Dynamic Power Management

[Chris Gibney]

I am an Electrical Contractor and very few people have an electrical panel that can support high speed charging (60A breaker +) to be installed at their home. Please do some R&D with products like Teslas Dynamic Power Management. This is really important and should be developed ASAP.

 

[LastDayScout]

I am an Electrical Contractor and very few people have an electrical panel that can support high speed charging (60A breaker +) to be installed at their home. Please do some R&D with products like Teslas Dynamic Power Management. This is really important and should be developed ASAP.

Welcome!

 

[dreamweaver]

I am an Electrical Contractor and very few people have an electrical panel that can support high speed charging (60A breaker +) to be installed at their home. Please do some R&D with products like Teslas Dynamic Power Management. This is really important and should be developed ASAP.

Scout. “People. Connections. Community. Authenticity." Welcome to the Scout community. Enjoy the ride.

 

[R1TVT]

Not sure where this data is coming from. Every house I have owned as had room for more breakers on the panel. We might need a sponsors page.

 

[Cranky Canuck]

I am an Electrical Contractor and very few people have an electrical panel that can support high speed charging (60A breaker +) to be installed at their home. Please do some R&D with products like Teslas Dynamic Power Management. This is really important and should be developed ASAP.

That is completely unnecessary as very few people need a 60A breaker to charge their EV. Most people will be fine with a 40A circuit (providing 32A). This really is a non-issue. Even if you want a high power home charger for some reason there are plenty on the market already that can do power sharing if needed. Heck, you can just use the Tesla home charger if you want. This is a non-issue.

It's amusing to me how non-EV owners expect an EV to need so much electricity but the reality is most people with a 100A panel will do just fine. An EV uses about as much energy as an electric hot water tank so it's funny because saying you're panel can't support an EV is like saying your house can't have hot water. Sure some EVs CAN use a 60A or even 90A circuit but there's no real need for that. Most of the time you're charging the vehicle overnight so it really doesn't matter if it takes 4 hours or 8 hours, you're sleeping either way. Some people might not even need a Level 2 charger at all and will do just fine with a standard 110V outlet. You can also derate most chargers down to 240V at 20A if needed so really there are lots of options out there that don't require any additional tech or a panel upgrade.

You also typically aren't doing a full charger either. Most of the time you're just replacing the charge you used during the day. It's not like a gas car where you usually wait until the tank is empty to fill it up again. With an EV you can plug it in whenever you want - every night if you want to! - so you really only need to replace the range you used that day which likely isn't the full amount.

 

[LastDayScout]

I am an Electrical Contractor and very few people have an electrical panel that can support high speed charging (60A breaker +) to be installed at their home. Please do some R&D with products like Teslas Dynamic Power Management. This is really important and should be developed ASAP.

I would like to have one of the new 19.2kw level 2 chargers, but they really are not necessary. I have a 50A fuse allowing for 40A to the charger. I just use Flexible Fast Charger and the NEMA 14-50 adapter on a 240V outlet to charge at 40A up to 9.6kW. It is plenty fast for home use.

 

[AlanL]

Not sure where this data is coming from. Every house I have owned as had room for more breakers on the panel. We might need a sponsors page.

I think it is service capacity more than room for a breaker. The need to allow for current use plus an additional whatever amps for the charger. I agree though that overnight charging does not need 60A. When I had a 100A subpanel installed for my wood shop the electrician was surprised our service could support it.

 

[Cranky Canuck]

I think it is service capacity more than room for a breaker. The need to allow for current use plus an additional whatever amps for the charger. I agree though that overnight charging does not need 60A. When I had a 100A subpanel installed for my wood shop the electrician was surprised our service could support it.

Even then, there are chargers on the market like EV Duty which have the ability to monitor a home's current draw and will limit the use of the charger until there is enough capacity on the panel. So if you have a 100A panel with a hot tub for example, it'll wait until the hot tub is off before allowing the charger to run. No need for a service upgrade or new panel.

 

[SpaceEVDriver]

I would like to have one of the new 19.2kw level 2 chargers, but they really are not necessary. I have a 50A fuse allowing for 40A to the charger. I just use Flexible Fast Charger and the NEMA 14-50 adapter on a 240V outlet to charge at 40A up to 9.6kW. It is plenty fast for home use.

The 19.2 kW (80A current, 100A circuit) EVSE is only useful for a single vehicle if the vehicle has two converters built into it. Very few do. I haven't seen anything from Scout that indicates whether they will include the extra hardware. Ford stopped installing the two converters on their Lightnings. I have it. It's totally unnecessary most of the time. If the EVSE is capable of charging two vehicles at once, an 80A EVSE would be more useful.

To the OP, a solution to the perceived problem is a Distributed Energy Resources attachment that plugs into the meter and provides a dedicated breaker just for a high current need. This removes the need to upgrade the panel, saving considerable costs.

Thread 'EV Charging solution without having to upgrade your electrical service entrance panel.'

Tuesday at 1:35 PM

Tom Moloughney traveled to Starksboro, Vermont to record the first ConnectDER EV meter socket adapter installation in the state. This device will allow many people to install an electric vehicle charger at home who otherwise couldn't, due to the capacity constraints of their home electric service.

• SpaceEVDriver
• Replies: 1
• Forum: GENERAL DISCUSSION

• 

 

[J Alynn]

That is completely unnecessary as very few people need a 60A breaker to charge their EV. Most people will be fine with a 40A circuit (providing 32A). This really is a non-issue. Even if you want a high power home charger for some reason there are plenty on the market already that can do power sharing if needed. Heck, you can just use the Tesla home charger if you want. This is a non-issue.

