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As part of my family’s journey to learn more about residential renewable energy, I decided to look into solar panels for our house. We are in the middle of Texas, and who can forget power going out for one week across the entire state in February. We were fortunate, but many of our neighbors had to be without power for a week. The state has done minimal winter weatherization for the coming winter. I fear this winter will be bad, and if not this winter, an upcoming one in short order. Natural gas prices are spiking across the world. According to the Dallas Fed, natural gas and coal make up the majority of power production in Texas. The good news is that wind and solar have made great strides in Texas, but there is much more to go.

A friend of mine mentioned that their average electric bill has increased to $170 a month this year from $140 a month last year. That’s a 20% increase. Retail consumers may have been isolated if they had a fixed rate plan during the freeze. Utilities had to keep buying at ridiculous wholesale prices. I’m sure they will lobby the government for rate increases to make up for all their losses. We can assume electricity prices will go up over the coming years. If the world continues warming, and summers get longer and hotter, that’s another reason our electric bills will go up.

Tesla Solar

Enter rooftop solar and batteries. The first step is having 12 months of electric bills handy. You want to calculate your total kilowatt-hours used in one year. That starts with finding your current electric rate. Ours is 10.9 cents per kWh. Our energy consumption was 14,400 kWh in a year. Our average electric bill was about $131 a month.

Second step: contact many solar providers to get a quote. Tesla makes it easy on its website. Enter your address and Tesla will tell you how much solar and how many Powerwalls you need. Our address was not found, so Tesla asked us to enter some house information.

Tesla Solar info

Below is what Tesla recommends for a Solar Roof. Tesla is quoting $69,500 after the US federal tax credit, 100% estimated energy offset of our annual monthly bill, and 3 days of backup power using a Powerwall. Considering my roof was $35,000 to fix three years ago, and labor and construction costs have increased since then, this seems competitive.

Tesla Solar Roof with Powerwall

Below is Tesla’s quote for solar panels. This is a great price. Tesla would provide a 8.5 kW solar panel system along with 1 Powerwall battery. The cash price is $20,412 after the federal tax credit. The estimated energy offset is 73%, which means 73% of $140 would be offset. Be wary of solar companies providing you a 100% solar offset of your energy bill. Your roof’s potential has to take into account trees, roof shading, weather, pitch of your roof, and which direction the solar panels would be facing. The solar panel preference in the northern hemisphere is south facing or an azimuth of 180 degrees. Azimuth is the angle of your roof position from true north, with roofs facing true north having an azimuth of 0 degrees, and those facing south having 180 degrees. The opposite will be true for those in the southern hemisphere. A pitch of 30 degrees is ideal for solar production. Tesla offers financing of 10 years, with 10% down and 2.99% APR. For the below system, that comes to a price of $240 a month. Readers will note that is almost double our $140 a month in current electric costs.

Tesla Solar using solar panels

Savvy readers may ask, how long is the system guaranteed for? How much will it produce after 25 years? Tesla informs us on its Service and Warranty | Tesla Support page:

Your solar panels are guaranteed by their manufacturer to at least 80% of nameplate power capacity for at least 25 years.

Your entire Tesla solar system is covered by a 10-year comprehensive warranty.

This includes the following aspects of your solar system. For details and exclusions, you can check your specific purchase agreement.

    • Powerwall
    • Solar inverter
    • Roof mounting and leaks

I’m not thrilled the worst case capacity of the system might decrease by 20% over 25 years. That would leave us with a system size equivalent of 6.8 kW after 25 years. The average production size over 25 years is 7.65 kW (8.5 + 6.8, divided by 2). According to my utility, each 1 kW of system capacity facing south will generate 1,533 kWh per year. Taking the average system, we calculated that multiplying by 25 years and multiplying by 1,533 kWh gives us a total of 293,186 kWh produced. Our total cost is $240 * 12 months * 10 years, for a total cost of $28,800. That’s a cost of 9.8 cents per kWh after the credit. This cost would be locked in for as long as we own the panels. As a reminder, that includes one Powerwall battery, which makes this a great deal, especially if the power is to go out. There is a new option that allows you to remove a Powerwall if you don’t want one.

