How Tesla's Powerwall carried me through Hurricane Ian

Tesla's Powerwall carried me through the post Hurricane Ian power outage

Back in 2017, I was in a home with solar panels, but no battery backup. Hurricane Irma passed overhead, and I found myself without power for 24-48 hours. We lost all of our food as a result.

When the storm passed, I called up the company that installed my solar panels and found that adding in a battery would be cost-prohibitive, as it would require replacing the solar inverter. As my wife and I started shopping for a new home for our family, I kept this information in mind as I had planned on having solar+battery put in at the new house. I worked on finding a home that would be oriented properly to get the best solar collection capacity, and we bought it in 2018.

Once the home was bought I went through the process of getting quotes for solar + battery arrays and ultimately settled on Tesla.

Tesla was largely chosen because, at the time, the Powerwall battery had the shortest cutover time in the event of an outage. It kicks in right away, while the others took 2-3 seconds to switch over.

By the end of 2018, the array and Powerwall were installed and operational. The array has a max output of 9.425 kW using a SolarEdge SE7600H-US inverter, which has a max output of 7.64 kW, and a single Gen 2 Powerwall 2. During the design, I chose not to have the HVAC and car chargers run off the Powerwall.

As Hurricane Ian approached, Tesla's Storm Watch kicked in on the Powerwall.

The Powerwall started charging to 100% about two days before the hurricane made landfall. I debated on letting the Powerwall’s power get used leading up to landfall, but having been through hurricanes before, I opted to let Storm Watch do its thing. As the hurricane approaches it’s not uncommon for the winds to cause power stability issues. Leading up to the hurricane the power blinked numerous times.

By the afternoon of September, 28th people in the Tampa area were already starting to lose power.

At around 4:15-4:30 pm, as the winds outside were getting stronger, my wife and I decided to start making dinner for the kids. For reasons unknown, we decided to cook some things that involved the stove. At 4:42 pm the power blinked, and the Powerwall took over for about 5 minutes, putting us back on the grid at 4:47 pm. Once back on the grid the Powerwall charged back up to 100%.

At 5:03 pm on September 28th, the power went out again. After making dinner, we turned off the appliances and watched Andor on Disney+.When it was over I looked at the Powerwall’s status and found that we were now down to 91%.

There was a notice that said we had about 8.1 hours of power remaining, I started to cycle through the things in the house that consumed power and began shutting them off, either at the breaker box, or by unplugging them, intending to ensure there was enough power to keep our fridge, and a chest freezer in the garage online.

I was able to get us down to about .3-.4 kW of use before going to bed and hoped that was enough. Things that were turned off were the water heater, the dishwashers, computer gear, TVs, etc. Anything that might have vampire drain in the long run, including the internet gear.

At around 7 pm yesterday, two hours after the power had gone out, Tesla sent me an email with the VIN for my new Model Y.

I couldn't help but chuckle at their timing.

I woke up the next morning, September 29th, at around 6:30 am. I had to connect to the Powerwall directly to check the stats since I had powered down the internet gear and Gen 2 Powerwalls don’t have cellular connectivity any longer due to AT&T's 3G network being shut down earlier this year. I found that the Powerwall was down to 46%.

Amount of energy left

By this time the storm had moved beyond my area, and I went outside to start inspecting for potential property damage and such. Thankfully, we were spared property damage. The most we had was a panel that covers the service box for our internet cables get blown off the side of the house. I found it about 4 feet away and put it back on.

Others in the community I live in were less fortunate. Several smaller trees had been tipped over, some homes had shingles blown off their roof, and in at least one case a tree had fallen on top of a vehicle.

At 8 am I checked to see how many people in my neck of the woods were without power and found that the total increased from 21,2000 to 292,247 as the hurricane moved away.

The day after a hurricane is a tricky one, particularly if the hurricane is a big one because there’s still a lot of cloud cover. By around 8:38 am the Powerwall was at 36% charged and the sun was barely peaking out around the clouds, resulting in a lower power generation rate.

About 30 minutes later, at 9:10 am, enough sun was shining through the clouds for the Powerwall to start charging.

35% would be as low as the Powerwall went during this event.

