So How Many Solar Panels Do You Really Need To Get 1000 Kwh Per Month
How much power does Chris’s 10kW solar power system in Adelaide produce?
If your goal is to produce 1,000 kWh per month, then truly you must produce 1,250 kWh per month to allow for loss in output efficiency.
Remember, if you are receiving an average of four hours of usable sunshine per day and your solar panel is rated at 250 watts of power, then you will need forty panels to reliably generate 1,000 kWh per month.
An average residential solar panel size today is about five and a half feet by three feet.
But the number of panels and consequent space needed can vary depending upon whether you select lower-efficiency economy panels or high-efficiency premium panels.
Consider this table when trying to figure out how many solar panels you can put on your roof:
So go out and take a look at your roof and consider the sunlight falling on it. Think about the size and placement of solar panels. Do a cost analysis of the savings you will experience from creating your own clean, renewable energy.
Read our article about available solar power incentives and rebates that might make financing your savings attractive now.
How Long Will A 10kw Pv System Last
Usually, a 10kW solar system lasts up to 30 years. Depending on the level of maintenance being carried out, solar panels, inverters, and the other system components will outlast their warranty years.
It is recommended that you perform overall maintenance checks at least twice a year. Cleaning solar panels, checking AC and DC cables, and inspecting the inverter should be done regularly to help prolong the solar PV systems life span.
Few Things About Solar Panel Output Efficiency
Solar panel type and quality make a significant difference in terms of solar output and efficiency. Not all solar panels are the same.
For instance, monocrystalline photovoltaic solar panels are known to be the most efficient solar panels on the market, but also the most expensive.
Their two main advantages over the other types of solar panels such as polycrystalline or thin film panels is that 1) they absorb more sunlight than conventional cells and their output efficiency is not affected that much by temperature and 2) they occupy less space. These are an ideal option if you do not have enough roof space for standard panels.
On the other hand, polycrystalline panels are cheaper, they are less efficient and therefore occupy more space, but offer a better return on investment than monocrystalline panels.
Because of these wide differences in quality and efficiency, its up to you to decide which solar panels are right for your home.
The main takeaway is that, the more efficient the panels are, the more power they can produce, and the fewer photovoltaic panels you will need on your roof to get the same energy output as you would get with polycrystalline or thin film solar panels.
Overall, if money is not an issue, monocrystalline panels are the best option.
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How Much Energy Will A 10kw Solar Power System Produce
The graph above shows an actual yield of a 10kW-peak solar PV system in the whole year of 2019. This system is installed on a residential rooftop located in the United Arab Emirates.
In a year, a 10kW system will produce 12,000 kWh up to 16,400 kWh. However, it all depends on the solar plant location, site condition, inclination angle, shading, and system maintenance.
How To Determine How Many Solar Panels You Will Need
Taking into account the factors in the section above, a simple formula to use to estimate the size of the system that you need is kWh per year / 1200 = the size system you need . Our actual system design will take many other factors into account, but this should be a good estimate. Once we have the kW needed, we will select the number of panels by reviewing your available roof space and your target budget. For example, if space is an issue, we will need to select a higher efficiency panel to keep the footprint small and the production high. Likewise, a cheaper panel could be selected if there is more available space to work with.
You can do the math or better yet, use the examples we compiled for you to get a ballpark idea of the number of panels youll need. We suggest contacting a solar installation professional to determine the exact size for a system that best fits your needs. In the meantime, this chart is a good reference point.
Note: A 330W solar panel covers roughly 19.5 sq. ft.
Most homeowners will need a 5 kW to 20 kW solar system. This would obviously vary depending on a few factors, such as: if you have a heated pool or use electric heat.
A $120 average monthly electric bill will need a 10 kW solar system to cover their annual energy usage. A 10 kW solar system will utilize 32 330W solar panels and cover roughly 624 sq. ft.
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What Is The Cost Of A 10 Kw Solar System
As the demand for non-traditional energy sources increases, the cost of solar is dropping. AS of January 2018, average solar cost was reported at approximately $3 per watt. Before federal and state rebates, this brings the average cost of a 10 kW system to around $30,000. The federal tax credit is a 30% deduction, which means before your state specific discounts, you can expect an average spend of around $21,000 for this system.
When exploring cost and payment options, it is important to note that financing offers can have associated fees of 10 12%. If possible, this is a purchase that would be best made without relying on loan options.
In some areas, solar systems are available through a lease option. This is a beneficial alternative to purchase of the solar system. If you use us for solar, we offer $0 down leases which means you can get fully installed solar panels for no money out of pocket.