If you are interested in Tesla Solar, feel free to use my referral link.

Use my referral link to purchase Solar Roof or Solar Panels and get up to $500 award upon system activation: https://ts.la/vijay59877

SunPower

We recently mentioned SunPower’s move to help historically marginalized communities here. I’m supportive of the move. SunPower is listed on the Nasdaq as a public company. This week, the company decided to focus purely on residential systems and sell off its commercial and industrial solar division. CNBC has more info.

I contacted the company on its website and set up an appointment. I met with Salvador V. twice over the course of a week. Below is some key information from the proposal we reviewed.

Picture of our roof with potential solar locations

Above: A picture of our roof. We upsized our system by adding four more panels from the original proposal (dark orange).

SunPower system size and total production

SunPower would install 22 panels, with a total solar system size of 7.194 kW. Lifetime production is estimated at 264,337 kWh. To repeat, we had calculated my monthly bill to be $131. Based on that, the system would offset 78% of my electricity consumption.

SunPower system cost

The total out of pocket cost was noted as $24,287 after the US federal tax credit. (Note: This does not include a Powerwall battery or any kind of energy storage battery.) The monthly cost of the system would be $109 a month over 25 years. That is how long SunPower will warranty the system, 25 years, which is phenomenal. Salvador noted a Powerwall from SunPower is an extra $16,000. Tesla Solar has a Powerwall listed for $10,500. The interest rate they offered me was 1.99%. Over 25 years, the total cost is $32,700 ($109 * 12 * 25). If we divide that by a total production of 264,337, that gives us a total cost of 12.4 cents a kWh.

SunPower’s warranty specifies the DC power will decline by no more than 2% a year for the first year, and the following years will not decline by more than 0.25% a year for the next 24 years. That means the system will be guaranteed to generate 92% of its capacity after 25 years. SunPower will repair, replace, or refund the original purchase price over 25 years for any valid claim. In their own words:

“… will be at least 92% of the Minimum Peak Power rating (the “Guaranteed Peak Power” rating) and the AC power of the system will be at least 90% of the Peak System Power for the full 25-year warranty period.”

That is an impressive warranty. When you install a solar system, the parts can be from different distributors and labor from another subcontractor. Who do you go to if you have a warranty claim? What happens if your part is no longer available? SunPower makes it easy. The company sells all of its equipment to one state distributor, and that distributor is captive to SunPower. In our case, Freedom Energy is SunPower’s captive distributor in Texas. If we had a warranty claim, I would contact my rep, Salvador. Freedom Energy would be responsible for the labor, fixing the system, and any parts needed under a claim. If needed, we can add a battery or more panels in the future. If you are in Texas and have interest in SunPower, you can contact my rep Salvador at salvador@freedomsolarpower.com. Mention my name, Vijay Govindan, to him and you’ll save money on the system, I’ll make money, and we’ll being doing good together.

Summary

Here’s where we stand:

After all was said and done, we went with SunPower for a few reasons. Reason 1: the lower monthly cost. Reason 2: no down payment. We can invest the down payment and $111 monthly savings compared to Tesla Solar in outside investments. Reason 3: the higher production capacity of the panels over 25 years. This advantage is offset by the larger Tesla Solar system size. Reason 4: time. SunPower estimates it can get the licensing, permitting, HOA approvals, and installation done within 2 months. I do not know how long it would take for Tesla Solar to do the same. I might not know until I finalize my order. Reason 5: the peace of mind of the long warranty period and ease of getting claims resolved. Reasons against the SunPower system are the expensive cost of the battery, higher system cost, smaller system size, and no battery being included in the proposal. If you can pay cash for your system, it’s a no-brainer — go with Tesla Solar and invest your savings. The SunPower app is not as good as Tesla’s, but with the changes at the top of the article, I am sure they will work to improve it soon.

