Home charging data after 1,110 miles.

[Jimmy2]

Yes and the back half of the house also. A total of 29 panels with a rated output of 10.2 KWh. Tesla battery covers the night requirements with a capacity of 13.4 KWh. Slick setup. Even with the car we are sending a ton of energy back to TVA, our electrical grid source

Very cool. Just the thought of not having to rely on Progress Energy (here) is incentive enough for me to make the move. Sounds like the trick is to size it right for your needs (for home and car) and purchase the home battery system so you can charge car at night. Seems like it would also be very important to choose the right panels, battery storage facility and installer?

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[Blackbluff]

Very cool. Just the thought of not having to rely on Progress Energy (here) is incentive enough for me to make the move. Sounds like the trick is to size it right for your needs (for home and car) and purchase the home battery system so you can charge car at night. Seems like it would also be very important to choose the right panels, battery storage facility and installer?

I agree. We chose Sunpro and have not been disappointed. They use the best equipment in the industry and the results have been extraordinary for us. In fact, our decision to go with the MME was based on the output of the system even on cloudy days. I don't know if the chart will post but here is an example.
Gerald Blackwood (enphaseenergy.com)

 

[Jimmy2]

I agree. We chose Sunpro and have not been disappointed. They use the best equipment in the industry and the results have been extraordinary for us. In fact, our decision to go with the MME was based on the output of the system even on cloudy days. I don't know if the chart will post but here is an example.
Gerald Blackwood (enphaseenergy.com)

Thanks for sharing, but the link is password protected. But I'll check out the Sunpro website.
Best regards.

 

[Tinus]

Has anyone experienced that liters of water leaks from your car in your garage after driving in the rain?

 

[crownmountain]

Has anyone experienced that liters of water leaks from your car in your garage after driving in the rain?

not even a little

 

[guyofthesky]

Your 8 panel array is going to output ~2400 watts\hr, not counting DC\AC conversion loss. If you have a 32amp wall unit, your car will be using ~7500 watts\hr. Depending on how your system is designed, if you want to ensure only your own solar generated electricity is powering your car, you will need to use a 120v wall unit plugged into a 20amp outlet. Sure, you can count on excess power sold to the electric company to offset the cost of purchasing the extra power your wall unit is supplying, but since most power companies only pay you ~1/3 of the Kwh price they charge you when you buy from them, you will need to export 3 times as much solar generated power to offset the price difference.
I've had to dial down the amperage of my 48A Ford Wall Charger to make sure my FE uses only as much power as my 7kw solar array can produce. If I need a fast charge I just temporarily, manually reset the wall units output.

Actually, about 3/4 of US states offer net metering.

https://www.macheforum.com/site/threads/home-charging-data-after-1-110-miles.6140/

 

[guyofthesky]

Usually, but even that depends on the situation. Like whether the person can charge during sunlight vs night, whether they have TOD pricing, and what their net metering rates are.

For instance, some people may work during the day and have to charge at night (paying grid rates). If there's no TOD pricing, that could be something like $0.13/kWh. If their net metering rates are closer to the wholesale cost of electricity (say, $0.05/kWh), it could cost them $0.08/kWh to charge the car. That difference may not be enough to overcome the costs of the solar system.

Just depands on the situation. If their situation was favorable enough to justify solar to begin with, you're likely right that it'll still save them money charging the car too.

Hmm. I thought that "net metering" meant that you get paid the retail rate for your excess kwhr. A different, lower, rate is not net metering.
Am I confused?

 

[guyofthesky]

My Good News: Premium 2WD Extended Range Battery. Here is my driving style. I am old and the vehicle has been in “Whisper” mode the entire time. I use one pedal driving (outstanding) and have never floored the vehicle, not once. I use cruise control as much as possible and never drive over 70 if possible, been over a couple of times.

I began with keeping stats at 286 miles. Took that long to get my Excel file together. I break the 88% battery into 100% or .88 kWh per one percent. One Example, I drove 188 miles, the FordPass indicates I used 58% that is 51.04 actual kWh used. Estimated miles per kWh is 3.68 or 324.14 miles on a full charge.

Currently, I have 2,709 miles minus 286 (Starting Point). I have driven 2,423 miles using 661.76 kWh which is 3.66 miles per kWh and the estimated average on a full battery is 321.49 miles.

