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Tesla is going to light solar on fire

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Here we go again!

AC verses DC, much like Mac verses PC, is a tale as old as time. Battles fought, but the war never won. We use both everyday depending on the use and application. Each current has its place.

Energy is a pretty hot topic these days and solar is poised to become the next great battleground for the Current War. Much like it has always been, most people spend little time thinking about electrical currents. They plug something into something else and it typically just works. EV and solar aficionados on the other hand are keenly aware of the difference.

Here is a general and very basic reminder of the difference between the two currents: Typical solar panels, by their nature, have a direct current (DC) output. Household circuits and electric utility service lines use alternating current (AC). An inverter converts DC from a solar panel into household AC. String inverters handle the current conversion for a group of panels, while micro-inverters convert the current for each individual panel. Some panel manufacturers offer micro-inverters mounted on each panels and designate them as AC panels. In general, these two configurations have similar efficiency but offer unique sets of benefits for how they are used, installed, and maintained. It is important to note that each time current is converted to AC from DC and vice verse, there are losses in efficiency.

Batteries for solar arrays are similar to the panels in the sense that they are also DC by nature. These too need an inverter to get from DC to AC. There are even some that are packaged with built-in charger/inverters and marketed as “AC batteries”.

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It is widely accepted that batteries are integral to the viability of solar as sustainable energy solution. Additionally, the best place for solar arrays are at their point of use, i.e. homes, office buildings, and garages. Battery storage is the key component for bridging the gap of time between energy production and use.

In a residential application the Current War is a matter of how far DC should be carried into a home, when and where it should be converted, and how many times it needs converted.

As a challenge for manufacturers and system designers, every system configuration needs to be unique to the user’s needs and goals. Some solar manufacturers have addressed the different complexities by converting everything to AC as quickly as possible. This makes a system very easy to configure, install, and expand. Each panel has a micro-inverter that essentially ties into a household AC system directly. “AC batteries” compliment this system by also tying into the house AC system directly. The generation and storage can both be easily scaled up or down based on a user’s needs. Working with AC is considered safer than with DC, which add to the reasons for why this method is appealing. The downside comes from converting current twice between the panels and the batteries, resulting in a slight reduction in efficiency.

Ironically, Tesla is expected to make a big push for a very DC-focused system, integrating a bunch of functions and elements. Nikola Tesla might be turning in his grave. Their goal is to limit the current conversion to a single point at the most downstream point possible, immediately before entering the household AC system.

Everything but the motor and onboard charger in a Tesla vehicle uses DC. Supercharging is achieved through DC and bypassing the onboard charger. The Tesla Powerwall is DC. Solar panel output is DC. It’s pretty obvious why Tesla is growing it’s DC ecosystem.

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Energy generation and storage stay on the same side of the inverter. Additionally, Tesla is expected to switch another element to the DC side; the vehicle wall charger. Removing the current conversion bottlenecks will enable the vehicle to charge directly from the DC home battery to the car’s DC battery. I like to think of it as a dam exploding and releasing it’s reservoir of electrons, turning a trickling stream into a raging river!

Speculation is also swirling around the idea of vehicle-to-grid power. This would open a whole new realm of possibilities. It’s hard to say what use Tesla will make of this technology, but it could be possible to use your Tesla vehicle battery to power your home if the grid fails, or even send energy back to grid during demand spikes.

For comparison, lets look at how an AC-focused system would compare to a DC-focused system in everyday use for a house with a Tesla vehicle from the vantage of an electron (keep in mind that these two examples hardly represent the entire spectrum):

Current Conversion Points:

AC:

  • Solar panel generates DC current
  • Unused mid-day Solar DC current converted to household AC at the panel
  • Household AC converted to DC at the house battery as excess storage
  • House battery DC converted back to household AC at night to charge your vehicle
  • Household AC converted to DC in the vehicles onboard charger and sent to vehicle battery

DC:

  • Solar panel generates DC current. Unused mid-day solar DC sent to house battery as excess storage. Then the same current flows from your house battery to your car battery.

