Power

Western Power were doing maintenance on the grid - 2nd and 15th of November

Rainfall: very much above average across the Perth area, and wettest on record at some sites.
Maximum temperature: near average
Minimum temperature: near average

 

Solar Power Case Study Perth October 2012

Solar Power Case Study Perth Oct 2012

The Perfect Day was on October 26th.. 

October 26th 2012 SMA Data

Image taken from SMA Sunny Explorer software - it doesn't get much better than this.

Rainfall: very much below average
Maximum temperature: highest on record at a number of sites
Minimum temperature: above average.

 

Solar Power Case Study Perth September 2012

Solar Power Case Study Perth Sept 2012

Power outage on the 1st of September - Western Power was working on the local grid.

Rainfall: near average to above average
Maximum temperature: above average
Minimum temperature: near average

 

Solar Power Case Study Perth August 2012

Solar Power Case Study Perth August 2012

Western Power shut down the grid on the 16th and 24th of August to conduct maintenance in the area.

Rainfall: near average to below average
Maximum temperature: average to above average
Minimum temperature: near average

 

Solar Power Case Study Perth July 2012

Solar Power Case Study Perth July 2012

Rainfall: driest July on record for most sites
Maximum temperature: above average for most sites, with record highs at some sites
Minimum temperature: very much below average for most sites, with record lows at some sites

 

Solar Power Case Study Perth June 2012

Solar Power Case Study Perth June 2012

We are often asked how a solar power system performs during heavy rain and cloud. The chart below shows one such day - June 11th.

June 11th 2012 SMA Data

Peak energy production was 2.48kW at 9am with a total of only 3.17kWh produced for the whole day.

Average Daily production for the month of June 2012 was 10.95 kWh

Rainfall: Near average at most sites
Maximum temperature: Near average
Minimum temperature: Above average at most sites

 

Solar Power Case Study Perth May 2012

Solar Power Case Study Perth May 2012

Rainfall: Below to very much below average at most sites
Maximum temperature: Near average to above average at some sites
Minimum temperature: Near average

 

Solar Power Case Study Perth April 2012

Solar Power Case Study Perth April 2012

Rainfall: Near average to above average
Maximum temperature: Near average to above average
Minimum temperature: Near average to above average

 

Solar Power Case Study Perth March 2012

Solar Power Case Study Perth March 2012

Rainfall: Very much below average
Maximum temperature: Very much above average
Minimum temperature: Near average

 

Solar Power Case Study Perth February 2012

Solar Power Case Study Perth Feb 2012

Rainfall: Above average for most sites
Maximum temperature: Near average for most sites, below average in the hills
Minimum temperature: Near average for most sites

 

Solar Power Case Study Perth January 2012

Solar Power Case Study Perth Jan 2012

Rainfall: Mostly average to above average
Maximum temperature: Above average for most sites
Minimum temperature: Highest on record for most sites

 

Solar Power Case Study Perth December 2011

Solar Power Case Study Perth Dec 2011

Rainfall: Wettest on record for several sites, 3rd wettest for Perth Metro
Maximum temperature: Average to above average
Minimum temperature: Average to above average; highest on record for a number of sites

 

Solar Power Case Study Perth November 2011

Solar Power Case Study Perth Nov 2011

Rainfall: Average to above average.
Maximum temperature: Average for most sites but below average in the hills.
Minimum temperature: Above average for most sites.

 

Solar Power Case Study Perth October 2011

Solar Power Case Study Perth Oct 2011

Rainfall: Average to above average.
Maximum temperature: Above average for most sites and 3rd warmest on record for Perth Metro.
Minimum temperature: Above average.

 

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