I did my homework and put solar on the house in July 2019. I hoped to cover the house usage and the eventual BEV. I knew at the get go that we were producing more then the house would use. I have not received a bill for electric, just one time for connection charges. During the three months with the MME I currently have 1,346 kWh credits beyond what we used in the house and MME. (Did my homework on meter reading)

We purchased the MME for the projected 305 miles so we could go everywhere we need to without taking time for charging away from the home and it is working. Not on cent spend on electricity so far. Twice we went to Chumash Casino in Solvang, CA. Customers have access to 10 Phrase 2 chargers for “Free” which produced 16 mph. My home charger, using the one provided with the MME is 22 mph.

All in all, incredibly pleased with the MME as it exceeds our expectations. Yes, a couple of things could be better, but nothing is perfect. Wherever we go often people come to look, or we get thumbs up. That has never happened before in my lifetime with a production vehicle.

You are doing a great job. I admire your environmental efforts. Brilliant!

But please, just once, floor it. Just to feel it one time.

 

[guyofthesky]

OK I have to rethink getting solar. Tesla has 7,000 solar panel/battery wall customers in my area Hmmm. Seems like it would take 13 years to get the money back and I too am getting up there in age. Would hate to pay it off and drop dead What to do?

Easy. But it, and don't drop dead.

 

[guyofthesky]

Very cool. Just the thought of not having to rely on Progress Energy (here) is incentive enough for me to make the move. Sounds like the trick is to size it right for your needs (for home and car) and purchase the home battery system so you can charge car at night. Seems like it would also be very important to choose the right panels, battery storage facility and installer?

I have had panels for maybe a decade. My thoughts are that batteries cost about the same as the panels, so if you don't mind relying on the power company for continuous power, you can save 50% on the installation and you get the benefit of cheaper electricity and increasing the amount of solar power in the world.

The batteries give you a degree of independence, usually less than a day, and they cost a lot. But it's more a philosophical decision, so you can ignore me completely and I'm fine with that.

 

[dbsb3233]

Hmm. I thought that "net metering" meant that you get paid the retail rate for your excess kwhr. A different, lower, rate is not net metering.
Am I confused?

You may be right. I thought it just meant the ability to sell it back to the power company, but maybe it specifically means "at the retail price" instead of the wholesales price? I'm really not sure. If so, I should have said "depends on the buy-back rates".

Power companies paying the full retail rate to customers never made sense to me. It's selling electricity to the power company, so it should be wholesale rates just like any other electricity they buy rather than generating themselves.

What makes more sense to me is a 2-tiered bill -- one tier paying the fixed costs for the grid and delivery to a customer, and the other tier for JUST the cost of the actual electricity consumed (which should be pretty close to the wholesale rate anyway).

 

[timbop]

Hmm. I thought that "net metering" meant that you get paid the retail rate for your excess kwhr. A different, lower, rate is not net metering.
Am I confused?

Net metering means you "bank" extra kwh you don't use that you send to the grid, and withdraw from that "kwh account" first if you draw from the grid. Then at the end of the period if you have kwh in your bank you get paid the wholesale rate, but if you "overdrew" your banked kwh you pay the residential rate for the extra kwh you used.

 

[dbsb3233]

Net metering means you "bank" extra kwh you don't use that you send to the grid, and withdraw from that "kwh account" first if you draw from the grid. Then at the end of the period if you have kwh in your bank you get paid the wholesale rate, but if you "overdrew" your banked kwh you pay the residential rate for the extra kwh you used.

So it's basically using the power company like personal battery storage (unless generating too much for the whole billing period, in which case they buy it at the wholesale rate)?

That makes sense. I do hope they include a charge for that storage service though.

 

[timbop]

I do hope they include a charge for that storage service though.

I'm not sure what you mean by that. The extra power you sent to the grid gets used (with enough extra solar they don't need to fire up peaker plants), not stored so there isn't a battery involved. So, no need for anybody to charge anyone else for "storage fees". The utility doesn't have to kick in expensive peaker plants, and in exchange panel owners "get their electricity back" at night.

 

[Nklem]

Data from my home ChargePoint Level 2 Logs the give me the actual recharge

ChargePoint (L2 network connected) provides log data of actual charge which I reconcile with the FordApp report of charge received. My results are limited to two decimal places not rounded up or down. More date over a longer periord is warrented. I have some home built OBD tools and custom scripts that helped me verify the charge data but I am looking for any new OBD tools that might connect up and provide such.

Excellent. Charge Point is great and the data is the most accurate and tracked/logged/costed at every charge. Great efficiency numbers! I pick up mine tomorrow (bought it today) after a 2 day 300 mile test drive with a demo. I will track nearly every kW charged from home, but work is 100% free with no metering, so I will have to consider that free.

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