What is the average daily production of solar power

If there is an issue with one of the panels on the second string this could be bringing the whole performance down. If you contact your installer they should be able to come out and service your system which is recommended every few years and identify any possible issues. We live in Adelaide and have had a 3.

We are not seeing the cost saving results that we expected. Is there anything that we are doing wrong? The last billing period of 3 months we have only been producing 3 KWH per day according to our bill — but our solar is reading an average of 9kwh per day.

The difference in your meter reading and energy bill is because residents of South Australia are on a net metering set up. There is not way to increase the energy you export unless you become more energy efficient e. There are lots of energy saving website out there that will give you great advice. Mate,I,m led to believe that people around the place who have installed lots of panels are cleaning up on the Govervment feed in tariff.

And as a consequence the Government have decreed that in such cases they,re feed in tarrif will be reduced. My panels get me to pretty much a break even point. If I go over the top and say,cover myself in blankets rather than use the air con while watching T,V.

Cheers Phil. Thanks for your comment. Which Feed-in Tariff are you referring to? We have 4 children under 12 and 2 adults. Lots of questions! One of our brokers would be happy to assist you and introduce you to some other options available to you in Lancefield. Give us a call on 78 72 73 or fill out the form to the right to receive a free and instant comparison of solar quotes from installers in your area.

Hope this is helpful. I still havent reduced my electricity bill to zero yet. I am wondering if it is possible to utilise the 2nd set of unused DC input jacks to connect extra solar panels on either the northern or even eastern side of the roof, to increase the KW produced early in the day and therefore the kwh per day? Currently in cloudless conditions, in the morinings each inverter is producing about watts. At around 11am they produce w, then at midday till about 2.

When summer is upon us these times will obviously increase. Are there limitations on the system, or could I damage the system? You can read more about inverter efficiency in this article: Types of Inverter Efficiency. Just what the Solar Doctor ordered! Qld has just reduced its FIT from 44 cents to 8 cents. I am building a new house but missed out on the cutoff to retain the 44 cents FIT. I live in Brisbane. At present I have a 2. The article linked there also has an indicative return on investment calculator, so you can get an idea of what payback periods are like for solar systems in Queensland now.

Looking for advice on what system is best for us…. I am home in the day which I was told is great as this is the best time cram our electricity usage into. I know it will reduce our bills but will this be enough to see a difference?? Understanding all of this seems very confusing… please help us to understand this a bit better.. So generally we advise people not to go this route, as having an oversized inverter can compromise overall system yields.

Run things while the sun is shining as much as possible! Solar Choice has a Perth Solar System return-on-investment calculator that will give you some idea how you might benefit from a system, but please keep in mind that the figures are purely indicative, and real returns will depend on a number of factors, such as weather, your electricity consumption patterns, and the price of electricity.

I live in the western suburbs of Adelaide in a single storey house. I have calculated that my daily average usage is approx We have been advised that we need a 5Kw system comprising 19 — 21 panels depending on each quote and using different panels some panels are w and some are w. The house has a north face aspect and due to asthetics we have decided that the panels would be installed on the western side of the roof and every company that has quoted agrees, this is due in part to a double storey home on the esaster side of our house that has potential shading impacts on my roof.

That is indeed sound advice if the house next door is going to be casting a shadow on your north-facing roof. About the W vs W panels, there is no substantial difference. The figure to watch out for in the end is the cost per watt of the system, not the size of the individual panels, provided they all fit on your roof. Solar Choice does give free advice regarding solar panel installations. Start a dialogue with us by requesting a free, instant Solar Quote Comparison that will give you a broad look at the market in Adelaide.

Great website with so much useful info. I have a new 4. The uptime is hours with only Should I be concerned? By my rough calculations, i am averaging 2. What would you suggest? Not sure what you mean by uptime, exactly, but an average of 2.

You should be getting about 18kWh a day in Cairns from a 4. What orientation is the solar array at? Hi, Is there an expert body or person from who I can get an impartial opinion as to if some individual cells in a panel are cracked. I can see physical random cracks through several individual cells but the supply company says this is a cosmetic non issue and that the system total output as recorded in the inverter proves that the system efficiency is acceptable.

