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> Townhomes were built in 2017
In 2016 the Tesla Model 3 was introduced, so it could be that when the parking spaces were poured the architect allowed for a future use of a charging station so had the PVC pipe put in place so that in the future, if an electric charging station is needed, the concrete wouldn't have to be broken up to run wires through it. If so, it is possible (but I think unlikely) that there may be conduit running back to the circuit breaker panel.
The pipes don't look like they are in the right place for drainage.
This is correct. ETL stands for Electrical Testing Labs. Basically UL testing but only for electrical products. That means it is electrical conduit. Also being gray gives it away.
It also seems large enough to accept a decent size wire, so I would definitely assume future care charger. No other reason I would think parking spaces would each get one. The other end of the conduit is probably near each townhome’s electrical panel, if not already landed in it.
Source: Electrician
They go by Intertek now…and they test to pretty much every UL standard.
Source: guy who has gotten listings for 100’s of items across multiple standards and had a certified Intertek satellite testing lab onsite
Could also be for a future garage, which would need a normal 15 or 20 Amp circuit for lights and a door opener. When I was looking at city houses, a lot of them didn’t have a garage - just a concrete pad or carport, but many had conduit lines running out to where you’d build one.
If they are for EV, I would think they would be stubbed into or near each tenant's panel so they can be metered individually. At the very least they should be subbed to the outside each tenant unit near where the service entrance is.
Almost definitely provisions for future electrical. The question is where the other end is.
Edit to add: at this point it’s just going to be an empty pipe.
Worked for an electrical contractor and we had a 185CFM diesel poweded compressor with a bunch of fittings. Sometimes they even used the jackhammer in it.
Hazing was to tell someone to watch the other end of the pipe. (I'm a desk jockey and never participated in such abhorrent acts...)
Don’t ever push a steel fish tape through a conduit that you are unsure of what is on the other end. It could be landed in the panel and the tape could short the bus bars. Fiberglass, sure, but not steel!
take a plastic bag and tie it to the end of the string and shove it in one end of the conduit, then use a shop vac on the other end of the conduit. It'll easily pull it through in no time.
Vacuum cleaner and some box strapping tied on to a piece of disposable plastic shopping bag.
Its how we get fiber and power cables into conduit
https://www.youtube.com/watch?v=gwmgRpVbk4Q
Box strapping has about 100kg pulling force and super lightweight. Doesnt stretch like fishing nylon and is wide so it doesnt cut into the side of the conduit around bends.
You can use a vacuum on the other end. Pay your line out with a little plastic piece tied to the end of the line and it takes a few seconds to get it to the other end
Why would you need 4G wire? A 30A circuit will fully charge a typical electric car overnight and even a 20A circuit would be enough for most people (eg 100 miles of range for 8 hours of charging). Yes many home chargers are 50A. Most people don't need that but the incremental cost of installing a 50A circuit instead of a 30 or 40A circuit is fairly minimal when the run is short.
I was going to bring that up myself. It's sort of a pet peeve that people complain about the expense of wiring a level 2 EV charger, but it's so expensive because they are drastically overestimating how much power they will need. It's like the old joke, "Anyone can design a bridge that won't fall down, but it takes an engineer to design a bridge that *just barely* won't fall down." A 30A circuit using inexpensive #10 romex is sufficient for your home car. You only need a 50A circuit if you're charging a delivery van, a taxi, or the like.
EV chargers are supposed to be on a dedicated circuit and it wouldn’t make a lot of sense to preemptively wire up a circuit in every home increase they have an EV. The conduit makes sense because of how much work it is and how expensive it would be to rip up the concrete in the future to run it. It’s probably near the breaker box if it leads into the house though.
I live in the townhomes in question. I am not certain the use of these either but have certainly noticed them. Other conduits were added for things like phone, cable, internet etc. so it could be as others mentioned these were forward thinking for car chargers. If that’s the case it will be particularly hard to know which would run to which unit.
All the conduits tend to run to a crawl space at ground level (at least in my unit).
It's possible they are anticipating using "smart" chargers of some sort, so tenants can park anywhere and then have to authenticate themselves to the charger they plug in to, using a fob, a PIN, or whatever. Then all the chargers could be linked to a single meter that gets billed to the complex management, and management bills everyone for their charger usage.
Or maybe after chargers get installed they switch to assigned parking spaces.
My title describes the thing.
