Can I Have Photo voltaic Panels On My Roof?


As extra householders flip to solar energy, chances are you’ll surprise, “are photo voltaic panels on my roof an possibility for me?” increasingly today.

If this sounds such as you, and also you’re curious to seek out out what makes a rooftop photo voltaic system a viable possibility, you then’ve come to the best place!

Photo voltaic panels in your roof are all about optimization and effectivity, so it’s essential to make sure you’re all set from the get-go.

This text discusses what makes a roof appropriate and the professionals and cons of this sort of system.


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Can I Have Photo voltaic Panels On My Roof?

Is My Roof Appropriate For Photo voltaic Panels?

For a profitable photo voltaic expertise, the roof and panel relationship should be an ideal match!

Roof Kind

Relating to photo voltaic panel set up, you have to set up the kind of roof your property has.

Sturdy and sturdy roof tiles or supplies are finest. Extra particularly, supplies like concrete tiles or composite shingles.

Clay tiles aren’t as supreme, and you will have to seek the advice of a photo voltaic skilled who’s extensively skilled in set up on these kinds of roofs.

Roof Age

A key piece of data to recollect is that photo voltaic panels have an extended lifespan. How lengthy precisely? Properly, they will final successfully as much as 30 years!

Example of the effective lifespan and degradation in PV modules present in solar panels.
Instance of the efficient lifespan and degradation in PV modules current in photo voltaic panels.
Supply: Nationwide Renewable Vitality Laboratory

Due to this, roof age performs an necessary function. In case your roof wants changing quickly, you have to guarantee that is executed earlier than any set up — a stable basis is essential!

Roof Angle

Relating to optimum solar publicity, the angle is every part!

The supreme roof angle for photo voltaic panels is round 45 levels, with quite a few households inserting theirs at roughly 30 levels.

The angle or pitch of your roof will decide whether or not it’s good to have added racking methods to angle your panels.

Basically, your roof angle determines your photo voltaic panel angle, and if the additional infrastructure is required, then a roof with these angles is finest suited!

Associated Studying: What Route Ought to Photo voltaic Panels Face For Max Effectivity?

Your Roof Daylight And UV Publicity

The photo voltaic irradiation your roof receives is the crux of your photo voltaic panel placement.

A research performed in Colorado checked out solar publicity on photo voltaic panels and confirmed the next:

Photo voltaic Panel Solar Publicity PV Technology
South and West Peak of 1.2 kWh round noon
South Peak of roughly 1.4 kWh earlier within the day
West Peak of simply over 1 kWh later within the day
Desk explaining the variations between solar publicity and photo voltaic panel placement when it comes to PV energy era

Photo voltaic panels positioned in direction of the south and west will generate much less energy than these with solar publicity in direction of the south solely.

Panels going through west will generate much less energy and solely later within the day.

In different phrases, inserting your panels south will present you essentially the most publicity and PV energy, and earlier within the day, too (as proven within the picture beneath).

A roof with these directional and publicity capabilities is a well-suited one!

The average energy consumption vs generation from solar panels placed at different orientations and receiving differing sunlight exposure.
The common power consumption vs. era from photo voltaic panels positioned at completely different orientations and receiving differing daylight publicity.
Supply: Researchgate

Water Drainage

When questioning, “can I’ve photo voltaic panels on my roof?” it’s essential to not overlook water drainage!

Typically when it rains, it pours, and the water should be capable of drain appropriately.

If the set up of your panels wouldn’t trigger an obstruction for flowing water or divert the path, which can result in structural issues, then your roof is appropriate!

Under is a brief clip summarizing a number of details mentioned on this part.

Associated Studying: Tesla Photo voltaic Roof (The whole lot it’s good to know)

How A lot Weight Do Photo voltaic Panels Add To A Roof?

The load your roof can face up to is one other issue that can allow you to decide whether or not you possibly can have photo voltaic panels in your roof.