When considering your budget, remember that a high-quality system is likely to be at the higher end of the price spectrum. If you receive quotes significantly lower than everyone else, take time to do your due diligence to find out exactly what is being offered and why its being presented at a lesser cost. Compare the benefits of long-term savings to the potential up-front savings being presented.
Appliances A 3kw System Can Run
Heres an idea of what appliances you can run on a 3kWh Solar System.
Note: All consumption values refer to yearly average consumption for those appliances.
Fridge/Freezer: 150 to 190kWhDishwasher: 220kWh Coffee Machine: 30kWh Microwave: 60kWh Electric Oven: 150kWh Induction Cooker: 210kWh LED TV: 20kWhGames Console: 84kWh Washing Machine: 180 to 270 kWh Computer & Monitor: 300kWh Smartphone Charge: 7kWh
A 3KW Solar System that can produce 12kWh a day / 2500kWh a year on average will be able to annul a considerable part of your appliances consumption, therefore lowering your energy bill.
Another ideal way to find out how much a certain appliance consumes includes the use of a power monitor that will tell you exactly how much youre spending in real-time. They are cheap and widely available.
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Finding The Right Installer For A 10kw Solar System
To find the best installer for your 10kW solar system, you should get multiple quotes from different solar companies. You can then do a solar quote comparison, which will help you get the best price for installing solar panels on your roof.
Start with local installers with licensed contractors in your area, as they can give you personalized service, and they typically have a good understanding of what incentives are available in your area.
We make it easy for you to find the best local solar companies and certified contractors in your area, thanks to hundreds of customer reviews and our state-of-the-art solar calculator.
How much can you save annually by going solar?
How Much Roof Space Do You Need For A 10 Kw Solar System
How Much Power Does A 5kW Solar System Produce?
In general, 1 kW of solar energy can be generated from 66 square feet. This means that to install the panels for this system, you will need about of 660 square feet of roof space. A 10 kW system is comprised of 30 to 40 panels total depending on the efficiency of the panels you choose. Since SunPower panels are the highest efficiency, you would only need 30 panels. The size makes this solar system a great option for larger homes and smaller business properties.
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Editors Note: This Is An Overview On How To Understand How Much Energy Your Solar System Will Produce And Overall Solar Panel Output
We always advise speaking with at least a few certified solar installers to understand how all the factors will affect solar panel output for your system.
Solar panels indicate how much power they intend to produce under ideal conditions, otherwise known as the maximum power rating.
But how much electricity your solar panels produce depends on several factors.
- Does intermittent shading obscure direct sunlight from hitting the roof?
- How much sunlight does your roof get on average?
- How big are the solar panels, and how efficient are the solar cells at converting energy?
Because the seasons and weather conditions affect the amount of sunlight hitting your roof, and the amount of sunlight also varies on the time day, you cant use just the solar panel ratings to predict how much power youll get. However, your location will allow you to do some math and determine how well a solar panel works where you are.
How Much Electricity Does A 10kw Solar System Generate
In total, this system generates about 10,000 watts of electricity per hour as defined by laboratory Standard Test Condition results. This breaks down to an average of between 29 and 46 kWh per day.
It is recommended that your current energy usage be at least 20 kW per day and that your current bill be at least $800 per billing cycle if you plan on using a 10 kW solar system. If youre using less electricity, a smaller solar panel installation may be more appropriate.
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How Does A 10 Kw Solar System Impact My Homes Value
Your home value will go up once you install your new solar system. Property values increased with solar energy systems averaging $15,000-$20,000 more than their traditionally powered counterparts. So, if you spend $20,000 on the system and sell the property after a year, you can expect to almost break even when you combine this $15,000 with the expected yearly savings.
How Do I Calculate Kwh
It is possible to estimate a homes energy needs in kWh, but it isnt very accurate. You would have to add up all the wattages of normal appliances
You also need to guess how many hours per day a particular appliance would be used. As you can see, the approach isnt too accurate.
What I call normal appliances are those with a constant wattage i.e. you switch it on and it takes a constant amount of power in watts.
How many solar panels would you need to run air conditioning?
Some appliances arent like that. If an appliance uses a compressor, such as refrigerators, heat pumps, freezers and air conditioners , then it isnt so obvious what the average power consumption is.
These types of appliances run in cycles. That is, sometimes they are running, sometimes stopped and other times starting up. Compressor motors are subject to surge current.
For the above reason, its often difficult to estimate average watts. The best way is to simply take last years energy usage from your utility bill, which will be a good estimation of what you use.
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How Much Roof Space Do You Need For A 10kw Solar System
A 10kW solar installation will usually require between 475 and 615 square feet of roof space.
The actual square footage you need depends on the wattage of the panels you install. The lower the wattage, the more panels you need, which increases the amount of roof space you need.