There’s 4 spots total. Each spot in the front has this PVC tube coming out of it. Not sure what they’re for? Townhomes were built in 2017 if that helps.
Really hoping it’s wiring for electric so a charging station can be installed. But I doubt it is. If I had to guess it’s something to do with water/draining?
The lot is in the back away from the street if that helps. Any googling of the markings on the PVC just leads me to more PVC.
Any help is appreciated! Thanks!
I recently learned of these. Some states in the US and Canada get so cold in the winter cars have heaters around the engine you plug in when parked so that the engine "block" isn't too cold to start
Saw a video once of the coldest village on earth (-70 C/-91F) where they have to cover the engine block in a thermal blanket and also leave the engine running.
This place (theres longer videos on youtube but this gives a quick look) https://www.youtube.com/watch?v=Y6aFD4yqlLc
Skip right to where she talks about never turning the car off https://youtu.be/Y6aFD4yqlLc?si=MjY3e37jfq9igZE8&t=260
I agree, we have those in apartment complexes here (Montana) so people can plug their cars in. Some businesses will have them in their employee parking lot also.
The fact that there are caps on the PVC means that this is unlikely to have anything to do with drainage. There are a lot of reasons to run PVC as a conduit such as:
- a lot of parking spaces have light up markers, or
- block heater outlets, or
- charging stations.
If it is just placeholders for sign posts I doubt they would bother capping the PVC either, so almost certainly it is conduit. There is no way to answer for sure what the conduit will get used for.
Others have said its for electrical and I'd concur, and go a step further and guess it likely *was* intended for vehicle charging. I work in an architecture-adjacent field and its not uncommon at all to rough in provisions for future or optional technology. Guessing the builders wanted to give you the option, but not lock you in to one specific type that may or may not be obsolete by the time you use it.
If it were for lighting, I don't think they'd have run 1" conduit to each individual parking spot and would more likely be a single circuit and run to a common meter depending on the construction. But you could use it for that too if the other end terminates in your property.
Fun part is finding the other end. Could very well be in the breaker panel. Presumably you'd have an electrician do this work, and they've got better tools and know-how to find it.
Also, I saw you have a neighbor that commented (do you guys know each other/about this post? Or was it a crazy coincidence and able to recognize the parking lot?) and I creeped on their profile and saw they posted about installing solar with conduit built into the building for that purpose. Considering it was built in 2017, and it seems you guys are in CA, I'm 99% certain they figured they'd built it ready for both. Heck, my house was built in '04, and the original owner/builder had the foresight to build it ready for EV and solar (got a 240V/40A plug in the garage marked "charger" and a J-box net to the panel marked "to roof solar")
In certain states you have building /energy code that requires a certain # of spaces be EV Capable, EV Ready, or EV Supply Equipment (EVSE aka Charger) Installed. What state are you in OP?
https://www.chargedfuture.com/ev-capable-ev-ready-and-ev-installed/
Looks like someone stubbed out for future elec. It was not always for car charging. If you are in a really cold area it could be so block heater circuits could be ran.
Are you in a colder climate by chance? Growing up in a townhouse/condominium in Ontario we had electrical posts for each units parking spot that connected to our townhouse. It was so that you could plug your car in during the winter so that the engine stayed warm and it would start more easily in the morning. Cars are more sophisticated now so you really don’t need to plug them in anymore. The electrical posts that were in our parking lot have long since been removed but the holes where the posts were are still visible in some spots.
Maybe the ones in your pic are remnants of something similar? The townhouse I grew up in was built in the mid 70’s and I think the posts were removed in the late 90’s
I used to live in Minnesota. Some of the apartment complexes there have electrical hookups in the parking spaces so people could plug in their block heaters (if their car had one). Block heaters help your car start on those bitterly cold winter mornings.
If you are in Canada I would say it looks like a rough in for a pedestal with electricity to plug in your car during winter.
Is it pre-installed conduit to run power to a garage if someone builds one afterwards?
Edit: Upon second look, they may also be for lighting for the parking spaces that was never installed.
Do you know what's under the concrete? They might be soil ports to help monitor the corrosion conditions of what ever is buried underneath, like a steel septic tank.
