What Direction Should Solar Panels Face

What Direction Should Solar Panels Face?

South is the best direction for solar panels to capture the most sunlight in the Northern Hemisphere. In the Southern Hemisphere, north-facing panels work best. Equatorial regions often benefit from panels facing either north or south or even positioned directly upwards.

“What Direction Should Solar Panels Face?” is the most important question everyone should learn before installing their solar panels. Solar panel direction is one of the most important aspects upon which the total energy production of your solar system depends. When you align your panels with the path of the sun, they will get the most significant exposure throughout the day and generate maximum energy. 

Finding the right position and direction for your panels determines the total energy output, which significantly lowers your electricity bills. Eco-friendliness and cost-effectiveness are two main reasons for people going solar. But without knowing the right direction, installing them will badly affect the solar panel panels efficiency. So, the most worth doing thing is understanding what direction should solar panels face according to your geographical location. 

Our detailed guide will help you learn all the essential factors to consider when deciding where to place your solar panels and the best direction to position them for maximum efficiency.

What Direction Do Solar Panels Face Really Matters?

Solar panels need direct sunlight to generate electricity and this determines the importance of direction while installing the solar panels. Many people who have big roofs and handsome money to spend on solar systems pay less attention to the direction factor. 

They believe in installing as many panels as possible in all directions to generate sufficient energy to power their homes and businesses throughout the year. This approach is good as there are chances that many appliances will go solar in the future.

Moreover, the sun’s angle changes throughout the year, and installing panels in different directions is helpful in generating electricity over the year. But for those with a limited budget direction is the most crucial factor to consider while going solar. 

Why Most Roofs Can Go Solar?

Roofs are the most ideal places to install solar panels. According to the National Renewable Energy Laboratory, 82% of the total US buildings receive a sufficient amount of sunlight which is enough to generate adequate electricity; thus these buildings are qualified for going solar. 

In terms of economic value, most installers estimate that around two-thirds of single-family and small multi-family homes are well-suited for solar panels — making the chances of your home being a good fit quite high!

The best direction for solar panels to face depends on the direction of the roof of your house or building. Solar panels are best installed on south, west, or east-facing roofs in the Northern Hemisphere and north, west, or east-facing roofs in the Southern Hemisphere. You can also install solar on a flat roof or one that can be anywhere between flat and 45 degrees or even steeper. 

Most houses have small roofs or are occupied by plumbing vents, chimneys, gables, and skylights. However, nothing can work for you if your roof isn’t good for solar panels like it is covered by shade or preoccupied with stuff. 

What Direction Should Solar Panels Face?

The best direction of solar panels is determined by the geographical location of the home and building. All countries in the Southern Hemisphere demand north-facing roof solar panels for maximum energy production, as the Sunlight remains on the panels most of the time. 

In the Northern Hemisphere, you have to install your panels in the Southern direction to get maximum results. However, east or west-facing panels also work well in both Hemispheres. 

However, never face your panel south in the Northern Hemisphere and north in the Southern Hemisphere. Here is the list of countries and best directions for installing solar panels with some precautions. 

Best Orientation For Solar Panels To Face In Northern Hemisphere Countries: South Facing Solar Panels

CountryBest DirectionNotes
CanadaSouthTilt angle varies significantly by latitude; seasonal adjustments are vital. High potential for snow accumulation in winter.
United StatesSouthRegional microclimates greatly influence optimal angle; consider local peak sunlight hours.
United KingdomSouthCloud cover is a substantial factor; optimize for maximum winter sunlight.
GermanySouthSeasonal tilt adjustments are crucial; consider high cloud cover.
FranceSouthRegional differences exist, particularly between northern and southern France.
ItalySouthHigh sunlight levels in southern Italy; regional variations exist.
SpainSouthHigh solar irradiance; optimize for peak summer temperatures.
NetherlandsSouthCloudy conditions necessitate maximizing available sunlight.
PolandSouthSeasonal tilt adjustments are very important.
SwedenSouthLow sun angle in winter requires steep tilt; long summer days.
RussiaSouth (Southern Regions)A vast country; the optimal direction changes drastically with latitude.
ChinaSouthRegional variations are significant; air pollution can affect performance.
JapanSouthConsider local weather patterns, including typhoons and rainy seasons.
South KoreaSouthSeasonal variations must be accounted for.
IndiaSouthHigh solar irradiance; monsoon season impacts performance. The tilt angle is less drastic than in more northern locations.
PakistanSouthHigh solar irradiance and dust can be a factor.
TurkeySouthHigh solar irradiance in southern regions.
IranSouthA vast country with varied climates.
MexicoSouthHigh solar irradiance, especially in northern regions. The tilt angle is less drastic than more northern locations.
EgyptSouthVery high solar irradiance; desert conditions.
NigeriaSouthHigh solar irradiance; consider seasonal variations.
AlgeriaSouthHigh solar irradiance, especially in desert regions.
MoroccoSouthHigh solar irradiance and varied climates.
VietnamSouthMonsoon season impacts performance.
ThailandSouthHigh solar irradiance; tropical climate.
UkraineSouthSeasonal tilt changes are important.
RomaniaSouthConsider regional climate differences.
HungarySouthSeasonal tilt changes are very important.
PortugalSouthHigh solar irradiance.
GreeceSouthVery high solar irradiance.