Thanks, Geoff. If the glass on a panel is cracked this could potentially pose a short or long-term issue, as moisture may leak in and affect the silicon cells themselves, although it seems that in your case this is not happening right now. Your panels and system should, however, most likely have a warranty that protects them against faults such as this. Contact your installer with regards to this, as they should be able to help you out—provided that a warranty does indeed exist.

All quality products come with a warranty and it is a concern if they do not. You might want to contact the Clean Energy Council about this issue. They are the independent body that regulates all things to do with solar power—including components and installers. They might be able to help you out. Hi, I have a quote for a 3kW system with a 5kW inverter, reading the many comments from others I am wondering if the 5kW inverter is an overkill?

Read more about inverter efficiency. Thank You. The most you can hope for is a big chunk to be taken out by avoiding the purchase of electricity from the grid—you can only do this during the daytime, as this is the only time your system will be producing power.

Perhaps you typed the number of panels incorrectly? Are these figures correct? I hope this does help. Only then will you be able to figure out what size system you need. As a rough estimate, however, the average household in a state with no feed-in tariff would benefit most from 3kW , 4kW, or 5kW solar systems. Our service is free and impartial and we do our due diligence to ensure the installer in our network are reputable and do a quality job.

If I get a 3kw system can I put half the panels facing east and the other half west? Will this mean that only half will produce power in the morning and the other half in the afternoon as 1 half will be facing away from the sun? If this can be done will it be more efficient splitting the panels or having them all on the side that faces slightly more north?

Thanks for the comment. If you are, it would probably be safe to split the array. If someone is home during the day using power, it make sense to split the array. If you expect to use more power only in the afternoon, you should aim to have most of the panels on the west-facing roof. In the meantime, you might also want to read this article: East vs west orientation for solar panels.

Hi, wie are Interested to get a 2kw System to Cover our aircondition use. We were under the impression that you use your own production up first for free and then buy as required. If you are in a state with a Solar Feed-in Tariff , however, then electricity retailers are required to purchase your power at a premium rate. If there is no Feed-in Tariff on offer where you are, they may not have to pay you anything, or possibly only very little.

Also want it to record all solar output and be able to produce graphs, tables, etc. I live in Cairns. They probably should be, as people are much more likely to watch and change their usage patterns if they know their system production and power consumption statistics in real time. The panels face west on a roof of 30 degrees. The system has never produced more than w. The system has produced an average of 7. Do you have any ideas?

There are a number of factors that could potentially be affecting the performance of your system. First of all, in order to understand what sort of output you should be expecting, it would be helpful to know what the total rated capacity of your solar panel array is—there are different models of XH solar panels, each with a different capacity.

I assume they are approximately W, as this is a common capacity for residential solar panels. If they are indeed W panels, your array capacity will sit at around 3. This would be about 1. I cannot find the efficiency curve for the Eversol T, but it may be the case that it is being underpowered, which could result in a disproportionate loss of efficiency. Another problem could be the fact that your panels are west-facing. The ideal scenario is to have your panels facing due north, but it is not uncommon to put panels on an eastern or western roof if a north-facing roof does not exist.

Another issue could be a fault with the panels. XH are not a tier-1 manufacturer of solar panels. If there is a fault with even 1 of your panels i. Similar to the effect that shading has on panels. If XH does not have an office in Australia and you do find a problem with one of the panels, you may have to send it back to China for servicing, or it may take some time for them to get you a new one.

Alternatively, you can get in touch with the company that installed your system—if it was less than 5 years ago, you will likely have a warranty that is still valid with them. There could be other reasons your system is not performing as it should, but these are likely culprits for the unexpectedly low yields of your system.

Best of luck with it, and hope you found this helpful. Thank you for your comments. My system comprises 16 x w panels facing west on a 23 degree roof with no shading. The system comprises 2 strings of 8. Both strings and all panels have been tested and I have been told the voltage in panels and strings are within spec.