As the day went on, we used power sparingly, mostly trying to ensure our mobile devices were charged. We used a microwave and a toaster oven to make breakfast, and at around 11 am I got a chuckle at my impact card showing 0% grid usage.

Tesla Solar's Impact card

By lunchtime, the Powerwall showed Storm Watch was over, and the Powerwall was charged to 68%.

So we again used the microwave and toaster oven to make lunch and feed the family.

At around 1 pm the Powerwall started to hit around 80-85% charged, and we started running into an issue with generating power. Every time the Powerwall generated more than 5kW of power, we got an error that read “DC VOLTAGE NOT SAFE! DO NOT DISCONNECT! VDC 445.4”

Followed by another “Error code 18x40 AC Freq too high”

Powerwall charging error

And then it would go to “Waking up…” and start a five-minute timer. Once the five-minute timer was done, the cycle would repeat, the array would generate 5 kW, give an error, and reboot.

I tried to open a support ticket with Tesla, first using the Tesla app. I started a chat session with someone who immediately disconnected the chat session saying “Weather-related issue”, as I was not on the grid.

Irritated, I re-opened the chat session and got a different person who worked with me.

Initially, the individual claimed that the issue was related to the overcast sky, however, that wasn’t the case as the inverter *does* shut down when there’s a lack of sunshine. In this case, it was shutting off every time it hit 5 kW generation. While still on chat support I used a different mobile device to call Tesla's solar number. I received different answers from the chat advisor and the representative on the phone.

Chat support said that there did appear to be an issue and advised me to schedule a service ticket, and ended the chat.

The person on the phone took the time to explain to me what was happening, and ultimately resolved the issue. The Powerwalls are limited to 5 kW of intake. As I only had one Powerwall, once the array generated more than 5 kW of Power, the Powerwall was changing the frequency to tell the array “Whoa, stop, you’re giving me too much power”, which would reboot the array for five minutes, and repeat the cycle.

The solution to this issue is rather amusing.

You have to use more power to use the excess energy that the array is generating.

Armed with this new information I turned back on the dishwasher and the water heater, and started doing dishes, taking a shower, and watching TV. We eventually found a happy medium where we were using enough power to have the Powerwall stop shutting off the array and continue charging.

From 2 pm to 4 pm we greedily used power, but at 4 pm the intake wasn’t as good anymore as the sun was starting its trek to go below the horizon.

After the dishwasher finished, I turned the water heater and dishwasher back off and started going back to “low power” mode as we began making an early dinner, again, using the toaster ovens, and an air fryer.

We took some time to eat our food while watching TV, catching up on Paramount+’s Lower Decks, and Disney+’s She-Hulk, and we started turning things off again.

By 6:22 pm the Powerwall reached 98%. The sun finally went low enough on the horizon for power to stop being generated.

By the end of the day when we getting ready for bed, we still had no power.

By 2:15 am, on September 30th, I awoke to go pee, then sat on the edge of the bed and decided to check the Powerwall’s state of charge. I found it to be at 45% and heard a rumbling outside the bedroom door that turned into a roar.

After initially thinking it was an Amazon plane flying overhead, I got up and checked the thermostat to find that the HVAC had turned back on again. After checking the Tesla app again I found that power had been restored.

Tesla Solar's Impact card

Looking at the Impact card to try and see how long the outage was, I realized that Tesla’s app doesn’t seem to know how to handle an outage that’s longer than a day.

The power went out at 5:03 pm on Wednesday, September 28th, and ultimately returned at 2:17 am on Friday, September 30th. A total of about 32 hours being off-grid.

What would I do differently? Tough to say honestly.

Having to go to the garage to flip breakers to reduce or increase the power load was annoying, putting in a Smart breaker panel would’ve been beneficial, but only so long as we had internet access.

A second Powerwall would’ve been very beneficial as it would have allowed me to not have to increase the power load to ensure the Powerwall kept charging properly, as the power would’ve likely been split between them. If and when Tesla sells Powerwalls without requiring solar with it, this is an option I’ll be investigating for sure, as long as it isn’t cost-prohibitive. I’m uncertain if you can mix and match a Gen 3 Powerwall with a Gen 2 under a SolarEdge inverter.