It's amusing to me how non-EV owners expect an EV to need so much electricity but the reality is most people with a 100A panel will do just fine. An EV uses about as much energy as an electric hot water tank so it's funny because saying you're panel can't support an EV is like saying your house can't have hot water. Sure some EVs CAN use a 60A or even 90A circuit but there's no real need for that. Most of the time you're charging the vehicle overnight so it really doesn't matter if it takes 4 hours or 8 hours, you're sleeping either way. Some people might not even need a Level 2 charger at all and will do just fine with a standard 110V outlet. You can also derate most chargers down to 240V at 20A if needed so really there are lots of options out there that don't require any additional tech or a panel upgrade.

You also typically aren't doing a full charger either. Most of the time you're just replacing the charge you used during the day. It's not like a gas car where you usually wait until the tank is empty to fill it up again. With an EV you can plug it in whenever you want - every night if you want to! - so you really only need to replace the range you used that day which likely isn't the full amount.

Working for a large regional builder we offer a 50amp car charger option but 2-pole, 40 amp is all you technically need. Not sure why you really need high speed charging at home.

 

[LastDayScout]

The 19.2 kW (80A current, 100A circuit) EVSE is only useful for a single vehicle if the vehicle has two converters built into it. Very few do. I haven't seen anything from Scout that indicates whether they will include the extra hardware. Ford stopped installing the two converters on their Lightnings. I have it. It's totally unnecessary most of the time. If the EVSE is capable of charging two vehicles at once, an 80A EVSE would be more useful.

To the OP, a solution to the perceived problem is a Distributed Energy Resources attachment that plugs into the meter and provides a dedicated breaker just for a high current need. This removes the need to upgrade the panel, saving considerable costs.

Thread 'EV Charging solution without having to upgrade your electrical service entrance panel.'

Tuesday at 1:35 PM

Tom Moloughney traveled to Starksboro, Vermont to record the first ConnectDER EV meter socket adapter installation in the state. This device will allow many people to install an electric vehicle charger at home who otherwise couldn't, due to the capacity constraints of their home electric service.

• SpaceEVDriver
• Replies: 1
• Forum: GENERAL DISCUSSION

• 

Sorry I keep saying charger. I know the charger is actually in the vehicle. So, let me address what a EVSE is for those that do not know. It stands for Electric Vehicle Service Equipment. That is whatever equipment you plug or wire into your house (or electrical source). It is the device between your electrical source and the vehicle.

 

[R1TVT]

I think it is service capacity more than room for a breaker. The need to allow for current use plus an additional whatever amps for the charger. I agree though that overnight charging does not need 60A. When I had a 100A subpanel installed for my wood shop the electrician was surprised our service could support it.

Yes, when I said "room" I was alluding to the original post, which was in reference to room for 60A (capacity + breaker). I have done this on three different panels (adding a 60A circuit to support 48A current using 6AWG) without having to upgrade my service at any panel.

I will say that the only time it is really nice to have faster charging speeds at 48A is when you might have forgotten to plug in and suddenly need to go somewhere long distance on short notice. Definite edge case though, and you could always just go to a DCFC en route.

 

[SpaceEVDriver]

Yes, when I said "room" I was alluding to the original post, which was in reference to room for 60A (capacity + breaker). I have done this on three different panels (adding a 60A circuit to support 48A current using 6AWG) without having to upgrade my service at any panel.

I will say that the only time it is really nice to have faster charging speeds at 48A is when you might have forgotten to plug in and suddenly need to go somewhere long distance on short notice. Definite edge case though, and you could always just go to a DCFC en route.

Exactly this.

I had load capacity and physical room in my panel when I bought my Lightning. The 80A Charge Station came with the truck so I installed it. I wouldn’t have purchased such a high current option if it wasn’t included in the purchase price of the truck. There have been a couple of times when I’ve appreciated the extra charge current, but it’s rarely needed. In fact, most of the time I have the EVSE derated to 70A or lower simply because I don’t need it.

 

[SpaceEVDriver]

Sorry I keep saying charger. I know the charger is actually in the vehicle. So, let me address what a EVSE is for those that do not know. It stands for Electric Vehicle Service Equipment. That is whatever equipment you plug or wire into your house (or electrical source). It is the device between your electrical source and the vehicle.

I apologize. I wasn’t trying to correct you. It’s habit for me to use “EVSE." I’m not a fan of pedantic corrections on the internet and didn’t intend to be “that guy."

 

[SpaceEVDriver]

Working for a large regional builder we offer a 50amp car charger option but 2-pole, 40 amp is all you technically need. Not sure why you really need high speed charging at home.

Few people do. We made it almost two years with 120V, 12A charging at home and it was fine most of the time.

 

[MasterSpam]

I had an electrician add a 240v, 50A breaker for a Level 2 charger and since I seldom expect to need to charge and go again, I usually limit charging to no more than 10A but then I'm only charging a 17KWH battery in my PHEV. That's for now as I don't need more.

 

[MasterSpam]

I had an electrician add a 240v, 50A breaker to my 100A panel for a Level 2 charger and since I seldom expect to need to charge and go again, I usually limit charging to no more than 10A but then I'm only charging a 17KWH battery in my PHEV. That's for now as I don't need more.

 

[LastDayScout]

I apologize. I wasn’t trying to correct you. It’s habit for me to use “EVSE." I’m not a fan of pedantic corrections on the internet and didn’t intend to be “that guy."

No, I didn't take it that way. I was really correcting myself and not trying to perpetuate the wrong terms to people that are just starting to learn about EVs and charging. It was very confusing for me back in 2019 with my first EV.