Zero conversions in the DC ecosystem compared to four conversions in the AC ecosystem. No loss of efficiency. No bottlenecks. Pretty slick, right?

Yeah, I didn’t address what happens when your DC house battery is low and you draw from the grid and need an AC to DC conversion. Tesla is expected to seamlessly integrate this capability into their system. One conversion is still better than four.

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Both systems will have their share of advocates, and neither of them should be seen as universally ‘wrong’. It comes down to which configuration would best suit the needs and goals of its user. One major comparison between the two systems is the number of components and the likelihood of complete system failure should one single component stop working.

With an AC system, you have a lot of conversion points, but they are fairly independent. If one fails, the rest still work and your system can still function.

With a DC system, you may have one single inverter. If it fails, your entire system fails.

With varying degrees of grid reliability or “prepper” mindfulness, the spectrum of system variations can address every need. The Tesla DC ecosystem will be best used by Tesla vehicle owners. The list of which is about to explode. Not unlike that electron dam.

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I have a passion for all that is clean, green, responsible and logical. Because of this, I am a big Tesla enthusiast and future owner.

Lifestyle

Tesla Semi futuristic sci-fi acceleration sound will never get old

Videos that capture the Semi moving at speed are most notable due to their sheer cool factor.

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Credit: Tesla Owners Silicon Valley/X

The Tesla Semi is not yet in mass production, but the company has accumulated over 7.9 million miles across its test fleet. With Tesla using the Semi for its operations, it is no surprise that sightings of the Class 8 all-electric truck have been abounding. 

These sightings from Tesla enthusiasts vary, but those that capture the the Class 8 all-electric truck moving at speed are most notable, possibly due to their sheer cool factor.

Tesla Semi’s Roar

There is something that just stands out with the Semi, particularly on the road. While the Semi does not have the Cybertruck’s brutalist, angular design, it is still very striking because it’s such a massive machine that moves far too quietly for its size. This is, of course, one of the reasons why the vehicle also becomes extra noteworthy when it fires up its electric motors and accelerates.

Take this video from Tesla Owners Silicon Valley, for example, which shows the all-electric hauler accelerating while pulling what appears to be a full load. In these situations, the Tesla Semi actually becomes audible, but unlike traditional diesel-powered truck, the Class 8 all-electric truck “roars” with its own, unique futuristic, sci-fi sound. In such situations, one could feel the Semi’s raw power, which comes from its three independent motors on its rear axles.

Tesla Semi Ramp

Tesla has been promoting the Semi quite a bit as of late, and recent reports have suggested that the company is putting in a lot of effort to prepare the vehicle for its production in Nevada. Tesla’s Careers website has gone live with over 80 Semi-related job openings recently as well, and a recent report has suggested that Tesla has ramped the Semi’s factory workers in Nevada to over 1,000 employees.

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The company has even shared an update video of the Semi factory’s progress near Giga Nevada, as well as the design of the vehicle’s new logo. The Semi’s updated logo is quite interesting as it features elements from the Tesla Model 3’s first logo, which was unveiled way back in 2016.

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Elon Musk jokes he will join Mr Beast’s “100 Men vs 1 Gorilla” challenge

It’s a good sign, if any, that the overworked Musk is becoming a bit more lighthearted again.

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Credit: Elon Musk/X

Following the first quarter Tesla earnings call, CEO Elon Musk seems to have become a bit more relaxed—relaxed enough to joke about fighting a gorilla with 99 other people, at least.

It’s a good sign, if any, that the overworked Musk is becoming a bit more lighthearted again and not too busy picking fights with politicians on social media.

