Anyone looking at Landed?

[Tamagosando]

tapping on the experience of all the landed owners here.

if I need to do a total revamp of the landed, change the water piping, upgrade the electricity and rewire the whole house, hack away all the existing flooring and tiles and toilets, extend the car porch and shift manhole out of the house.

would it be better to engage a direct builder to save cost or engage an architect to manage all these but architect charge a 15% fee on the total renovation cost? thank you!

Congratulations on your new home! Please keep us updated on the exciting journey and what you’ve learnt. It will be very helpful for others like myself hoping to embark on this path as well.

 

[rlskyline]

Congratulations on your new home! Please keep us updated on the exciting journey and what you’ve learnt. It will be very helpful for others like myself hoping to embark on this path as well.

haha sure.
lucky I still have a place to stay under my wife name so I can slowly do up the reno

 

[limck]

haha sure.
lucky I still have a place to stay under my wife name so I can slowly do up the reno

since you're doing major works, do remember to provision for 3 phase EV charging if you've not thought about it. Also can consider installing PV panels as well. doing these now is easier than trying to retrofit later.

 

[Rxgn]

since you're doing major works, do remember to provision for 3 phase EV charging if you've not thought about it. Also can consider installing PV panels as well. doing these now is easier than trying to retrofit later.

for pv panels, do you sell back the energy to grid?

 

[limck]

for pv panels, do you sell back the energy to grid?

yes, grid tied and sell back. else the excess energy generated during the day is wasted

while the sell back price is slightly lower then the buying price from SP, it is better than nothing.

 

[estrangable]

for pv panels, do you sell back the energy to grid?

your installer will advise you but the process to get SP approval for sellback and installation of smart meter will take awhile.

 

[limck]

your installer will advise you but the process to get SP approval for sellback and installation of smart meter will take awhile.

ya, lead time about 8 weeks when I installed mine 2 years ago.
But actually the paperwork could be submitted early as well to cut down the lead time.

Cos unless the PV installer has ex-stock of the panels on hand, there is likely a lead time for the panels to be shipped in from factory and for them to arrange the installation schedule. So technically the paperwork can be submitted before the installation work commence.

For houses which have 4 or more physical storeys, SCDF fire submission and clearance is required as well. So there will be this additional cost for a QP to do the submission.

 

[nautilus]

If you're thinking of installing PV panels on your roof, you might want to think twice as it may affect the waterproofing. Whether the savings in energy costs offsets the potential issues with maintenance of the PV panels and roof over a prolonged period of time needs to be factored into the consideration.

 

[estrangable]

If you're thinking of installing PV panels on your roof, you might want to think twice as it may affect the waterproofing. Whether the savings in energy costs offsets the potential issues with maintenance of the PV panels and roof over a prolonged period of time needs to be factored into the consideration.

that is why u need to do it together during renovation so that any leaks can be resolved.

 

[estrangable]

ya, lead time about 8 weeks when I installed mine 2 years ago.
But actually the paperwork could be submitted early as well to cut down the lead time.

Cos unless the PV installer has ex-stock of the panels on hand, there is likely a lead time for the panels to be shipped in from factory and for them to arrange the installation schedule. So technically the paperwork can be submitted before the installation work commence.

For houses which have 4 or more physical storeys, SCDF fire submission and clearance is required as well. So there will be this additional cost for a QP to do the submission.

yes, i arranged with the installer 2 months beforehand. The contractor needs to coordinate with the installer on the schedule and also the usage of the scaffolding / ladders.

overall i installed close to 40 panels, 23+kw

 

[limck]

If you're thinking of installing PV panels on your roof, you might want to think twice as it may affect the waterproofing. Whether the savings in energy costs offsets the potential issues with maintenance of the PV panels and roof over a prolonged period of time needs to be factored into the consideration.

yes and no.

it depends on what is the current roof construction method, roofing material and how the installers are going to install the PV panels support structure.

If you have an RC roof and the installers are going to drill into the RC roof to secure the PV panel's structure, then you will likely encounter leaks in future. This is why even HDB does not allow (based on what I read) the PV installers to drill onto their roofs. Instead heavy blocks are used to weight the structure down.

For my house, I am using metal roof. So the PV panels structure is clamped onto the metal roof using purpose-built clamps with no drilling at all.

Even for tiled roof, there are special brackets that are to be used as well.

Ultimately, one has to talk to the installers on what method they are going to use to secure the panels onto the roof to avoid issues in future

 

[limck]

yes, i arranged with the installer 2 months beforehand. The contractor needs to coordinate with the installer on the schedule and also the usage of the scaffolding / ladders.

overall i installed close to 40 panels, 23+kw

mine is a 14.45kwp system using 34 panels of 425Wp each. basically maximised my main roof and car porch roof as well

yours should be using over 500Wp panels if based on 23kwp for 40 panels.