The bottom line is, whoever you go with — Tesla Solar, SunPower, someone else, or doing it yourself — it’s a good idea to explore renewable energy production for your home. Give it back to the governor, legislature, and utilities on escalating energy costs, brownouts, blackouts, and poor maintenance of the grid.

I’ll leave you with the final slide in the SunPower proposal. Outside of the financial savings, the savings to the environment are significant. Below is the estimated impact form switching to the solar panels, every year. Stick it to the fossil fuel companies, their lobbyists, and favored donation recipients known as politicians. Take control of your energy production. At scale, this would dent natural gas and coal plants until they become unprofitable.

SunPower environmental impact of solar panels

Final note on net metering

What happens in those months when we produce more than we consume, such as spring and fall? According to our utility, we would get no credit for those kWh, and they would go back to the grid for free. The utility will give us credit for what we produce at our retail rate, and charge us only for the net amount of electricity consumed. The catch is the full retail credit is only given if the solar panels did not produce more energy than our house consumed at the end of the billing cycle. That’s Texas for you.

The ultimate goal for our family is creating apartment complexes that are sustainable, fashionable, and low cost. Solar and renewable energy will play a big role in bringing that vision to life. It’s one reason why we want to learn more about solar panels.

Note: I own shares in Tesla, I own no shares in SunPower. You know by now this is not investment advice. Do your own diligence, read from a variety of sources on what you need to move to solar, and do what’s best for you.

Thanks for reading and warmest regards.

 

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California hits back as CARB takes legal action against truck brands

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California hits back as CARB takes legal action against truck brands

Following a lawsuit brought against the California Air Resources Board (CARB) by major heavy truck manufacturers over California’s emissions requirements, CARB has struck back with fresh lawsuit of its own alleging that the manufacturers violated the terms of the 2023 Clean Truck Partnership agreement to sell cleaner vehicles.

Daimler Truck North America, International Motors, Paccar and Volvo Group North America sued the California Air Resources Board in federal court this past August, seeking to invalidate the Clean Truck Partnership emissions reduction deal they signed with the state in 2023 to move away from traditional trucks and toward zero-emission vehicles (ZEVs). The main point of the lawsuit was that, because the incoming Trump Administration rolled back Environmental Protection Agency (EPA) policies that had previously given individual states the right to set their own environmental and emissions laws, the truck makers shouldn’t have to honor the deals signed with individual states.

“Plaintiffs are caught in the crossfire: California demands that OEMs follow preempted laws; the United States maintains such laws are illegal and orders OEMs to disregard them,” the lawsuit reads. “Accordingly, Plaintiff OEMs file this lawsuit to clarify their legal obligations under federal and state law and to enjoin California from enforcing standards preempted by federal law.”

After several weeks of waiting for a response, we finally have one: CARB is suing the OEMs right back, claiming that the initial suit proves the signing manufacturers, “(have) unambiguously stated that they do not intend to comply.”

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They want to sell Americans more diesel


Peterbilt Model 589; via Peterbilt.

In its lawsuit, CARB argues that monetary damages alone would not make the people of the State of California whole as far as damages are concerned, citing that the stated goal of the 2023 Clean Truck Partnership was, “to achieve emissions reductions that cannot be measured strictly in financial terms,” according to ACT-News.

The agency is asking the court to compel the truck companies to perform on their 2023 obligations or, failing that, to allow CARB to rescind the contract and recover its costs. A hearing on the truck makers’ request for a preliminary injunction was held Friday, with another court date set for November 21, when CARB will seek to dismiss the case brought forth by the truck brands. The outcome of these cases could shape how state and federal government agencies cooperation on emissions rules in the future.

You can read the full 22-page lawsuit, below, then let us know what you think of CARB’s response (and their chances of succeeding) in the comments.

SOURCES: CARB; via ACT-News, Trucking Dive.


If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them. 

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

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New national law will turn large parking lots into solar power farms

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New national law will turn large parking lots into solar power farms

Starting this month, parking lots in South Korea with more than 80 spaces will be required to install solar canopies and carports. But, unlike similar laws that have been proposed in the US, this new law doesn’t just apply to new construction – existing lots will have to comply as well!