My brother also located in Melbourne has the exact same system. I have had the inverter replaced with one of the same type, but it made no difference. In the winter this number will be lower and in the summer higher.

Just a couple of questions: Is your inverter properly sized to suit your panel array? Thanks for the comments. The eversol T is rated at w specs can be found at ever-sol. If this is so, my brother would have to have a far superior system but that is not the case. Any assisstance would be greatly appreciated. I retract my earlier statement that your system is not performing very far below what it should be, but whatever the problem is, it is not likely due to the tilt angle or orientation of your roof.

Sorry about the confusion. I know you said you had someone check out the system, but have you had the individual panels tested? One of the 2 strings could be dragging down the output of your system, potentially due to a flaw in one of the panels.

I have been told that the 2 strings are very close in voltage. I donot know if each panel has been tested, but wouldnt this show up on one of the strings if a panel is faulty? I have been in contact with a number of people including the installer and gren energy council and have been told my system appears to be poviding reasonable daily kwh.

I would appreciate any further advice. This one has proven to be a tricky issue. I presume the latter is what they mean. Power tolerance figures indicate how much actual power output could potentially vary relative to the nominal capacity of the panel.

Hoping that you get it figured out. Thanks for your assistance. I have increased my system to 4. I guess the system is what it is and the reason for my brothers system producing a lot more kwh will remain a mystery. Just one last thing, do you know of any company or person in melbourne that could do a complete test of my system?

You may have to pay an installer to do the test. Check with a few before you reach a final decision, though. Thanks again for your comments. I just have one final question i think.

I have noticed that on cloudy days my inverter is producing lets say 1. When the sun comes out, this will increase rapidly to approx 3. If the sun stays out, the production will slowly reduce and settle around 3.

It might sounds strange but solar panels prefer cold but sunny conditions. Hi — My Daily consumption is What would be the expected rate of return on this investment Brisbane based.

AGL have a tariff of 52c till What is the industy average of Daytime Vs Night time usage. It would be nice if I could get a proper breakdown on this. Is there a meter that can record and store sunlight duration and night time power consumption? This will get a better idea of available export. Is my calc in the ball park? Looks like it is better to keep the money in the home loan. Obviously I have not included tariff increases in my calcs. Your feedback please.

What are the brands of the panels and inverter that the quoted system will be using? If you were in a state with a feed-in tariff incentive that is lower than the cost of retail electricity such as NSW, it would make more sense for you to try to self-consume as much of your solar power as possible, as this would save you more money than exporting.

How did you arrive at your conclusion that it would be 10? The payback period would only be that long if you were in a state without a significant feed-in reward and if you did not closely monitor and manage the timing of your electricity use.

This is a good thing to watch out for, though. You could consider the PowerRouter , but it is arguable whether the extra cost is worth the difference in payback time for the average household. We look forward to hearing from you, and hope this response was helpful! Hi I was wondering if u could tell me, How do I know that all my panels are working to is potential or is working at all. Ive got a Samil Power 3. How can I check this on my inverter or wherever. Sorry for the stupid question, but I am quite ignorant to the facts of Solar power and its workings.

Thanks for ur information. The fact is that unless you have micro-inverters i. Do you know how many strings your panel array is divided into? You can see the stats for Samil Power 3. Hi Hayley. In the morning and evening, the sunshine is more diffuse on any given roof or solar panel; around midday it is highly concentrated.

In reality, Sydney only gets about 4 actually more like 3. Since Darwin gets about 4. When you talk about efficiency, it's important to distinguish between panel efficiency or conversion efficiency , cell efficiency, and system efficiency.

Which is provided by the state government called the Thermoregulatory Dysfunction Energy Subsidy Scheme. Good morning,could you please help us with some advice. We have a solar system 3kw with a german converter. We thought having 16 panels would have lowered the bill. Thank you any help would be appreciated. How much were your bills prior to installing your system?

