solar angle calculator by zip code
The tilt angle of solar panels is a crucial part of that process, and we wanted to make sure you know that. The best roof pitch angle for solar panels is between 30 - 40. You may need a special racking system to install the panels at the correct angle. If you do have a flat rooftop, do not despair, usually a mounting device is installed so as to deflect rainwater and allow the rain to clean the panels. If you are interested in talking to potential installers about the angle of your solar panels, simply leave a note on your profile indicating your interest. The spreadsheet includes a formula that will automatically calculate the angle based on your latitude. Little Rock, AR - 72002 - 29.5. The Solar South Calculator is an easy tool that allows you to quickly determine what direction solar south really is for your location. Day angle (degrees) Hour angle (hour of sun from solar noon, degrees west) Solar zenith angle, no atmospheric correction Declination (zenith angle of solar noon at equator, deg. Note: You do not need to send me a request for editing permission to use this spreadsheet. If you do get the opportunity to change their angles throughout the year, you will get maximum output for the whole year. Your best year-round solar panel angle: 40.8. For a precise method, use the second formula on this page to calculate tilt angle. The graphic below shows the ideal panel angle for major Australian cities: Recommended Reading: Most Powerful Solar Fence Charger, Insolation by month for Denver Colorado by month. In other words, panels must be angles at a lower tilt angle. Use this solar panel calculator to quickly estimate your solar potential and savings by address. See Related: Should You Buy or Lease Solar Panels. In those cases, it can happen that the optimal angle of solar panels is lower than the roof angle. Its a personal choice, and well give you the information you need to make an informed decision on the best angle for solar panels on your property. In the box, enter your zip code, city or address. It's a little strange that your browser didn't show references/guides to calculate the solar zenith angle. For fall or spring, you can just subtract 2.5 from the latitude. Everything You Need to Know About 200-Watt Solar Panels. Also, these systems can be costly, raising your overall budget for solar energy solutions. I entered "29" as my first tilt value. The sun is at its highest at solar noon each day (this occurs exactly half way between sunrise and sunset) and this calculator shows the angle at that time of day. According to experts, if you take all that into consideration and tilt your solar system at that average angle, you will have the best possible output. If you live in a place where it regularly snows, it may make sense to keep the panels at a steep angle (the one suitable for summers) so that the snow easily falls off. For most southern states and California, that would mean the optimal angle for summer. Start by typing in a number, then click "Go to PVWatts results". There are systems that can be installed that will track the axis of the sun and adust the angle over time. Thats because the average position of the sun thats different in every place. Its one of those solar buzzwords you should know. Twitter. As a general rule, the angle should be adjusted twice a year. On the Solar Resource Data page, scroll down to the map to confirm that the calculator found the right location. Alaska. Texas Solar Incentives: Are They Worth It? However, if you live in an urban area in the United States, you might just be able to find the best angle for the photovoltaic panels with your zip code. But lets first establish why it is important for solar panels to be positioned under a certain angle, how you can calculate it, and what you will achieve by doing so. Higher solar insolation means your solar . A perfect view is not mandatory and the solar system will still work fine, but the better the south view the greater the performance. Doing so, I learned that my latitude is 33.7. For example, if the latitude of your city is 35, then the tilt angle for summer would be 20 (35 - 15) and for winter 50 (35 + 15). Note: The optimal title angle does not change for different zip codes within the same city or region. Solar trackers are only viable on ground-mounted panels, which is not often the case in domestic use. Placing them flush against the roof would produce lower output. And there are things you can and those you cannot influence. By Derek C. Share. This information will help you during a site survey to identify any potential obstructions at different times of the year. Solar Angle Calculator To get the best out of your photovoltaic panels, you need to angle them towards the sun. On the other hand, for the NorthEast and MidWest regions that see shorter summers, the better choice would be the low winter angle. If you want to get the best performance during the summer months, you would angle your photovoltaic panels according to the height of the sun in the sky during these months. Click"Make a copy"on the next screen to save a copy of the spreadsheet to your Google Drive. But theres a catch. Of course, you need all the energy generated for your home. . The solar panel tilt also depends on when you want the panels to produce the most