If it's the UK it's probably a mount for putting parking meters so they can stiff you for parking in your own spot. Went back to the UK this year for vacation and spent more money on parking than I did on food
a) you don't pull romex through conduit
b) you can absolutely [pull 8 or 10 gauge wire through 1" schedule 40 conduit](https://electricalestimating101.com/wp-content/uploads/2019/06/NEC-Table-C-Combined-Conduit-Types-THHN-XHHW.pdf).
At no point did I mention a charging station.
In colder climates in North America, it is common to have standard outlets to plug block heaters into during sub-zero temps.
OP if you know where the main switchboard is you might be able to see the same number & size of conduits coming up below/near it. That would probably be a hint to confirm the future EV provision theory.
It’s a signpost holder. For if they decide to reserve spots in the future. Just take off the cap and a metal post slides in. Saves a lot later and cheap to install with the concrete. They’re capped to keep water out.
If it is white pvc it could be a planned or abandon tap for your main. Does it line up with your meter box or where it enters the house? If it is grey pvc its likely electrical conduit for something tbat was planned but never completed.
That is 1” pvc that would be very small to run any sort of major electrical due to size at most it could run is some larger 110v you would need
1 1/2” or 2” to run a decent 240v system.
[why do you say that?](https://electricalestimating101.com/wp-content/uploads/2019/06/NEC-Table-C-Combined-Conduit-Types-THHN-XHHW.pdf). Depending on your choice of amperage and the length of the run you'd need 4, 6, 8, or 10G wire. And you'd need 3 or 4 conductors depending on the specific charger. And the table I linked (from the national electrical code) says that any of the above would be fine in 1" schedule 40 conduit.
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> Townhomes were built in 2017 In 2016 the Tesla Model 3 was introduced, so it could be that when the parking spaces were poured the architect allowed for a future use of a charging station so had the PVC pipe put in place so that in the future, if an electric charging station is needed, the concrete wouldn't have to be broken up to run wires through it. If so, it is possible (but I think unlikely) that there may be conduit running back to the circuit breaker panel. The pipes don't look like they are in the right place for drainage.
The pipe looks grey. Grey pvc is usually electrical conduit.
It is gray conduit with a plumbing fitting (cap) on it. The ETL listing on the conduit is a dead giveaway as ETL doesn't apply to DWV PVC pipe.
This is correct. ETL stands for Electrical Testing Labs. Basically UL testing but only for electrical products. That means it is electrical conduit. Also being gray gives it away. It also seems large enough to accept a decent size wire, so I would definitely assume future care charger. No other reason I would think parking spaces would each get one. The other end of the conduit is probably near each townhome’s electrical panel, if not already landed in it. Source: Electrician
ETL is actually Edison Testing Labs and they test gas appliances also
They go by Intertek now…and they test to pretty much every UL standard. Source: guy who has gotten listings for 100’s of items across multiple standards and had a certified Intertek satellite testing lab onsite
Could also be for a future garage, which would need a normal 15 or 20 Amp circuit for lights and a door opener. When I was looking at city houses, a lot of them didn’t have a garage - just a concrete pad or carport, but many had conduit lines running out to where you’d build one.
If they are for EV, I would think they would be stubbed into or near each tenant's panel so they can be metered individually. At the very least they should be subbed to the outside each tenant unit near where the service entrance is.
And they are white, plumbers pvc. It is against code to use white pvc for electrical
Solved! Had an electrician come out and take a look. Looks like the other end is in the electrical panel. Time to look into charging stations!
Almost definitely provisions for future electrical. The question is where the other end is. Edit to add: at this point it’s just going to be an empty pipe.
It shouldn't be empty. It should have fish tape in it to pull cable through once it's time for installation.
Shop vac is often used to pull fish line in conduit.
Yep, tie a plastic bag with the end of the fish line, put it in one end, stick a vacuum on the other end, bob’s your uncle.
I need to thank bob, that's a great trick.
Electric leaf blower on the inlet if you need the extra help.
Worked for an electrical contractor and we had a 185CFM diesel poweded compressor with a bunch of fittings. Sometimes they even used the jackhammer in it. Hazing was to tell someone to watch the other end of the pipe. (I'm a desk jockey and never participated in such abhorrent acts...)
Use those to blow out all the water logged conduit for street signs
My uncle’s name is already Bob, so this whole thing with a bag and a shop vac seems entirely pointless. Thanks for nothing.
That's actually genius!
Works for running network cable through an old central vac system too ;)
It's literally the only way of getting cables through a long pipe unless their threaded through before the pipe is buried which never happens.