And have you contacted your installer to let them know that your system is not meeting your expectations? Hi thanks for the reply, i have no shading issues the voltage output is vmp Growatt 4. Your panels those not yet connected, assuming they are all fed into only one side of the MPPT input :. As you can see, both configurations are well within the acceptable ranges on both counts. A very interesting site, which also demonstrates there are quite a number of posters that have a good knowledge of solar power.

Can anyone give me a clue as to the cost of a system that would provide a break even situation for us so that we can recover the cost over a period of years. Your area receives an annual average of 6 peak sun hours per day—i. At current prices, this could run you anywhere between 18 and 22 thousand dollars.

This means that you will only be paid 7c for every unit that you feed into the grid, so it makes more financial sense for you to use the power directly instead. Sizing a system to make it worth your while would require a bit of analysis regarding when your demand is highest e. It might even be worth your while to invest in energy storage in the form of batteries.

Our automatic quote comparisons do not include prices for 7kW systems, but our brokers can tailor a quote comparison that suits your needs. To initiate a dialogue, either fill out the form on the right, or email sales solarchoice.

Our services are free and impartial. Hi again id like to know what the best combination of panels and strings,i have a growatt 4. What is the voltage output for the panels that you have? Hi i was wondering if anyone could tell me the best tilt angle for burpengary which is about 30ks north of brisbane kind regards mark.

The rule of thumb for systems outside the tropics is to tilt the panels at the same degree as the latitude. Solar panels in the Brisbane area should be fine at about 30 degrees. I have a 3kw system on flat roof 10deg facing north with no shading in Melbourne.

The system produces peak outputs of around 2. Given we are now into summer with sun angles almost straight overhead at mid day I would have thought the system would be hitting closer to 3kw peak rating. Is it likely I have a panel not working or is this just typical heat derating? Appreciate your comment. Since all systems have inefficiencies, it is usually more useful to look at the overall daily output of your system than the instantaneous output.

Taking inefficiencies heat derating, inverter efficiency, dirt on panels, wiring, etc 3kW system in Melbourne can be expected to produce about Some people do solar system output calculations without taking into account inefficiencies—e. So for the most part, it sounds like your system is doing what it should do. I get around 5. I think this is quite effecient?

Appreciate your comment? I am located in melbourne. Thank you for commenting. In November in Melbourne you should be able to expect about 6.

What brand of panels have you got installed, and what is the heat derating coefficient? We live on the Gold coast and had our system sine ce Apr, we have 10kW of solar panels and a 10kw inverter, on a an overcast day we will make kW, our best day to date is 62kwW.

How do out figures compare, we have mostly north facing panels, some on the southern roof we are considering tilting these up? I would be interested to hear your thoughts.

In any case, it sounds like your system is performing pretty well. The annual average for sun hours around the Gold Coast is 5. Multiply this by 10 and you have 54kWh per day on average across the year with a 10kW system. In relation to your question about system prices: The variation in the market is due to a number of factors—quality of components, installer overhead, remoteness of the location of the system to be installed travel costs may be incurred , whether the system is a ground-mounted solar array or roof-mounted, etc.

This is admittedly a rare case possibly unique in Australia , but we have witnessed the price of solar power come down dramatically in the past few years, so it does not come as a total surprise. Yesterday my system generated 17kwh; So I assume, the solar also contributed approx 3. Does this make sense? Thx Raymond. You used the 3. Only excess electricity produced by your panels when you are not using it is exported.

Hi — find this a fantastic webiste. Am keen to get some feedback and provide some information for your stats as well. My 3KW system was installed yesterday in Adelaide. Also have the smart meter installed by ETSA. North East facing — 30 Deg.

Any idea? Is this an average across the year? So in general should I be expecting in summer say 15 — 16 kwh per day and in the winter 8 — 10 kwh per day; such that the average across the year is How effective are solar panels?

Can I store the electricity my solar panels generate? How do I check that my solar panels are working efficiently? Solar panel output per day Work out how much electricity—measured in kilowatt hours kWh —your panels would produce each day by using this formula: Size of one solar panel in square metres x 1, That figure x Efficiency of one solar panel percentage as a decimal That figure x Number of sun hours in your area each day Divide by 1, Read more on efficiency below.