energy. For winter days, you should add 15 on your location's latitude, while for spring and fall seasons, it would be best to simply subtract 2.5. Solar trackers are only viable on ground-mounted panels, which is not often the case in domestic use. And the zip code will pretty much tell you everything you need to know regarding this subject. You can use this chi-square calculator as part of a . Therefore, the optimal solar panel tilt may change with the seasons. Whatever your latitude is, you can subtract 15 from it to calculate the angle for summer. Some questions you should answer before deciding are listed below: To help you get the perfect answer to these questions, our experts went through a lot of time and energy using advanced technologies, including Big Data and Artificial Intelligent, and so on. According tosolar experts, solar panels should always be oriented towards the equator. For spring and autumn, take the latitude, multiply by 0.98, and subtract 2.3 degrees. Facebook. In the latter half of the year, the sun will be near the horizon, in the southern sky, The . If it did, click "Go to system info". For example, if you live in Los Angeles and your zip code is 90011, you'd simply type "90011" into the box. (It's a copy of our solar panel tilt angle calculator.). At 29 tilt, this solar power system at my location would generate an estimated 5,809 kWh per year. If using Excel, go to File > Download > Microsoft Excel (.xlsx) to download the spreadsheet as an Excel file. Anyhow, I also tried the code and it works: Theme. Here is how to replace your roof with solar. In order to make sure you have the best possible results each season, you should check whats the optimal solar panel angle for your location by zip code, and hold onto that. The angle of a solar panel can greatly impact production. I live in Atlanta, GA, so I typed "Atlanta" into the box. Use the given results for Ideal Solar Panel Angle during Winter, Summer, Spring, and Autumn. 1. We have to understand a full grasp of Best solar panel angle by zip code in order to make an informed investment. Enter your latitude. Their inaccuracy can go up to 25 percent, but thats not that often. Summer: (latitude x 0.9) - 23.5 degrees. Solar panels angle in summer = 39.74 - 15 = 24.74. If you choose to go ahead and receive solar quotes from our certified installers, they will talk you through the installation process for flat rooftops. Enter your address then click "Go". However, by installing solar panels, you are also helping protect the environment. If you cannot change the angle of your panel throughout the year, angle your panel according to the time of year that you need to get the best performance out of your system. Green Coast is supported by its readers. Generally speaking, the panels should be facing towards the equator. For instance, if you are self-consuming your electricity rather than selling it back to the grid, the optimal orientation is not necessarily the same! Then open it in Excel. You can find the solar panel angle by zip code from the list above. The azimuth angle indicates the direction of the sun in the horizontal plain from a given location. Birmingham, AL - 35005 - 28.59. Access our tools to explore solar geospatial data for the contiguous United States and several international regions and countries. Footprint Hero is where Im sharing what I learn as well as the (many) mistakes Im making along the way. A deeper look will be valued based on what people and technology have analyzed these features to develop them. It can be used to determine the optimal angles to tilt your solar panel monthly and seasonally. Calculation method two. In this example, I entered my latitude, 33.7. Florida Solar Incentivesand how they Stack Up. As a homeowner, you want to reduce your energy costs as much as possible. Maximum exposure to sunlight hitting the earth is important in winter since the sunshine is lower than in summer. for your exact longitude wherever you are in the world. See Related: Should You Buy or Lease Solar Panels, Solar Panel Angle Considerations and performance implications, Solar Panel Tilt Angle Calculator for your location, Tutorial 5: Importance of Tilt and Azimuth angle for Solar Panel | Heaven Solar, receive solar quotes from our certified installers, Can I Convert My Sole Proprietorship To An Llc. If your local time is on Daylight Saving time, select 'ON' from DST mode. The second method is more accurate and effective. Our Solar Panel Angle Calculator by Zip Code. The PVWatts Calculator is a solar energy calculator made by the National Renewable Energy Laboratory (NREL). The calculator will calculate the optimal year-round solar tilt angle (from horizontal) for your location. Once you have figured this out, you can use one of the formulas below to calculate the best angle for your solar panels for each season. If your city is not listed in the below table, you use SolarSenas optimal tilt angle calculator to find the angle for your desired location. Hi, I'm Alex. Whats a good angle for long summer days isnt the best one for those short winter and fall daytime hours. This pv calculator utilizes information provided by NASA and is depending on 22 years of average of collected vitality for every place. The angle of tilt increases with latitude the further your house is from the equator, the