Not having the HVAC, while unpleasant, wasn't a huge deal. After a hurricane clears out of an area, you’re generally left with a lot of cold air, so we just opened the windows for a bit. Having EV chargers was also a non-issue because we didn’t drive anywhere, and the cars only lost about 2-3% charge, mostly from me opening the Tesla app and accidentally waking up the cars while trying to scroll to the Solar card.

Tesla Activates Sentry Mode on Vehicles at Service Centers and Showrooms to Deter Vandalism

Not a Tesla App

Following the recent spate of misguided violence against Tesla - which has targetted both private owners, as well as Tesla’s showrooms, service centers, and Supercharger sites, owners have been requesting Tesla to improve Sentry Mode and enable the B-pillar cameras. Tesla is now also looking to Sentry Mode to help protect their showrooms and service centers.

Service Mode Sentry Mode

In response to violence being directed at customer vehicles awaiting repairs at collision centers or awaiting delivery at showrooms, Tesla will now enable Sentry Mode on any vehicles that are parked at a Tesla service or Tesla collision location. They will also enable Sentry Mode on vehicles that are being prepared for delivery or are in delivery holding lots.

This change was announced by Elon Musk, following requests from many owners and followers on X for improvements to Sentry Mode following increased Tesla-focused vandalism.

This could put some additional stress on Tesla employees since Sentry Mode uses additional energy when active, meaning that employees will be required to plug in each vehicle about once per week, based on the amount of energy Sentry Mode uses. Tesla is still planning on improving the power efficiency of Sentry Mode in a future update.

While enabling Sentry Mode won’t directly prevent vandalism, such as vehicles honking or playing music when a threat is detected by Sentry Mode, this could help reduce the continued violence by making it easier for Tesla and Tesla owners to get video footage of the vandals.

By doing so, Tesla can ensure that they’re able to press charges against vandals, which will help to dissuade this misguided behavior. Hopefully, just the news that these cars are always recording - even when parked and awaiting repair or delivery - will give these would-be vandals a second thought before committing a crime.

While Elon didn’t mention whether this change would be limited to the United States, we expect that, at the very minimum, it will also include Canada, where 80 cars were recently damaged by vandals overnight at a service center while awaiting repairs. Ideally, this change will be rolled out globally and will help improve security at Tesla’s locations throughout the world.

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The Backlash Against Tesla: Who’s Really Paying the Price?

Chicago Police stand outside a Tesla Showroom.

Not a Tesla App

Elon Musk has always been a bit of a celebrity and not always one that has been well received. With his many different companies - including Tesla, SpaceX, Boring, Neuralink, X, and xAI, he’s spread throughout many high-tech fields and has a massive say in the way technology impacts the lives of many.

Most recently, Elon has taken to the fore of the US government under the Trump Administration and is running the Department of Government Efficiency (DOGE). Here, he’s been tasked with reducing government spending.

These moves, in addition to what looked like an inappropriate hand gesture at a Republican rally last year, have led to him being labeled a Nazi - and those who own his cars or support his companies - as Nazi sympathizers. This is particularly true for Cybertruck owners.

We’re not calling for Elon to step down or stop - that’s beyond the scope of this opinion piece. Instead, we’re hoping that we make a point - harming real people and their property is a step too far, especially when they haven’t done anything other than spend their money or choose their place of employment.

Boycotts and Protests

Few CEOs are as active in politics as Elon is - and that’s made him and his companies the targets of protestors who don't agree with the changes and policies. This has led to boycotts of Tesla, protests outside factories, Supercharger sites, and showrooms.

Interestingly, some protestors at several locations throughout the United States have admitted they are being paid to protest. This isn’t surprising or new -  political activist organizations sometimes bring in paid protestors to pad crowd numbers or guide the protestors toward their goals. While we can’t say whether this is true or not at this time, Elon appears to believe so, as per a post on X on the 8th of March.

Some of the protests have descended into violence, which has likely been escalated by people in a crowd mentality. An example of this is the incident at Tesla’s NYC Meatpacking showroom - where the crowd attempted to break down the doors and enter the showroom, putting the lives of innocent employees and customers at risk.

While protesting is a right, harming others and harming private property is not, regardless of personal beliefs or political opinions. This is what we’d like to emphasize here - harming or threatening Tesla’s employees and their customers isn’t making for a better world - it is hurting real people - members of your community. Some of them may have stood in solidarity with you just mere months ago at the voting booths, but now the simple ownership of a Tesla vehicle is considered extreme.

