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.

News
Hyundai dives into the robotaxi business with TX-based startup
Hyundai IONIQ 5 robotaxis are launching in Texas this year — powered by autonomous driving tech from startup Avride.

Hyundai Motor Co. is diving into the robotaxi business with Texas-based startup Avride. Hyundai and Avride’s autonomous ride-hailing service will roll out in Texas later this year.
The South Korean automaker and its new partner plan to develop driverless robotaxis based on the all-electric Hyundai IONIQ 5 SUV. Last year, Hyundai’s IONIQ 5 passed a US driver’s license test. Hyundai’s robotaxi is a Level 4 autonomous vehicle certified by Federal Motor Vehicle Safety Standards (FMVSS).
The legacy automaker will assemble IONIQ 5 robotaxi vehicles at its new Hyundai Motor Group Metaplant America (HMGMA) in Georgia. After assembly, the Hyundai robotaxis will be integrated with Avride’s autonomous driving technology.
“This new agreement with Hyundai Motor will help us scale our operations significantly, with plans to expand our fleet to up to 100 autonomous IONIQ 5’s in 2025, leveraging Hyundai Motor’s IONIQ 5 and our autonomous driving technology,” Dmitry Polishchuk, CEO of Avride, said in a press release.
Hyundai’s IONIQ 5 robotaxis will roll out later this year in Dallas as part of Avride’s robotaxi service. Customers may catch a ride in one of the driverless Hyundai IONIQ 5 vehicles through the Uber app.
Texans will see quite a few autonomous robotaxis on the road this year. While Hyundai’s robotaxis hit the road in Dallas, Tesla will launch “unsupervised full self-driving as a paid service in Austin in June,” according to Elon Musk’s statement in the last TSLA earnings call.
Energy
Tesla lands in Texas for latest Megapack production facility

Tesla has chosen the location of its latest manufacturing project, a facility that will churn out the Megapack, a large-scale energy storage system for solar energy projects. It has chosen Waller County, Texas, as the location of the new plant, according to a Commissioners Court meeting that occurred on Wednesday, March 5.
Around midday, members of the Waller County Commissioners Court approved a tax abatement agreement that will bring Tesla to its area, along with an estimated 1,500 jobs. The plant will be located at the Empire West Industrial Park in the Brookshire part of town.
Brookshire also plans to consider a tax abatement for Tesla at its meeting next Thursday.
The project will see a one million square-foot building make way for Tesla to build Megapack battery storage units, according to Covering Katy News, which first reported on the company’s intention to build a plant for its energy product.
CEO Elon Musk confirmed on the company’s Q4 2024 Earnings Call in late January that it had officially started building its third Megapack plant, but did not disclose any location:
“So, we have our second factory, which is in Shanghai, that’s starting operation, and we’re building a third factory. So, we’re trying to ramp output of the stationary battery storage as quickly as possible.”
Tesla plans third Megafactory after breaking energy records in 2024
The Megapack has been a high-demand item as more energy storage projects have started developing. Across the globe, regions are looking for ways to avert the loss of power in the event of a natural disaster or simple power outage.
This is where Megapack comes in, as it stores energy and keeps the lights on when the main grid is unable to provide electricity.
Vince Yokom of the Waller County Economic Development Partnership, commented on Tesla’s planned Megapack facility:
“I want to thank Tesla for investing in Waller County and Brookshire. This will be a state-of-the-art manufacturing facility for their Megapack product. It is a powerful battery unit that provides energy storage and support to help stabilize the grid and prevent outages.”
Tesla has had a lease on the building where it will manufacture the Megapacks since October 2021. However, it was occupied by a third-party logistics company that handled the company’s car parts.
News
Judge rejects Elon Musk’s OpenAI injunction request, but offers fast trial
The judge, however, opened the door for an expedited trial on Musk’s core claims against the artificial intelligence startup.

A federal judge has rejected Elon Musk’s push to block OpenAI’s for-profit conversion. The judge, however, opened the door for an expedited trial on Musk’s core claims against the artificial intelligence startup.
Injunction Denied, but Core Case Advances
U.S. District Judge Yvonne Gonzalez Rogers ruled on Tuesday that “Musk has not demonstrated likelihood of success on the merits” in his request for a preliminary injunction.” The judge flagged Musk’s recent $97.4 billion bid to buy OpenAI’s nonprofit as undermining his “claim of irreparable harm.”
Judge Gonzales Rogers did offer to hold a trial in her California courtroom as early as this fall “given the public interest at stake and potential for harm if a conversion contrary to law occurred,” as noted in a report from the Associated Press. This effectively keeps Musk’s core allegations alive, including breach of contract tied to OpenAI’s nonprofit roots.
Previous comments
Musk, who invested $45 million in OpenAI from its founding until 2018, alleged that the firm violated its founding mission when it shifted its efforts into becoming a for-profit company.
Judge Gonzales Rogers, for her part, had previously questioned why the Tesla and SpaceX CEO invested tens of millions in OpenAI without a written contract. “That is just a lot of money” to invest “on a handshake,” the judge previously noted.
What They’re Saying
OpenAI has welcomed the court’s decision. The artificial intelligence startup stated that, “This has always been about competition. Elon’s own emails show that he wanted to merge a for-profit OpenAI into Tesla. That would have been great for his personal benefit, but not for our mission or U.S. interests.”
Elon Musk lawyer Marc Toberoff also noted that he is pleased about the judge’s decision to offer an expedited trial on the lawsuit’s core claims. “We look forward to a jury confirming that Altman accepted Musk’s charitable contributions, knowing full well they had to be used for the public’s benefit rather than his own enrichment,” the lawyer stated.
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