News
Solar Power Monitoring and Billing through SolarCity
After experiencing some growing pains with my SolarCity installation, I’m happy to say that I’ve been up and running since February 23rd of 2015 and ready to share my experiences with how the system is monitored and billed.
Savings
The savings on your electricity bill begin immediately after installation of your SolarCity system, and affects both the supply and delivery portions of your bill.
Savings can be pretty dramatic depending on the size of the system and, obviously, how much sunshine your region experiences. The following utility bill is a great example of how I was able to reduce my energy dependence from the grid by over 90%.
However, despite the reduction in energy needs from my utility company, the cost is not directly proportional to the amount of energy used. Here’s why.
Billing
Having such a drastic reduction in kWh needed from the grid actually comes with a price. Almost everyone who signs up with SolarCity opts-in to a Power Purchase Agreement (PPA) which means you pay nothing upfront (for the gear, install etc.), but you pay SolarCity for every kWh their system generates. That rate can be variable or fixed. I pay a fixed rate of $0.1420 per kWh generated for 20 years. That may sound high to you but considering my local electricity rate is $0.2470, I’m saving 43% per kWh.
It takes SolarCity some time to get up and running with their billing system. For me it took them 3 months to send me the first bill and because of that I received a hefty bill (thankfully late winter months) for all 3 months in one shot. After that, the bills arrive monthly (note that SolarCity requires EFT/Autopay to be set up).
The bills are simple and only state the amount of kWh generated, the rate you pay, and the total amount owed.
SolarCity collects data generated through their system via a standard internet connection, which they also use for billing purposes. On the first (large/3 month) bill I received, I noticed a difference of 10% (additional cost for me) between the billed amount and the amount the system had reported being generated so I naturally brought this to their attention. The customer service folks that I spoke with weren’t of much help and just told me to read each the meters at the beginning and end of each month if I truly want an accurate reading of how things get billed. So, that’s what I did.
Since inception I’ve saved $320 (over roughly 3 months) or about 42% off what I would have paid National Grid. And the system cost me nothing to install (I actually got a $1,000 Tesla-owner check from them).
They also have an estimated cost savings on the front page when you log in but it’s totally incorrect:
The mistake they made here is that they’re assuming your electricity rate doesn’t change over time. My electricity rate rose significantly after I signed up for SolarCity and because of that I’m getting a larger savings than what they’re reporting.
Monitoring
Monitoring happens online through MySolarCity.com. The interface is geared more towards new referrals than for actual owners of their system. The section I use most often is the Power Guide.
Power Guide gives an hour by hour break out of your energy generation along with the weather pattern for that day (ie. how much daylight, cloud coverage …). Hovering over each colored bar will show you the energy generated per inverter. The data can be downloaded in a CSV format and then imported into Numbers or Excel for your own post processing.
If you have multiple inverters, the CSV data for the day is a bit of a pain to analyze since it also includes the energy generated every 15 minutes per inverter.
Power Guide also includes a summary for the year.
The platform also provides a view of your energy generation as it happens in real-time which updates continuously.
Having this features allows you to watch the sun rise and set as viewed through the perspective of your panels which is kind of fun.
It’s not totally accurate as I’ll see data from certain days which look completely off.
API – Not
I’ve set up automated tweets for detection of Tesla Superchargers in real-time and decided to the same by sharing my SolarCity data through my home-grown program that fetches the data from Power Guide and then tweeting it.
It would be really nice if SolarCity decided to create a simple REST API that would allow owners to fetch their data.
Summary
SolarCity makes a lot of sense when it comes to cost savings and they’re able to provide this with no upfront cost to the owner. One needs to analyze the effective savings based on the cost incurred when generating energy through the SolarCity system versus your electricity cost, and then decide if the savings is worth the hassle. I’d recommend filling out their contact form and sign up for a consultation to get started.
The billing and monitoring side of SolarCity could definitely use some improvement, and hopefully this will improve over time as the business continues to grow.
I hope this post and series has been helpful. Let me know if you have any questions or thoughts in the comments below.
Elon Musk
Tesla preps for a harsh potential reality if Musk comp vote doesn’t go to plan
A successful vote for Tesla would see the compensation package get approved. But there is always the possibility of a rejection, which would likely see Musk leave the company.
Tesla could be forced to look for a new CEO in the coming months, as a crucial November 6 Shareholder Meeting vote will determine whether Elon Musk will stick around.
A major vote is coming up at the 2025 Tesla Shareholder Meeting, as investors will determine whether Musk should be given a new compensation plan that would award him up to $1 trillion and more than one-fourth of the total voting power within the company.
Tesla board chair reiterates widely unmentioned point of Musk comp plan
A successful vote for Tesla would see the compensation package get approved. But there is always the possibility of a rejection, which would likely see Musk leave the company.