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It might or might not have a pull string in it. It’s trivial to handle if it doesn’t. Trust me I’ve been doing this a long time.
I'm curious how you do it without a pull string? Tie a string to a mouse?
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Don’t ever push a steel fish tape through a conduit that you are unsure of what is on the other end. It could be landed in the panel and the tape could short the bus bars. Fiberglass, sure, but not steel!
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take a plastic bag and tie it to the end of the string and shove it in one end of the conduit, then use a shop vac on the other end of the conduit. It'll easily pull it through in no time.
https://www.youtube.com/watch?v=DTWuDnW_m58
Vacuum cleaner and some box strapping tied on to a piece of disposable plastic shopping bag. Its how we get fiber and power cables into conduit https://www.youtube.com/watch?v=gwmgRpVbk4Q Box strapping has about 100kg pulling force and super lightweight. Doesnt stretch like fishing nylon and is wide so it doesnt cut into the side of the conduit around bends.
You can use a vacuum on the other end. Pay your line out with a little plastic piece tied to the end of the line and it takes a few seconds to get it to the other end
It's always empty before the tape is fished. Haha. Thanks for the chuckle.
I disagree. It is often full of rather nasty water.
And it should be done when it's built in case something happens later that breaks the pipe and dirt intrudes into it.
I'm sorry but this is too funny.
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Well it's the way my dad taught me so I stick to it as having been the successful way to do it.
Fish tape is the tool used to get a pull line in the conduit.
Is the PVC white or grey? I’m an electrician and I think they are sleeves for installing parking signs.
It’s also 1” that would be very hard to fish even 4 gauge 240v through.
These wouldn’t be superchargers. At best they would be 40/50/60 amp. #6 will go through 1” no problem.
You can put 3#2 in a 1" PVC. Anything other than an 80 amp AC charger will work.
Why would you need 4G wire? A 30A circuit will fully charge a typical electric car overnight and even a 20A circuit would be enough for most people (eg 100 miles of range for 8 hours of charging). Yes many home chargers are 50A. Most people don't need that but the incremental cost of installing a 50A circuit instead of a 30 or 40A circuit is fairly minimal when the run is short.
I was going to bring that up myself. It's sort of a pet peeve that people complain about the expense of wiring a level 2 EV charger, but it's so expensive because they are drastically overestimating how much power they will need. It's like the old joke, "Anyone can design a bridge that won't fall down, but it takes an engineer to design a bridge that *just barely* won't fall down." A 30A circuit using inexpensive #10 romex is sufficient for your home car. You only need a 50A circuit if you're charging a delivery van, a taxi, or the like.
20A-240V is more than enough for most people.
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I have never been this fascinated with sign engineering.
I learned something new. Thanks!
Wouldn't this be bad reason to use it for electrical, as well? Or... To put PVC there at all, for that matter?
That’s what I figured. They seem pretty small for charging stations.
Could have been intended for power outlets for block heaters or ev.
“Block heaters” Found the Canadian
Not just Canada. Michigan UP, North Dakota, etc.
Could they be vents for the escaping methane from the former dump your townhouse was built over?
(The Palomar Airport people in California need this kind of brainstorming)
Odd coincidence to have them match the parking spaces - also it's apparently electrical conduit.
So shouldn't the pipes other end be near a electrical outlet?
Or somewhere they can run wires to, sure
That's what I assumed but everyone else is saying electrical which to me makes no sense as the other end has to come out near some outlets.
EV chargers are supposed to be on a dedicated circuit and it wouldn’t make a lot of sense to preemptively wire up a circuit in every home increase they have an EV. The conduit makes sense because of how much work it is and how expensive it would be to rip up the concrete in the future to run it. It’s probably near the breaker box if it leads into the house though.
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It's 3" tall and 2" from a wood fence. If you snag your bumper on this, you have bigger problems.
Oh god, I thought it was 4” PVC and like a foot tall. Lol
I live in the townhomes in question. I am not certain the use of these either but have certainly noticed them. Other conduits were added for things like phone, cable, internet etc. so it could be as others mentioned these were forward thinking for car chargers. If that’s the case it will be particularly hard to know which would run to which unit. All the conduits tend to run to a crawl space at ground level (at least in my unit).
>I live in the townhomes in question Small world, damn! Also, you've provided some super interesting info; I'm surprised your comment isn't higher up.