Example Panel is 1. Solar panel output per month For a monthly total, calculate the daily figure then multiply it by 1. Solar panel output per square metre The most popular domestic solar panel system is 4 kW. This has 16 panels, with each one: around 1. Rated capacity is explained below. A 1 kW system of solar panels can generate around kWh of electricity each year. Most domestic solar panel systems have a capacity of between 1 kW and 4 kW. Efficiency How much sunlight solar panels can turn into electricity.

Materials What a panel is made of can also affect its efficiency. Shade Your roof must be free from shadows and obstacles e. Your location Not all areas of the UK get the same amount of sunlight. Although it is primarily designed to calculate solar electricity production for homes it is equally as useful for calculating solar power output for solar panels for boats, RVs and caravans because it tells you how much electricity is produced per kilowatt 1, watts.

If you are considering smaller solar panels you can just divide the output to work out how much power a specific solar panel will produce. Roof estimate for:. There are several factors that affect the amount of power that will be produced by a solar panel but it is useful for analysis to group them into two categories being:.

The most important feature of a solar panel that affects the amount of power it produces is the wattage of the solar panel. The peak wattage of a solar panel refers to the amount of DC power it produces at standard test conditions.

Standard test conditions are when megajoules of solar radiation per square meter fall on the panel and the cell temperature of the solar panel is 25 degrees Celsius 77 degrees Fahrenheit. Solar panels are made by joining a number of solar cells together in series. Generally speaking, residential solar panels available in will either fall in the range of watts and will contain 60 solar cells joined together, or they will fall into the range of watts and comprise 72 cells joined together.

Obviously, the higher that wattage of the solar panel the more electricity it will produce given a fixed amount of access to solar irradiation. See this related article that explains solar panel efficiency. Here is a map showing the average daily electricity production from 1kW of peak DC solar panels installed in each state of the United States. If we take California as an example, the map shows that on average 1 kW of DC peak capacity of solar panels produces 4.

From the example of a standard residential polycrystalline solar panel we used above, we know that if one watt solar panel is You can use the table of solar power production per kW for each state above to do the same math for your state.

Most solar panels used in home solar systems in are either made up of monocrystalline or polycrystalline solar cells. You can notice on each panel the smaller squares within the larger panel. Each of these is a solar cell and they are joined in series such that together they output the electrical characteristics of the panel. The meaning and importance of solar panel efficiency are often misunderstood by consumers evaluating solar and it is a misunderstanding that is sometimes exploited by makers of premium panels.

The take-home point to remember is that solar panel efficiency is taken into account when rating the wattage and output of a panel and so, theoretically, if all other solar panel characteristics are the same, a watt panel with a less efficient cell will produce the same amount of power in the same conditions as another watt panel with more efficient panels.

Some manufacturers of high-efficiency panels make outlandish claims about their panels producing far more power than standard panels of the same wattage but such claims are usually exaggerated in an attempt to justify very high module prices.

The reverse of this question is obviously how many square feet of roof space do I need to install enough solar panels to produce enough energy to zero out my electricity bill. This is really the question where solar panel efficiency becomes most relevant. As I have already said above efficiency is already considered before a solar panel is rated at a specific number of watts so if you buy or are faced with the choice of buying two different solar systems each of 6kW then if all other things are equal they will produce the same amount of power each year.

However, more efficient solar panels could be smaller and produce more electricity per square foot. There are two ways to work out solar power production per square foot. The first is to look at the peak possible instantaneous solar power production per square foot for a particular solar panel. When working out the annual electricity produced by solar panels per foot, we go away from looking at just the characteristics of the panel and need to look at the climatic conditions in which the panel is being installed.

For now, we will assume the installations are on a perfect south-facing roof with an optimal tilt angle given the latitude at which the panel is being installed. However, if you want to look at the effect on power production of installing solar panels at a sub-optimal azimuth or tilt angle then this article will help you. However, even eliminating the variance associated with different roofs to answer this question we still need to consider the climatic conditions of the location in which the solar panel is to be installed because this will affect how much sun the panel gets.