Because the Nationwide Renewable Vitality Laboratory factors out, a PV system can add roughly 1.3 kilograms of weight (2.8 lbs) per 0.09 sq. meters (0.29 toes).

Nonetheless, this is determined by the kind of photo voltaic panels you put in.

The next picture from Kansas State College reveals a number of examples of the load variations, with panels such because the Kyocera coming in at a whopping 16.5 kilograms (36 lbs)!

Please be aware: to transform from kilos (lbs) to kilograms (kg), merely the pound mass worth by 2,205

An example of the weight differences between various solar panel models.
An instance of the load variations between varied photo voltaic panel fashions.
Supply: Researchgate

To find out the precise weight, you have to analysis the sort and model of photo voltaic panels you want to set up.

Associated Studying: 5 Greatest SunPower Photo voltaic Panels You Can Purchase

Execs And Cons Of Including Photo voltaic Panels To Your Roof

As with most issues in life, one should weigh the professionals and cons — rooftop photo voltaic panels are not any completely different.

In response to Renewable and Sustainable Vitality Evaluations tutorial journal, these are necessary to contemplate.

So, let’s take a more in-depth look…


An example of solar panels being cleaned as part of regular maintenance practices.
An instance of photo voltaic panels being cleaned as a part of common upkeep practices. Supply: SunModo Corp
  • System Reliability: rooftop photo voltaic panels are a reliable means of offering renewable power. These methods are well-designed and well-developed, making photo voltaic a well-researched type of inexperienced expertise that is still dependable. 
  • Low Working And Upkeep Prices: rooftop photo voltaic panels require little in the best way of upkeep. Nonetheless, these panels can final for roughly 30 years! So you continue to have to hold them clear and examine for injury as soon as every now and then.
  • Cleaner Greener Vitality: photo voltaic rooftop methods have zero carbon emissions, making them extra environmentally pleasant.
  • No Noise: rooftop arrays emit completely no noise when operating. As such, you possibly can benefit from the quiet surrounding surroundings as your panel’s photovoltaic cells take in the solar in silence.
  • Energy Technology At House: probably the greatest private advantages of getting rooftop panels is that you could generate your individual energy in your house.
  • Tax Incentives: many states supply tax rebates, schemes, and incentives for using inexperienced power. These tax credit can prevent a fairly penny, given the excessive price of preliminary set up!


Solar panel cells (photovoltaic cells) rely on sun exposure to generate energy.
Photo voltaic panel cells (photovoltaic cells) use solar publicity to generate power.
Supply: U.S. Vitality Info Administration
  • Expensive Preliminary Set up: photo voltaic panel set up is an costly affair! In response to the Photo voltaic Vitality Industries Affiliation, this will set you again round $2.94 per watt. Nonetheless, precise figures will depend upon varied elements reminiscent of system measurement, location, and obtainable incentives. Furthermore, in case your roof wants further work or infrastructure, you will have to pay extra.
  • Spatial Limitations: a sure variety of photo voltaic panels will probably be required to fulfill your own home power wants. If in case you have a small roof, you may discover there may be inadequate house for the dimensions or variety of panels you require.
  • Local weather Dependency: solar publicity will make or break your rooftop photo voltaic system. Sadly, if you happen to’re located in an space with minimal sunshine or weak UV rays hours, you may wrestle to make your power ends meet.

Last Ideas

Relating to photo voltaic arrays, you have to consider the suitability of your roof.

Begin by wanting on the roof supplies, sort, design, and publicity your panels will get. The very last thing you need is in your system to return crashing down!

Moreover, weighing up the professionals and cons chances are you’ll face is important.

This manner, you can also make an knowledgeable choice about your system and foresee potential issues you possibly can tackle nicely upfront!

If you wish to share your ideas or ask us a query, please be happy to achieve out to us within the feedback part beneath! Alternatively, go to our discussion board or observe us on Twitter!


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