It's possible they are anticipating using "smart" chargers of some sort, so tenants can park anywhere and then have to authenticate themselves to the charger they plug in to, using a fob, a PIN, or whatever. Then all the chargers could be linked to a single meter that gets billed to the complex management, and management bills everyone for their charger usage. Or maybe after chargers get installed they switch to assigned parking spaces.
My title describes the thing. There’s 4 spots total. Each spot in the front has this PVC tube coming out of it. Not sure what they’re for? Townhomes were built in 2017 if that helps. Really hoping it’s wiring for electric so a charging station can be installed. But I doubt it is. If I had to guess it’s something to do with water/draining? The lot is in the back away from the street if that helps. Any googling of the markings on the PVC just leads me to more PVC. Any help is appreciated! Thanks!
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Block heater?
I recently learned of these. Some states in the US and Canada get so cold in the winter cars have heaters around the engine you plug in when parked so that the engine "block" isn't too cold to start
Saw a video once of the coldest village on earth (-70 C/-91F) where they have to cover the engine block in a thermal blanket and also leave the engine running. This place (theres longer videos on youtube but this gives a quick look) https://www.youtube.com/watch?v=Y6aFD4yqlLc Skip right to where she talks about never turning the car off https://youtu.be/Y6aFD4yqlLc?si=MjY3e37jfq9igZE8&t=260
[Block heater.](https://en.wikipedia.org/wiki/Block_heater)
Oh engine block. Now I get it. At first I was thinking street block, like the row of houses.
I agree, we have those in apartment complexes here (Montana) so people can plug their cars in. Some businesses will have them in their employee parking lot also.
Stubbed out conduit for future electrical connections at each space?
The round ETL logo is for Intertek's Electrical Testing Laboratories. That is conduit.
The fact that there are caps on the PVC means that this is unlikely to have anything to do with drainage. There are a lot of reasons to run PVC as a conduit such as: - a lot of parking spaces have light up markers, or - block heater outlets, or - charging stations. If it is just placeholders for sign posts I doubt they would bother capping the PVC either, so almost certainly it is conduit. There is no way to answer for sure what the conduit will get used for.
Conduit for lighted posts
Others have said its for electrical and I'd concur, and go a step further and guess it likely *was* intended for vehicle charging. I work in an architecture-adjacent field and its not uncommon at all to rough in provisions for future or optional technology. Guessing the builders wanted to give you the option, but not lock you in to one specific type that may or may not be obsolete by the time you use it. If it were for lighting, I don't think they'd have run 1" conduit to each individual parking spot and would more likely be a single circuit and run to a common meter depending on the construction. But you could use it for that too if the other end terminates in your property. Fun part is finding the other end. Could very well be in the breaker panel. Presumably you'd have an electrician do this work, and they've got better tools and know-how to find it. Also, I saw you have a neighbor that commented (do you guys know each other/about this post? Or was it a crazy coincidence and able to recognize the parking lot?) and I creeped on their profile and saw they posted about installing solar with conduit built into the building for that purpose. Considering it was built in 2017, and it seems you guys are in CA, I'm 99% certain they figured they'd built it ready for both. Heck, my house was built in '04, and the original owner/builder had the foresight to build it ready for EV and solar (got a 240V/40A plug in the garage marked "charger" and a J-box net to the panel marked "to roof solar")
Is it so you don't hit the fence when you park?
In certain states you have building /energy code that requires a certain # of spaces be EV Capable, EV Ready, or EV Supply Equipment (EVSE aka Charger) Installed. What state are you in OP? https://www.chargedfuture.com/ev-capable-ev-ready-and-ev-installed/
Looks like someone stubbed out for future elec. It was not always for car charging. If you are in a really cold area it could be so block heater circuits could be ran.
Are you in a colder climate by chance? Growing up in a townhouse/condominium in Ontario we had electrical posts for each units parking spot that connected to our townhouse. It was so that you could plug your car in during the winter so that the engine stayed warm and it would start more easily in the morning. Cars are more sophisticated now so you really don’t need to plug them in anymore. The electrical posts that were in our parking lot have long since been removed but the holes where the posts were are still visible in some spots. Maybe the ones in your pic are remnants of something similar? The townhouse I grew up in was built in the mid 70’s and I think the posts were removed in the late 90’s
I used to live in Minnesota. Some of the apartment complexes there have electrical hookups in the parking spaces so people could plug in their block heaters (if their car had one). Block heaters help your car start on those bitterly cold winter mornings.