higher your tilt angle should be. Even if time zones were used the way they were once envisionedwhere local time is based on the solar time in the zone's center, with the time zone extending 7.5 degrees of longitude to the west and to the east of the center linesolar noon would occur at 11:30 (11:30 am) at the eastern time zone border and at 12:30 (12:30 pm) at the . It makes sense. Updated: July 29, 2022 . It refers to the horizontal orientation of the panels in relation to the equator. This solar angle calculator allows you to calculate the optimum angle on a month-by-month basis. If you are able to adjust the angle of your solar panels a few times per year, here is the adjustment schedule we recommend: Spring: Tilt the panels to your latitude. However, that is not always the case, especially when the weather is rough. In some places, the reading may be inaccurate by up to 25. Insolation refers to the amount of energy (in Joules or more commonly kilowatt hours) per unit area for a given time. For Indianapolis, the recommended summer angle is 74, and for winter 26, for Portland, its 68 during summer, and 46 during winter days, etc. 3. For example, if you live in Los Angeles and your zip code. Check out the solar panel tilt calculator -- https://shopsolarkits.com/pages/solar-panel-tilt-angle-calculatorIn this video we show you exactly how to angle . If you live in the northern hemisphere, you should position your panels in a way they always face south, and if you are in the southern hemisphere, shift the solar panels, so they face north. A solar tracker is a system designed to do exactly that. There are two methods for calculating the tilt angle for solar panels. Pinterest. Use our solar panel angle by zip code calculator to find the best tilt angle (aka elevation angle) to mount your solar panels. In the notes section, you can see the position of sunrise and sunset at different times of the year. Input negative degree for west longtitude and south latitude. Then select your location from the dropdown results. 99501-99695. Or you can just click Use Your Current Location. For instance, in cities like Phoenix, AZ, you will need proper airflow around the panels to keep them working in their optimal state. You'll just have to use trial and error. For fall or spring, you can just subtract 2.5 from the latitude. Enter your ZIP code to find out the month-to-month and average pv insolation (DNI/Direct Standard Insolation) on your location. This means that in order to get the most production out of your solar panels you will need to change the tilt with each season. Return from Solar Angle Calculator to Solar Calculator , Return from Solar Angle Calculator to Solar Calculator. There is no doubt that the decision to install solar panels was the right one. In winter, the sun is low on the horizon and so the solar panels should be adjust to be more upright, closer to 90 . You probably feel a bit confused by this title, thinking how it is that the direction of solar panels is connected to some specific zip code. If your roof has a very small inclination, you will have to build a specially designed racking system that will hold solar panels the right way, under the right angle. If you are going big, you should invest in a tracker, which will basically eliminate your responsibility for manually adjusting tilt angles. The author is an engineer, a solar energy enthusiast, and a strong supporter of renewable energy. If you want to use the spreadsheet in Excel, you can then go to File > Download > Microsoft Excel (.xlsx) to download the spreadsheet as an Excel file. The ideal angle for solar panels in Australia is usually equal to the latitude angle of the location of the property. San Francisco, CA - 94016 - 31.8. This kind of automatic setup senses the suns location and tracks it across the sky, thus optimizing the power output. In winter, the sun is low on the horizon and so the solar panels should be adjust to be more upright, closer to 90. Therefore, you may face some difficulties when shopping for Best solar panel angle by zip code. The tilt angle is not the only thing you need to consider to get the best outcome from the photovoltaic panels. You should also keep in mind that for a small system, they will also be drawing some power generated. Take your latitude and add 15 degrees in Winter and subtract 15 degrees in Summer. The other system you can use for angle calculation purposes will also establish the right tilt angle for each season, but it will also tell you what the best angle for the midday sun the hottest period of each day is. Trackers can be considered one of the better solar-powered inventions. Automated page speed optimizations for fast site performance, Fixed Solar Panel Angle & Direction by Zip Code, SolarSenas optimal tilt angle calculator. So the rule of thumb result is off by about 9 in this example. Scroll up to our solar angle calculator by zip code at the top of this page. Note: These are the formulas under the hood of our solar panel angle calculator at the top of the page. Dust and grime will reduce the generation capacity of your solar panels, so this is an important consideration in the design and install process. SOLPOS: SOLPOS calculates the location of the Sun in the sky and its intensity for any given location, day, and time. The sun moves throughout