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I realized that I had not explained what eventually happened when the corporate team took my car. They found a bad battery module and replaced it. Since then everything has been working great -- no sign of the problem at all. The interesting thing, however, is that the problem was not found...

Hi Steve, my monthly output ranges from 600 kwh ( December) to 1500 kwh (July ) on average on a Sunpower system (36 230W panels) that is rated at peak output of 7.33 KW on the AC part of the inverter (I think its 8.28 kw DC). The shape of the curve in the table I included is typical, and is...

at 7cents a kwh, it will be a long while before you break even here, but you knew that. I have an 8 kw system and on some days the outflow can be fairly large. Here's some data (sorry, I suck at formatting): Date Time total energy produced(kWh) total energy consumed(kWh) 4/4/12 0:00 0 1.53...

Hi Sports Fans, Here's the next chapter of the story of the missing capacity. Pretty interesting. The Nissan dealer responded to my email, and the Service Advisor, Jesse, agreed that I have a problem they need to fix. I pushed the issue today with Jesse and he promised action today. What...

I am not yet about to malign the dealer. Let's face it, we Leaf owners are early adopters. There is not a lot of real world data on these kinds of cars. That said, they (Nissan and the dealer) are responsible for fixing this problem. The dealer assured me that they would. I believe them when...

Hi everyone, I wanted to update everyone on my problem. With all of the data I have collected, I seem to have lost around 30 miles of range. I took the car into the dealer and they ran diagnostics, upgraded the firmware, and checked capacity, and my driving characteristics. They found everything...

Right, I had seen that chart. But note that in the range I was talking about, the chart is linear. Also note that the chart shows that at the speed I was traveling I should have been able to go 33 miles or so going from 9 bars showing to 3 bars showing, rather than 11 (at 50 to 55 mph). Still...

Hi again. Today I ended up pretty much like yesterday. Do take a look at the following readings: Bars used 4 9 10 11 Miles traveled 28.1 39.5 41.8 55.3 Mi/kwh 5.7 5.4 5.1 5.1 The first entry was the commute down. I actually used 3 bars, but after turning the...

Yes, this is definitely part of the strange behavior. Let me explain more precisely how I know about how long it takes to charge. I actually have two sources: 1) I have a schneider electric charger that roughly keeps track of time charging. It shows eight segments of a circle. Each segment...

I continue to get strange behavior, and the problem seems to have manifested itself a little differently today. I decided to be very careful and conserve battery on the way to work today, given that I was not sure if I would have sufficient battery to get back. So, I kept speed below 55. I...

Yes, I have all capacity bars showing. The energy used part all adds up, as you say. My electric usage (from my sunpower monitor) shows the exact same pattern as normal. The big anomaly is the sudden drop in battery power remaining that started after driving about 10 miles on my way to work. I...

Thanks, everyone for the comments, and misery loves company, palmermd, so I guess I am "happy" to see someone else with the problem. I will let you know how it goes on the commute tomorrow. This is a significant issue, as, given the data I had at hand, I might not have made it home if I had...

I have not seen an experience quite like this described in the forums: Today, on my normal commute I had a sudden loss of range. I commute from Livermore, CA to Sunnyvale, elevation 484 feet to 20 feet, 57 miles, round trip. Have done this about 180 times, and have 11,200 miles on the...

Thats a great point! Do you have a reference for that? I'd love to use it. Has anyone seen an overall analysis of energy efficiency? One that includes The cost of producing electricity, the amortized cost of producing the batteries, etc. That will get more and more favorable over time for EVs...

I do have an 8.2kWDC/7.3 kWAC system in Livermore, CA. I got over 13,300 kwh of solar power in the first year of use. I plug my Leaf into a 110 wall socket in the garage, and use about 8 kwh on average everyday to charge it. The question of whether my Leaf is solar powered is hard to answer, as...

I charged my Leaf there last week. G3, Best spot at the International terminal, as pictured in above post. There are 25 stations at SFO, 5 at the International terminal. I did not have a chargepass card, so I just called the phone number on the charging station, and they fixed me up. I did...