Vandalism and Who It Impacts

The protests are really just the tip of the iceberg. There have been ongoing and escalating incidents of vandalism - both at Tesla’s showrooms and Superchargers, as well as of private vehicles.

Vandalism is a crime - full stop. Attacking others and their private property with the intent to harm them isn’t an effective means to portray a message - it is political violence. Harming others is never the correct option - and is the worst way to push your message.

Vandalism of a private vehicle doesn't hurt Tesla. That vehicle will be repaired with parts sold by Tesla, paid for by the owner’s insurance. Those insurance costs will be passed down to customers everywhere - whether they’re Tesla-specific or not. Tesla will have made money replacing parts or replacing a vehicle because nearly 70% of Tesla’s customers continue to buy Tesla.

The vandalism isn’t focused on just private vehicles either - much of it has hit Tesla’s showrooms - which have been shot at in the US - and one was even burned down overnight in France. These vandals have also been targeting Tesla’s lots - and damaging cars on their way to customers. Once again, Tesla is insured against all of this - and will only be making replacement vehicles and fixing the damage - just like they did with the arson incident at a Supercharger site - where they replaced the Supercharger in under 48 hours.

Superchargers are public charging infrastructure. Damaging them doesn’t just affect Tesla owners - it impacts all EV drivers. Many Supercharger sites are open to other electric vehicles and serve as a vital charging option, especially in remote areas where charging options may be limited.

Additionally, some Supercharger stations are sometimes partially or fully funded by government grants aimed at expanding EV infrastructure. Acts of vandalism only harm local communities by undermining efforts to build essential public resources.

Sales and Stock

Tesla’s stock and sales have also been hit hard by the recent boycotts and response to Elon’s political activity.

Several analysts are predicting that Tesla’s deliveries in Q1 2025 are expected to be the lowest in the last three years - which will likely be a big hit. On the flipside, Elon is still optimistic about the stock - and has mentioned that the long-term benefits of holding Tesla far outweigh the short-term tensions.

However, Tesla’s stock also swings heavily with the market and is one of the most actively traded stocks by retail investors - both regular stocks and options included. The US markets have been on a relatively downward trend, with the Trump administration telling people to tighten their belts and prepare for a potential recession in the coming months.

These indicators aren’t very clear - and the ramp of the refreshed Model Y will have an impact on sales as Tesla won’t be able to deliver as many vehicles as they normally do.

Musk Owns Only 12% of Tesla

At the end of the day, these protests and all this vandalism only serve one purpose. It hurts hardworking citizens of the countries these events are happening in - whether the United States, Canada, Germany, France, or others.

They don’t impact Elon as much because he owns a small percentage of Tesla. Elon owns 12.8% of Tesla as of February 28, 2025. There are several other large stakeholders who own nearly as much as he does - and hundreds of thousands of retail shareholders. His fortune is so large that even if he lost his entire stake in Tesla today, he’d still be worth over $200 billion.

This amount of money is almost unimaginable. If you were to be given $400,000 every single day since 0 BC - until today - you still wouldn’t be worth as much as Elon Musk. That amount of money is absolutely insane and ridiculous—when you consider how little it affects him and how much real harm it causes to everyday people, it’s clear it’s not the correct approach.

Tesla employs about 130,000 people worldwide. That’s 129,999 people who aren’t Elon Musk that are directly harmed by these actions, all for choosing to work at one of the most innovative tech companies - whose mission is to electrify the world.

Putting all that together - the protests, boycotts, and vandalism aren’t hurting Elon as much as they’re hurting everyone else. They’re hurting regular people. And these people who have been threatened or hurt are never going to look in the same direction as these misguided activists.

Instead, these would-be vandals would be better off redirecting their efforts to reach out to the political leaders in their regions and working on getting better representation - and ensuring that people come to the stands to vote next time there is an election. There is a proper, legal, and moral way to change someone’s mind - with discussion. Threats to damage their property and hurt them are not the way.

Wrapping it all up - harming people and their property is a crime - and it isn’t the way to change people’s minds in a democratic society. It does nothing to harm Elon Musk, and all it hurts are your neighbors and friends.

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