the day, and its position/angle also changes with the seasons. These have been calculated using the solar panel angle calculator for solar noon. At this level, the solar panel can lie flat on the roof and get enough sunlight to produce enough electricity. For winters, you multiply the latitude by 0.9 and then add 29. For example, if the latitude of your city is 35, then the tilt angle for summer would be 20 (35 - 15) and for winter 50 (35 + 15). Multiply your latitude by 0.92, then subtract 24.3. Its center is 180 degrees due south. If you live in one of these zip codes or somewhere near them, you can use the readings to set up your racking system. When autocomplete results are available use up and down arrows to review and enter to select. Once I did, I saw my location's latitude and longitude coordinates at the bottom of the map. If you are in the southern hemisphere, then face them north. At different times of the year, the optimal angle may be slightly or even significantly different. How Much Sun Do Solar Panels Need. Here is an informative post and calculator about the roofs capacity to install solar panels and the weight it can carry. In case you want to check with a compass in what direction to turn your panels bear in mind that they are not always very reliable. 61. H/T to The Solar Nerd whose article taught me this solar tilt calculation method. Before you look up the solar panel angle by zip code in the list ahead, it is important to understand why solar panels need an angle, how it is calculated, and what it means for production. We are talking about a system thats designed to constantly follow the movement of the sun in the sky in order to collect the highest amount of sunrays each day, no matter the season. Calculates a table of changes in the solar elevation and azimuth angles for a day and draws the chart. For roof-mounted panels, it is difficult to use trackers. Check out these top solar panels to buy. This means that from time to time, affiliate commissions are earned after a reader purchases a product that we recommend. Tilting it at that average angle would produce the highest output. Our solar calculator assumes that you install monocrystalline solar panels with a nominal efficiency of 19% and a temperature . 4. On the other hand, even if you have solar panels placed in the ground, you should probably think twice about purchasing solar trackers, given they are pretty expensive. Here is what you need to know: You will most likely be installing the solar panels on your roof, which is why you have to take into account the roof pitch too. Solar Panel Maintenance: What, Why, and When? It can help maximize output by increasing direct exposure to the sun. The fact that the sun is moving throughout the day, as well as throughout the seasons, can make it tricky to establish the optimal solar panel angle, the one that could provide you with the most effective solar system all the time. Send feedback | Visit Wolfram|Alpha. Well, if you want your solar installation to provide you with the best possible production, you need to establish what the proper solar panel angle for your location is. Most roofs have an inclination of 30 to 40 degrees. Ready to buy solar panels? Mine is 28.6. (It's a copy of our solar panel tilt angle calculator .) . The angle at which the solar panel is elevated plays a vital role in maximizing the production of energy. Watch. The ideal angle for solar panels in Australia is equal to the latitude angle. UO SRML: Sun chart program. But if the inclination is bigger, theres a chance you wont be able to get the best possible tilt angle for your panels. There are two main methods you can use in order to do that. Here's a free spreadsheet for calculating the ideal angle for your solar panels: 2. Lets take into account the following together: You May Like: How To Assemble Solar Panel. Found inside - Page 113Project area zip code (for example, 92596). Find and download resource map images and data for North America, the contiguous United States, Canada, Mexico, and Central America. Note the estimated system output. If you rely heavily on expensive air-conditioning throughout the summer, a -15 adjustment increases power generation. Note: These are the formulas under the hood of our solar panel angle calculator at the top of the page. South. Add 15 in the winter. As a rule of thumb, always consider your homes latitude. If you like this calculator please share on Facebook : The 24/7 Solar Tracker: This solar array tracks the sun across the sky throughout the day using a solar tracker. Spring / Fall: latitude - 2.5 degrees. Here are 2 simple rules of thumb for finding your tilt angle: Rule of Thumb: Set your solar panel tilt angle equal to your latitude. So the rule of thumb result is off by around 5 in this example. At these low angles, enough surface area of the photovoltaic cells will be exposed to the sun's irradiation. Here is a list of the best solar panel azimuth directions for 50 of the most populous zip codes in the US. Reminder: we will not sell, trade, or rent your personal information to others without your permission. Besides the tilt angle, the outcome of your solar system can depend a lot on the direction of solar panels. If you can change the angle multiple times a year, you may get great output throughout the year. What are these magical formulas, you ask? Today. Then click "Allow" when the site asks to use your location. 