Are you selling your generated energy as REC as well?

 

[estrangable]

mine is a 14.45kwp system using 34 panels of 425Wp each. basically maximised my main roof and car porch roof as well

yours should be using over 500Wp panels if based on 23kwp for 40 panels.

Are you selling your generated energy as REC as well?

yeah 509WP panel from Jinko. For the REC, the installer submitted the papers for me.

After the PV installation, i also went ahead and installed the EV charger. Essentially my EV charging is free... as long as i am charging during the day time

 

[limck]

yeah 509WP panel from Jinko. For the REC, the installer submitted the papers for me.

After the PV installation, i also went ahead and installed the EV charger. Essentially my EV charging is free... as long as i am charging during the day time

back in late 2022 when I embarked on the PV project, I don't think there's 500Wp panels yet or ones which are sized for home use. Think max was about 450Wp back then. 3 quotes I obtained all were quoting me about 415Wp panels. But if I had done it during my house construction in 2019, I think the panels back then was only 2xxWp which is even lower.

I just got my $$ for sale of REC for 2024. few hundred $$$ to help reduce the ROI timeframe for the panels.

my EV charging is "subsidised" if charging during the day time. during the peak generation hours (11am to 1pm) will then be completely free... provided there's no clouds/rain. Even though need to pay more for SP electricity import, overall still cheaper than buying fossil fuel for the cars

 

[Tamagosando]

What is the electrical supply needed for EV charging? I read somewhere that DC charging requires 3-phase 100amp, while for AC 3-phase 32amp is sufficient. Is this correct?

 

[limck]

What is the electrical supply needed for EV charging? I read somewhere that DC charging requires 3-phase 100amp, while for AC 3-phase 32amp is sufficient. Is this correct?

most EVs in SG accept DC and AC single phase for charging so even if you have AC 3 phase charger, it's not going to be fully utilised.

however if you want to provision for future, it's always good to just pull a set of 3 phase cables first so that you can swap your single phase charger for a 3 phase charger if your future EV supports 3 phase charging.

most home chargers can only use up to AC 32A regardless of single or 3 phase charging.

if your house have 3 phase 63A incoming from the grid, it should be sufficient unless you are using power like crazy all the time. Even if you are just installing a single phase charger, you will need to know your load pattern for each of the phases as you won't want to overload any of the phase when full 32A is being used for charging.

it's unlikely you want to install a DC charger as a DC charger is huge and very expensive and will likely require more than 100A incoming. Unless you are staying in a GCB, you will be unlikely going to get more than 100A incoming for your house. incoming of 100A will require yearly LEW inspection as well.

 

[Tamagosando]

most EVs in SG accept DC and AC single phase for charging so even if you have AC 3 phase charger, it's not going to be fully utilised.

however if you want to provision for future, it's always good to just pull a set of 3 phase cables first so that you can swap your single phase charger for a 3 phase charger if your future EV supports 3 phase charging.

most home chargers can only use up to AC 32A regardless of single or 3 phase charging.

if your house have 3 phase 63A incoming from the grid, it should be sufficient unless you are using power like crazy all the time. Even if you are just installing a single phase charger, you will need to know your load pattern for each of the phases as you won't want to overload any of the phase when full 32A is being used for charging.

it's unlikely you want to install a DC charger as a DC charger is huge and very expensive and will likely require more than 100A incoming. Unless you are staying in a GCB, you will be unlikely going to get more than 100A incoming for your house. incoming of 100A will require yearly LEW inspection as well.

Wow, thank you very much for the thoughtful and detailed advice!

 

[hovivi]

I recently installed polycarbonate awning and it’s noisy when it rains as water fall from roof ((3rd storey) onto the ground floor awning. Anyone have any suggestion on noise reduction? I’m thinking of sticking rubber mat on the awning but will be ugly.. either on top or below

 

[abcde78]

I recently installed polycarbonate awning and it’s noisy when it rains as water fall from roof ((3rd storey) onto the ground floor awning. Anyone have any suggestion on noise reduction? I’m thinking of sticking rubber mat on the awning but will be ugly.. either on top or below

Don't think got solution other than switching to glass.i was using polycarbonate awning too. Noisy but cheap

 

[rlskyline]

I recently installed polycarbonate awning and it’s noisy when it rains as water fall from roof ((3rd storey) onto the ground floor awning. Anyone have any suggestion on noise reduction? I’m thinking of sticking rubber mat on the awning but will be ugly.. either on top or below

how much is it?