Ideally, you would want at least 475 square feet of south-facing roof space to install your panels, as this maximizes the amount of energy the panels will produce.
Factors That Affect How Much Power A Solar Panel Produces
The total energy produced by a single solar panel is determined by several factors like its size, the amount of sunlight, materials used in construction, and the efficiency of the solar panel. With a clear understanding of each of these factors, you get to know exactly how much power a solar panel can produce.
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Kw Solar System Facts
- The average generation capacity of a 10kw solar system is 40 units/day.
- 40 units x 30 days = 1200 units/month & ,
- 1200 units x 12 months = 14400 units/year.
You will get the delivery within 3 days from the date of order & installation within 3 days from the date of delivery.
Is A 10kw Solar System Enough To Power A House
What Is A 10kW Solar System? | What You Need to Know | Teho | Solar and Battery Specialists
The typical American home uses 900kw a month, so a 10kw system should be enough. Assuming 5 hours of sunlight a day, this system can produce 30kw to 40kw or more than 1000kw a month.
Of course you need to consider the factors stated earlier. Some states have more sunlight than others so the output will vary. The average consumption is also just that, the average. What you actually consume may be much higher or lower than the average.
To find out if a 10kw solar system is enough for you, we suggest the following:
- Check your monthly consumption. It will be on your monthly bill. Average it out over 12 months.
- Determine how many sun hours are available in your location.
- Compare different types of 10kw solar system kits.
- Calculate how many batteries you will need. This will depend on how many sun hours are available and how often you plan to use battery power.
Once you have this figured out, you can contact the solar kit manufacturer. inform them of your plans and that you plan to install a battery bank as well. They might offer more suggestions on what battery sizes to use.
The size of the house has no bearing on the power consumption. An average sized house that uses a lot of appliances will consume more power than a large house that is more energy efficient.
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Forget Single Solar Panelshow Much Energy Will Your Whole System Produce
Knowing how much energy a single solar panel produces is all well and good, but more importantly, how much solar power can your roof generate? Lets do the math below:
Take our example above, where youre getting an average of five hours of direct sunlight per day and using solar panels rated at 290 W. Lets say you install 30 of those premium solar panels on your roofthat nets you a 8,700 watt, or 8.7 kW solar panel system, near the average system size purchased on the EnergySage Marketplace. Multiply the five direct sunlight hours we estimated above by 8.7 kW, and we get approximately 43.5 kWh of electricity produced per day. And for one final conversion, if we multiply 43.5 by 365 days in a year, we get approximately 15,800 kWh of electricity produced in a full calendar year from a rooftop array of 30 premium, 290 W solar panels. Considering the average electricity use per year in the U.S. is around 10,600 kWh, thats probably more than enough to power your home on solar.
This estimate is likely on the high end for most solar shoppers, and likely because of our estimate for the amount of sunlight the system will get . To learn more about average sun hours, check out our blog here, where we take a look at average sunlight per year by location.
Solar Panel Mounting Structures
Mounting structures are the supporting structures that hold the solar panels to the roof or ground. This can be made out of GI steel or aluminum materials. Usually, it has a combination of railings, end clamps, mid-clamps, mounting brackets, and other supporting structures. Its application ranges from ground mount, flat roofs, sloped roofs, tiled roofs, and others.
In general, the component amounts between 8% to 15% of the total solar power system cost. The cost will vary depending on the application of the solar mounting structure.
For a 10kW solar power system, we will consider a common sloped roof installation. This system will require 5 sets of 1×5 mounting structures for this type of application.
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How Many Batteries Do You Really Need
The calculations given above are straightforward enough. But it assumes that you want to store all the power your 10kw system produces in a day.
If you only want to store the excess solar energy produced, subtract the extra amount from the total output.
Example: if you use 30kw a day and the system produces 40kw:
40kw-30kw = 10kw
You need a battery bank that can hold 10000 watts.
10000 / 48 = 208ah10000 / 24 = 416ah10000 / 12 = 833ah
As usual you have to round off to the nearest battery size available. You could get 3 x 100ah 48V batteries, 2 x 250 24V batteries or 3 x 300 2V batteries.
10kw Solar System Battery Backup Power Calculation
Here is another example. Suppose you want to store enough power to last for three days, just in case there is a power failure or winter storm.
If your daily consumption is 30kw, you would need 90kw to cover three daysâ use.
90kw = 90000 watts
90000 watts / 24V = 2750ah90000 watts / 12V = 7500ah
To meet your daily power consumption over three days, you need about 5 x 400ah 48V batteries. You can use these same steps to calculate how many batteries you will need over a specific period.
Note that these calculations will fill the batteries to their capacity. If this is what you plan to do, understanding discharge rates becomes essential.