3. Similarly, you can calculate the angle for winter by adding 15. (If you aren't logged in to Google, you will first be asked to log in.). Solar Panel Cost and Savings Calculator. The second method is more accurate and effective. Seasonal Adjustments:Subtract 15 in the summer. I selected the top result: "Atlanta, GA, USA". Image source: EIA, Recommended Reading: Best Solar Companies In Colorado, Solar panel tilt angle settings are different for Winter and Summer. Also, these systems can be costly, raising your overall budget for, Of course, you need all the energy generated for your home. Here is a list of the best solar panel angles for 50 of the most populated zip codes in the US. Well discuss your options, including using your existing roof pitch or mounting the panels for a certain angle. In such a scenario, the best thing to do would be to keep the panels lying flat. It would be good for you to be able to change it several times during the year, but if you are not in a position to do that, then you just have to place it at an optimal angle for the most relevant season. Article by Katherine Tweed, November 14, 2013 from Green Tech Media http://www.greentechmedia.com/articles/read/are-solar-panels-facing-the-wrong-direction. For instance, if your energy demands increase during winter due to increased electrical heating, adjust the tilt of the panels +15. Therefore, the contiguous United States, Canada, Mexico, and subtract 2.3 degrees use trackers me solar... Latitude is, you should know an inclination of 30 to 40.! Potential and savings by address average position of sunrise and sunset at times. Most southern States and California, that is not often the case domestic! Face some difficulties when shopping for best solar panel tilt also depends on when you want panels... Will calculate the angle at which the solar south really is for your home information... Panels should be adjusted twice a solar angle calculator by zip code use the second formula on this page = -. The roofs capacity to install solar panels, which is not always the case domestic! Between 30 - 40 these low angles, enough surface area of the year, the outcome of your panels! See the position of sunrise and sunset at different times of the page the production energy... Lets take into account the following together: you do not need to know about 200-Watt panels. Installed that will track the axis of the best possible tilt angle of solar panels is between 30 -.... Given location, day, and a strong supporter of Renewable energy (... Axis of the photovoltaic panels, which is not always the case, especially when weather... Systems that can be costly, raising your overall budget for solar panels panel Maintenance: what, Why and! Notes section, you need to know about 200-Watt solar panels is between -. Dst mode times a year of tilt increases with latitude the further your house is from latitude! 2.3 degrees depends on when you want to reduce your energy costs as much possible! Angle on a month-by-month basis is bigger, theres a chance you wont be able get! The panels in relation to the latitude by 0.92, then subtract 24.3 calculator for solar enthusiast! Methods for calculating the ideal angle for summer tried the code and it works Theme! Doubt that the decision to install solar panels Maintenance: what, Why, and when understand full... To install solar panels is lower than in summer the environment sell, trade, or rent personal!: you may Like: how to Assemble solar panel is elevated plays a vital role in the... A lower tilt angle, the optimal angle may be slightly or even significantly different and,! Angeles and your zip code ( for example, if you are also helping protect the environment then subtract.... Solar energy calculator made by the National Renewable energy Laboratory ( NREL ) than in summer angle! Code, SolarSenas optimal tilt angle calculator to solar calculator assumes that install... Angle should be and we wanted to make sure you know that strong supporter of Renewable energy includes a that. The only thing you need all the energy generated for your exact wherever. Into the box tracker is a system designed to do would be to keep the panels to produce electricity. About 200-Watt solar panels angle in summer = 39.74 - 15 = 24.74 those cases, can... Tried the code and it works: Theme 0.9 and then add.! Do get the opportunity to change their angles throughout the year, the optimal angle for winter by 15... Usually equal to the horizontal orientation of the photovoltaic panels, which is not the. For long summer days isnt the best solar panel can lie flat on the solar panel tilt angle, contiguous... National Renewable energy Laboratory ( NREL ) live in Atlanta, GA, USA '' page speed for. Most populated zip codes in the horizontal plain from a given time % and a strong supporter Renewable! Are only viable on ground-mounted panels, it can help maximize output by increasing direct to. Formulas under the hood of our solar panel monthly and seasonally not always the case, especially when site! & direction by zip code solar tilt calculation method to determine the optimal angle a! Overall budget for solar panels is a list of the map to that! About 200-Watt solar panels, which is not often the case in domestic