The Viral 100 Men vs 1 Gorilla Challenge

Over the weekend, a post on social media platform X went viral. The post itself was quite simple, with user @DreamChasnMike stating that he thinks 100 men could beat one gorilla. “Everybody just gotta be dedicated to the sh*t,” the X user joked. The post exploded on the platform, garnering 284 million impressions as of writing.

The silly question also triggered a massive debate about whether 100 men would really stand a chance against a literal gorilla. Some users even lamented that the premise was a sign of male hubris. Nevertheless, the question proved to be a fun topic on X, with some more dedicated users even posting simulated videos of what the “100 Men vs 1 Gorilla Challenge” could look like. 

Mr. Beast and Elon Musk Join In

The premise is quite similar to other viral videos from noted YouTube creator Mr. Beast, so it was no surprise that edited images of Mr. Beast YouTube thumbnails with “100 Men vs a Gorilla” also started spreading on the social media platform. Mr. Beast, who tends to be game to such silly ideas, actually reposted the edited image, joking “Need 100 men to test this, any volunteers?”

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In true Elon Musk fashion, the Tesla and SpaceX CEO noted that he would join the challenge. “Sure, what’s the worst that could happen” Musk wrote in his post on X. Musk’s reply triggered quite a few laughs on X, with some stating that the world probably still needs the CEO.

While silly, Musk’s comment and his recent, more frequent posts about his companies’ products like Starlink and Grok have been received well by his supporters. Over the past months, after all, Musk has been very political and quite confrontational on social media. With Musk soon taking a step back from the Department of Government Efficiency’s (DOGE) daily operations, however, it seems like X will soon get a more tempered and lighthearted Elon Musk once more.

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Possible first glimpse of Tesla “Model 2” affordable car in Fremont Factory

The models that Tesla will release in the coming months will resemble the company’s current lineup.

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Image Credit: @metgodinwilderness7130/YouTube

During the Q1 earnings call, Tesla VP of Vehicle Engineering Lars Moravy set expectations on the design of the affordable models that the company is expected to launch this 2025. As per the Tesla executive, the models that Tesla will release in the coming months will resemble the company’s current lineup.

Drone footage from the Fremont Factory earlier this month might have provided the EV community its first potential glimpse at Tesla’s affordable cars–fondly dubbed by EV fans and analysts as the “Model 2” or even “Model Q”–or at least their components and overall shape.

The Sighting

Tesla watcher and drone operator Met God in Wilderness, who has been posting aerial videos of the Fremont Factory for years now, recently shared some footage from his drone flyovers this month. While the Fremont Factory was abuzz with activity as usual, a couple of rather strange vehicles were quickly spotted by EV watchers on social media.

During the drone operator’s flyover on the 17th, for example, an unfinished vehicle could be seen parked next to what appeared to be fully-built Model S and Model Y units. What was especially interesting was the vehicle’s roof, which seemed to be slightly narrower than the Model Ys around it. Based on the video, at least, the vehicle seemed to be shaped like a crossover as well.

Footage from the 24th of April also proved quite interesting, with the drone operator capturing footage of another cryptic vehicle. Unlike the mysterious, unfinished, crossover-esque car spotted on the 17th, this particular unit seemed to have a more sloping rear, at least based on the shape of its covering.

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What Lars Moravy Said

In Tesla’s Q1 2025 Update Letter, Tesla noted that “plans for new vehicles, including more affordable models, remain on track for start of production in the first half of 2025.” Tesla also noted that the new vehicles will utilize aspects of its next generation and its current platforms. They will also be produced on the same manufacturing lines as its present vehicle lineup, likely the Model Y and Model 3. 

During the earnings call itself, Moravy specifically stated that the new models that would come out in the next months would resemble the company’s current vehicles. They will, however, be affordable. “Models that come out in next months will be built on our lines and will resemble, in form and shape, the cars we currently make. And the key is that they’ll be affordable, and you’ll be able to buy one,” Moravy stated.

Watch the drone operator’s footage from April 17 below.

The drone operator’s footage from April 24 can be viewed below.

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