Best Direction For Solar Panels To Face In Southern Hemisphere Countries

CountryBest DirectionNotes
AustraliaNorthRegional differences exist; high temperatures can affect efficiency.
BrazilNorth (Southern Regions)Large country; optimal direction varies by latitude.
South AfricaNorthRelatively consistent sunshine; dust can be a factor.
ArgentinaNorthTilt angle changes depending on latitude.
ChileNorthStrong solar irradiance, especially in the northern deserts.
New ZealandNorthVaried climate, consider local weather patterns.
Indonesia (Southern Parts)NorthTropical climate, high humidity.
MadagascarNorthTropical climate.
Peru (Southern parts)NorthVaried climates due to altitude.
AngolaNorthTropical climate.
MozambiqueNorthTropical climate.
NamibiaNorthHigh solar irradiance, desert conditions.
BotswanaNorthHigh solar irradiance.
UruguayNorthModerate climate.

Best Direction For Solar Panel Placement In Equatorial Region

CountryBest DirectionNotes
Indonesia (Equatorial Parts)North/South/UpwardsClose to equator; optimal angle varies; high humidity.
KenyaNorth/South/UpwardsClose to equator; optimal angle varies; altitude differences.
Colombia (Equatorial parts)North/South/UpwardsVaried climates due to altitude.
EcuadorNorth/South/UpwardsHigh altitude variations, high solar irradiance.
Democratic Republic of the CongoNorth/South/UpwardsTropical climate, high humidity.
UgandaNorth/South/UpwardsTropical climate, high altitude variations.

Which Angle Is Best For Your Solar Panels?

The best direction for solar panels is clear, but the ideal angle depends on your location and roof slope. The sun is directly above your head if you’re on or near the equator. In such a situation, horizontal panels at 90 degrees work best for you. 

The sun’s position changes throughout the year in other areas. In order to get maximum annual energy output, you have to tilt your panels equal to your latitude. For better year-round energy, some homeowners choose an angle between their latitude and latitude plus 15 degrees. Luckily, panels positioned within 30 to 45 degrees of your latitude still perform well year-round. 

Direction or Angle: What Matters Most In Solar Arrays?

The angle of your Solar panel is important, but not as much as the direction. The direction of the solar panel plays the most crucial role in maximizing your solar PV systems’ energy production ability. We have already discussed all possible directions that work best to get maximum output from the panels, but other factors also matter to get better output.

Roof Direction and Position 

Homes and commercial properties have different roof designs worldwide. The position of the solar panel depends upon these roof designs and it has a great effect on solar panel positioning. 

If the house’s roof slopes between 30 and 40 degrees, the solar panel should lie flat on the roof to produce maximum energy. However, if the roof is steep or shallow, you need to install a special mounting system to fit the panels.

In flat roof properties, these mounting systems will be used to move panels upward to give them the required tilt to achieve better results. Don’t forget to space your mounting systems correctly to prevent them from shading each other.

Ground Mounts Solar Panels: Is The Roof The Only Solution For Solar Panel Installation? 

If your home roof does not have enough space for solar panels or you don’t prefer to mount them on the roof, installing ground mounted system is an excellent choice as an alternative. Solar mounts are placed in open areas of your property such as yards or gardens and the solar panels are mounted on the freestanding frames. 

One of the best advantages of freestanding solar panels is that they can be placed facing south to get maximum power or at any angle as per your wish and needs. Ground mounted solar panels are more flexible in positioning and angling compared to roof mounts, which makes them a perfect choice. 

You will get maximum exposure to sunlight as the panels are easy to place in the right direction as per your location and provide a slope at the optimal angle equal to your location’s latitude. Ground mounting needs a clear space on the ground free from shade, but they are highly advisable because of their simple way of achieving an efficient solar setup if you have a room. 

With several benefits, there are some drawbacks of the ground-mounted solar panels. The first drawback is the shading of the surrounding trees, big buildings, or other obstacles that badly affect energy generation. 

Tough weather conditions like heavy wind or storms may cause trouble to freestanding panels. To protect these panels you need sturdy frames and mounts which in turn increases installation costs.

Buy the Best Solar Panels To Get Maximum Output

We have discussed the angle and direction of your solar panel placement to get maximum energy output but there is another factor that can significantly affect the end results. Many people neglect the quality of their solar panels and buy them from the nearest shop. 

In case of wrong panels, how optimal your direction or angle is doesn’t help you. That’s why Alily Energy offers you quality solar panels which produce clean renewable energy and lowers your electricity bills stress. 

Our panels have high-quality material and durable design so are best to use in every area as they can withstand various weather conditions. They require minimal upkeep and are best for various uses from homes and RVs to camping and powering off-grid appliances.

FAQs

Which direction should solar panels face in the US?

As per the US Department of Energy, South-facing is the best direction for solar panels in the continental US, with a tilt between 15 and 40 degrees. At this position, the Sun rays remain longer on the panels and generate more electricity. 

To get the most out of your solar energy system in India, you have to install your panels facing south. West and east directions are also favorable, but north is the worst. 

In the UK, solar panels perform best when facing south, as this maximizes their exposure to sunlight. This optimal alignment is typically called a zero-degree “azimuth,” which is considered the ideal position for capturing the most energy.

In Australia, north-facing panels will best best to generate maximum energy as sun rays remain longer on the panels. East or west-facing panels are also good but will lower efficiency by 10% to 20%. 

South-facing roof is the best solar panel orientation for solar panels in Ireland with a tilt angle between 30 and 35 degrees from horizontal. This direction and position will help in generating maximum energy throughout the year.

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