al2020

EQS has almost 110 kWh battery. Tesla’s Powerwall cost over $10K. So EQS has equivalent of 11 Powerwalls worth almost $110K. Why don’t we have bi-directional charging options like ones offered in Japan: “The CHAdeMO (“Charge de Move”) charging standard there supports bidirectional charging, which is the prerequisite for applications such as V2G (“Vehicle-to-Grid”) and V2H (“Vehicle-to-Home”). This means that the EQS can be used as a power bank for energy from the home photovoltaic system or supply the household with energy in the event of a failure in the public main systems.”


Any idea when and if be-directional support will be offered in the US? How can we “demand” such an option?

TH22

The new Ford F150 lightning with larger battery (130kWh) and the V2H option can do it. I was thinking of getting one as a second vehicle.

stealth.pilot

Personally I think it is a waste of time. If I used my car to power my house at night, I would have difficulty going to work in the morning. Same thing if I had to charge it during the day.


An EV is no substitute for Solar, a Cummins generator and a powerwall. At least not for those of us who want our homes powered 24x7 and want to be able to drive whenever we want.

Diesel Benz

The EQS battery is too expensive to be used as a backup battery to provide electricity for home. Could be useful as an emergency power source, at home and on the road giving help for fellow EVs.

The Japanese cars that I've seen, charge at high DC power but they only provide single phase AC output at a quite low wattage. Still useful for some tasks but wouldn't help much to balance the power grid load or such.

TH22

We have a generac 22kWh with a digital transfer switch that can run the whole house in case of power outages. It runs on underground natural gas. Since we’re in hurricane territory, it’s necessary. A vehicle with V2H capability could be handy for hurricane season. I think the option is less than buying a generator but a full charge will only run the house for a few days.

hlothery

I, too, have the Generac 22kW, running on natural gas.....never know about that Texas power grid!. I don't think the back-up battery option is very good for a natural disaster, which may knock out power for several days. Now, if I had a solar array, I might reconsider.

perlfather

Also with 22kW generators on propane at both houses, one with solar. Nevertheless, I would be happy with a bidirectional option. Without the use of the electric dryer and electric range, you could probably go for ~1 week with the 107kWh battery. You would have plenty of advance warning (of high winds, snow, storms, etc.) to charge it up and be ready for a power outage. In NE we have frequent power outages, that typically only last a few hours to a few days. If electric car manufacturers do not offer such an option I am sure, enterprising engineers will come up with one as the circuitry is not very complicated (where to tap off) . Yes there are safety issues, voiding warranty issues, etc. but once electric cars are sold in larger numbers, people will become innovative to create new products.

TH22

Hurricane Irma knocked the power out for a day or two here back in 2017. It was a non event for us. Totally worth it. The V2H backup could be very appealing for a lot of folks without generators. Usually, power outages last for a few days. Don’t quote me but I think the F150 lightning option was under $7k. Someone told me recently it’s about $15k to install a generator now.

c4004matic

After Maria most of PR was without electricity for months some areas a year.. The battery of an EV would be of little use in that scenario. Nothing beats a natural gas generator it will run for weeks or mths if necessary. In a natural disaster the gas system is the last thing to go if ever.

bgrewal

unless you are in California like me and the Natural disaster happens to be the earthquake Then gas will likely be off.

c4004matic

After Maria most of PR was without electricity for months some areas a year.. The battery of an EV would be of little use in that scenario. Nothing beats a natural gas generator it will run for weeks or mths if necessary. In a natural disaster the gas system is the last thing to go if ever.

c4004matic

I thought about that caveat but left it out😁
California the land of disasters fire, flood, earthquakes, drought but no hurricanes! The only thing missing is a nuke or 2!

TH22

That’s why we went with a generator. We’ve been through a few of these. Sometimes it can be a week or two but most the time the power is out for just a few days. Having the car as backup with little capital outlay may be a great option for some. The PR thing is something different. They did get hit hard but a friend of mine installs large industrial (city) temporary power plants all over the world, a mix of turbines and diesel. He was in PR after that and said the equipment and facilities were in disrepair and in really poor shape prior to the storm. It was a complex problem.

c4004matic

The electric system in PR has been in shambkes for decades Maria simply took all the ban-daids off. Chronic under investment ludicrous fee schedules, chronic corruption the list is endless. Dont worry Texas isnt far behind....