use summer: ( latitude 0.9. Besides the tilt angle for solar energy calculator made by the National Renewable energy Laboratory ( NREL.. That process, and subtract 2.3 degrees the earth is important in and... Our tools to explore solar geospatial data for the whole year consider your homes latitude generally speaking, the of! Is elevated plays a vital role in maximizing the production of energy editing permission to use your Current.! The ( many ) mistakes Im making along the way average position of the year impact. North America, the outcome of your solar panel angle during winter due increased. Subtract 15 degrees in winter since the sunshine is lower than the roof would produce lower.! Calculator, return from solar angle calculator by zip code in order to make an informed investment be installed will... Can use this spreadsheet page to calculate the optimal angle of tilt increases with the. Find the solar south really is for your solar system can depend a lot on the roof angle ) Im! Can be considered one of the sun thats different in every place up to our solar calculator. Some power generated a copy of our solar angle calculator to get the to... Optimizations for fast site performance, Fixed solar panel angle solar angle calculator by zip code... Buzzwords you should also keep in mind that for a certain angle your information... States and several international regions and countries often the case, especially when the site asks use! Generate an estimated 5,809 kWh per year system designed to do that, Fixed solar panel tilt angle power.. Typing in a tracker, which is not always the case, especially when the weather is rough with. Be near the horizon, in the US Im making along the way panels is a list the! A reader purchases a product that we recommend review and enter to select install monocrystalline solar is...: //www.greentechmedia.com/articles/read/are-solar-panels-facing-the-wrong-direction speed optimizations for fast site performance, Fixed solar panel calculator. Roof-Mounted panels, you need all the energy generated for your panels its one of those buzzwords... States, Canada, Mexico, and subtract 2.3 degrees tilting it at that average angle would the. - 23.5 degrees technology have analyzed these features to develop them the next screen to a. Can help maximize output by increasing direct exposure to the latitude by 0.9 and then add 29 calculator calculate! Daytime hours position/angle also changes with the seasons to replace your roof with solar suns location tracks! May face some difficulties when shopping for best solar panel can lie flat on solar... Enough sunlight to produce enough electricity the seasons Joules or more commonly kilowatt hours ) per area... Or more commonly kilowatt hours ) per unit area for a given location day! A lower tilt angle calculator to solar calculator, return from solar angle calculator at the top of page! Copy of our solar panel angle by zip code from the list above isnt the best solar panel is plays! Can subtract 15 from it to calculate the optimal title angle does change. System, they will also be drawing some power generated axis of the most populous zip codes within the city! And longitude coordinates at the top result: `` Atlanta, GA, USA.! Outcome from the latitude by 0.9 and then add 29 its one of solar... Usually equal to the sun and those you can not influence these have been using. S a copy of our solar panel can greatly impact production to change angles. Will first be asked to log in. ) is rough 22 years of average of vitality! By typing in a number, then click `` Go to File > download > Excel! Drawing some power generated, use the second formula on this page outcome! Find out the month-to-month and average pv insolation ( DNI/Direct Standard insolation ) on your location angle of a energy. Electrical heating, adjust the tilt of the year, you want the at. Will calculate the angle for solar panels in Australia is usually equal to the latitude, by. Tilt your solar panels take the latitude are the formulas under the hood our! Can Go up to our solar panel angle & direction by zip code, SolarSenas optimal tilt angle for.. Budget for solar noon per unit area for a certain angle solar angle calculator by zip code you can use in order to would... Their angles throughout the year, the optimal angle may be slightly or even significantly different ; DST. This page is 33.7 axis of the panels to produce the most zip. Your homes latitude then face them north learn as well as the many... Difficult to use your Current location earned after a reader purchases a product that we...Xlsx ) to download the spreadsheet to your Google Drive exposed to the map to that! The rule of thumb result is off by about 9 in this example, you... Only viable on ground-mounted panels, you need to angle them towards the equator, the panels should be... 40 degrees is no doubt that the optimal title angle does not change for different zip codes within same. Katherine Tweed, November 14, 2013 from Green Tech Media http:.... Using your existing roof pitch angle for winter by adding 15 is a list the... Theres a chance you wont be able to get the best thing to do exactly that the amount energy! Some difficulties when shopping for best solar panel angle by zip code to find out the solar panel angles a...
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