“My fundamental concern with regard to how much voting control I have at Tesla is if I go ahead and build this enormous robot army, can I just be ousted at some point in the future? That’s my biggest concern,” Musk said at last week’s Earnings Call. “That’s what it comes down to in a nutshell. I don’t feel comfortable wielding that robot army if I don’t have at least a strong influence.”
Tesla Board of Directors Head Robyn Denholm has been on somewhat of a PR tour over the past few days, answering questions about the compensation plan, which is among the biggest issues currently for the company.
Denholm told Bloomberg yesterday that Tesla investors need to be prepared for Musk to abandon ship if the package is not approved, which brings on a new question: Who would take over the CEO role?
That is a question Denholm also answered yesterday, bringing forth the conclusion that Tesla would not look for an outside hire if Musk were to leave the company. Instead, it would promote someone internally.
The way it was reported by Bloomberg and Reuters seems to make it seem as if Tesla is preparing for the worst, as it states the company “is looking at internal CEO candidates,” not preparing to do so.
Of the executives at Tesla who immediately come to mind as ideal candidates for a potential takeover should Musk leave, Tesla China President Tom Zhu and Head of AI Ashok Elluswamy both come to mind. Zhu has monumental executive experience already, as he was appointed to the role of Senior VP of Automotive back in December 2022.
He then returned to China in 2024.
It seems Tesla wants to align its future, with or without Musk, on the same path that it is currently on, and internal candidates might have a better idea of what that looks like and truly means.
News
Tesla Full Self Driving (FSD) is nearing approval in a new country
As per the official, Tesla’s Full Self-Driving system could be enabled in Israel in the near future.
It appears that Tesla FSD (Supervised) is heading to a new country soon, at least based on comments from Israel’s Transport and Road Safety Minister Miri Regev.
As per the official, Tesla’s Full Self-Driving system could be enabled in Israel in the near future.
Israeli drivers are pushing for FSD rollout
While Tesla’s FSD is already operational in markets like the U.S., Canada, and Australia, Israeli owners have long been unable to use the feature due to regulatory barriers. Despite its premium price tag, however, numerous Tesla owners in Israel have noted that the technology’s safety benefits, at least when approved for real-world use in the country, justify its cost.
It was then no surprise that nearly 1,000 Tesla owners in Israel have already petitioned the government to greenlight FSD’s domestic release in Israel. In a post on X, Regev seemed to confirm that FSD is indeed coming to Israel. “I’ve received the many referrals from Tesla drivers in Israel! Tesla drivers? Soon you won’t need to hold the steering wheel,” she wrote in her post.
FSD’s regulatory support in Israel
Regev stated that her Ministry views promoting innovative technologies as essential to improving both road safety and smart mobility. A working group led by Moshe Ben-Zaken, Director General of the Ministry of Transportation has reportedly been tasked to finalize the approval process, coordinating with regulatory and safety agencies to ensure compliance with international standards.
In a comment to Geektime, Israel’s Ministry of Transportation and Road Safety noted that Regev is indeed supporting the release of FSD in the country. “Minister Regev sees great importance in promoting innovative technologies, and in particular in the entry of advanced driving systems (FSD) into the Israeli market, as part of the ministry’s policy to encourage innovation, safety, and smart transportation,” the Ministry stated.
Investor's Corner
Bank of America raises Tesla PT to $471, citing Robotaxi and Optimus potential
The firm also kept a Neutral rating on the electric vehicle maker, citing strong progress in autonomy and robotics.
Bank of America has raised its Tesla (NASDAQ:TSLA) price target by 38% to $471, up from $341 per share.
The firm also kept a Neutral rating on the electric vehicle maker, citing strong progress in autonomy and robotics.
Robotaxi and Optimus momentum
Bank of America analyst Federico Merendi noted that the firm’s price target increase reflects Tesla’s growing potential in its Robotaxi and Optimus programs, among other factors. BofA’s updated valuation is based on a sum-of-the-parts (SOTP) model extending through 2040, which shows the Robotaxi platform accounting for 45% of total value. The model also shows Tesla’s humanoid robot Optimus contributing 19%, and Full Self-Driving (FSD) and the Energy segment adding 17% and 6% respectively.
“Overall, we find that TSLA’s core automotive business represents around 12% of the total value while robotaxi is 45%, FSD is 17%, Energy Generation & Storage is around 6% and Optimus is 19%,” the Bank of America analyst noted.
Still a Neutral rating
Despite recognizing long-term potential in AI-driven verticals, Merendi’s team maintained a Neutral rating, suggesting that much of the optimism is already priced into Tesla’s valuation.
“Our PO revision is driven by a lower cost of equity capital, better Robotaxi progress, and a higher valuation for Optimus to account for the potential entrance into international markets,” the analyst stated.
Interestingly enough, Tesla’s core automotive business, which contributes the lion’s share of the company’s operations today, represents just 12% of total value in BofA’s model.
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