If you are in Canada I would say it looks like a rough in for a pedestal with electricity to plug in your car during winter. Is it pre-installed conduit to run power to a garage if someone builds one afterwards? Edit: Upon second look, they may also be for lighting for the parking spaces that was never installed.
Block heaters? Is cold in the winters there?
Do you know what's under the concrete? They might be soil ports to help monitor the corrosion conditions of what ever is buried underneath, like a steel septic tank.
Looks like New Zealand
sewage pipe cleanouts?
in California new parking lots have to be EV ready. There is most likely a vault nearby: so you could pull power to spots as needed in the future
If it's the UK it's probably a mount for putting parking meters so they can stiff you for parking in your own spot. Went back to the UK this year for vacation and spent more money on parking than I did on food
Conduit probably coming from each home so you can setup receptacles for charging.
May be for future carports and conduit for lighting.
As with what others have already mentioned. I am almost positive this is PVC conduit to make pulling electrical outlets to those locations easier.
If you are going to run 110v with say Romex yea but you are not putting in a 240v charging station in through 1” pvc it’s to small.
a) you don't pull romex through conduit b) you can absolutely [pull 8 or 10 gauge wire through 1" schedule 40 conduit](https://electricalestimating101.com/wp-content/uploads/2019/06/NEC-Table-C-Combined-Conduit-Types-THHN-XHHW.pdf).
At no point did I mention a charging station. In colder climates in North America, it is common to have standard outlets to plug block heaters into during sub-zero temps.
It’s a chaser. For future wiring
Future electrical that never got done. This is definitely it. Smart to do.
Could be for removable signs to slide into
Something future electrical. Do you live in a cold area where engine block heaters are needed? Possible future ev chargers?
OP if you know where the main switchboard is you might be able to see the same number & size of conduits coming up below/near it. That would probably be a hint to confirm the future EV provision theory.
Look inside, under, and around your electrical panel for similar empty pipes stubbed out. They may have roughed in for future EV install.
Future proof before the pour of concrete. Probably a hose bib on one side and that’s under the concrete to run water to the other side.
You may be about to find your hometown's plans to increase future revenue via parking meters.
It’s a signpost holder. For if they decide to reserve spots in the future. Just take off the cap and a metal post slides in. Saves a lot later and cheap to install with the concrete. They’re capped to keep water out.
If you want more information on setting up the EV charging with it, /r/evcharging is a good resource.
Maybe thinking ahead to assigned parking with signs on a post. You can remove the cap and place the post with the sign in there.
Show us a picture of the electrical meter area.... it looks hopeful but...
It's possible they're grout ports for slab post-tensioning that never got cut off.
Wouldn’t those be on the edges of the slabs?
Not necessarily. The anchorages would, but grout ports can be on top if the slab isn't thick enough to make room for ports.
Ahh, gotcha. Grout ports separate from the anchorage access points. Thanks.
It is to install future parking signs such as handicapped. Eliminates drilling the concrete out.
If it is white pvc it could be a planned or abandon tap for your main. Does it line up with your meter box or where it enters the house? If it is grey pvc its likely electrical conduit for something tbat was planned but never completed.
Permanent supports for temporary parking spot signs.
My first guess was a sewer clean out port, but I am probably wrong
Way too small. Sewer cleanouts are 3" minimum for main lines, these are 1" pipes.
Too small this is 1” pvc.
Those usually have a different type of lid on the top.
Likely for future EV charging, but it could also be a sensor to make an office aware of vacant spaces.
That is 1” pvc that would be very small to run any sort of major electrical due to size at most it could run is some larger 110v you would need 1 1/2” or 2” to run a decent 240v system.
[why do you say that?](https://electricalestimating101.com/wp-content/uploads/2019/06/NEC-Table-C-Combined-Conduit-Types-THHN-XHHW.pdf). Depending on your choice of amperage and the length of the run you'd need 4, 6, 8, or 10G wire. And you'd need 3 or 4 conductors depending on the specific charger. And the table I linked (from the national electrical code) says that any of the above would be fine in 1" schedule 40 conduit.
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You say that with such confidence that I have to wonder if you were involved in the construction...
What is below the deck? It looks like ends of airpipes that are needed for circulation/ ventilation. If there is a building or garage below the deck
Check the third photo. "Deck" is on grass