South Korea’s Ministry of Trade, Industry and Energy announced in August that it has prepared an amendment to the Enforcement Decree of the Act on the Promotion of the Development, Use, and Diffusion of New and Renewable Energy to the effect that all publicly- and privately-owned parking lots in the Asian country with room for more than 80 vehicles will be compelled to add solar panels to their lots in a move designed to proactively expand renewable energy and create more solar and construction jobs.

In addition to creating jobs and working to stabilize the local grid with more renewable energy, the proposed solar canopies will offer a number of practical, day-to-day benefits for Korean drivers, as well.

The shaded structures will protect vehicles from heavy rain, snow, and the blistering summer sun — keeping interiors cooler, extending the life of plastics and upholstery, and even helping to preserve battery range in EVs and PHEVs by reducing their AC loads (and, of course, provide charging while the cars are parked).

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To their credit, Ministry officials absolutely get it. “Through this mandatory installation,” one unnamed official told Asia Business Daily, “we expect to expand the distribution of eco-friendly renewable energy generation facilities while providing tangible benefits to the public. By utilizing idle land such as parking lots, we can maximize land use efficiency. In addition, installing canopy-type solar panels can provide shade underneath, offering noticeable comfort to people using parking lots during hot weather.”

The new rule was approved in late September, and is expected to go into effect later this month, with new installation projects set to begin immediately.

It could work here


Solar carport; by Standard Solar.

South Korea is proving that an idea like is practical. Here in the US, we’re proving that out, too – the Northwest Fire District in Arizona partnered with Standard Solar to build a conceptually similar, 657 kW solar carport system across 12 parking lots (shown, above) that delivers more than 1.23 million kWh of clean, emissions-free power annually and offsets the equivalent of 185,000 vehicles’ worth of harmful carbon emissions.

That’s just Arizona. In New York, a new initiative to help expand solar into parking lots has more than doubled commercially zoned land where EV charging stations can be sited, “freeing up” an additional 400 million square feet of space throughout the city. 

Sun-rich states like Texas, New Mexico, and Florida could also benefit, and even if we’re “just” adding fresh energy sources to municipal parking, dealer lots, and public schools, we could do a lot to reduce the cost of energy generation for the entire community. And, for what it’s worth, that seems to be right in line with the big reasons why people are choosing to add solar to their homes today.

What do you guys think – would something like this work in the US, or are we too far gone down the sophomoric, pseudo-libertarian rabbit hole to ever dig our way out? Let us know your take in the comments.

SOURCE | IMAGES: Asia Business Daily, via LinkedIn; Standard Solar.


If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them. 

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

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NHTSA is investigating Waymo robotaxis for passing stopped school bus

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NHTSA is investigating Waymo robotaxis for passing stopped school bus

Autonomous taxi company Waymo faced scrutiny last month when a car was caught on video illegally passing a stopped school bus that was letting children off in Atlanta. Now, the National Highway Traffic Safety Administration (NHTSA) is looking into it.

Georgia State Representative Clint Crowe seemed stunned after being presented with video of a Waymo driverless car illegally passing a stopped school bus on Briarcliff Road in Atlanta last month. “I’m a big fan of new technologies and emerging technologies and I think that driverless cars are going to become more prevalent,” he told local NBC news affiliate WBIR. “But we got [sic] to think about how they’re going to comply with the law.”

WBIR | Waymo illegally passes school bus


Crowe co-sponsored Addy’s Law in 2024. The legislation was named after 8-year-old Addy Pierce, who was killed in Henry County after being struck while crossing the street to get to her bus. The law stiffened penalties for illegally passing a stopped school bus, carrying penalties of up to $1,000 in fines and even jail time.

According to Crowe, those rules still apply to autonomous vehicles. “The majority of our traffic laws, the penalty is usually a fine and or driver’s license suspension. These cars don’t have a driver, so they don’t have a driver’s license and so we’re really going to have to rethink who’s the responsible party, who’s going to be responsible for being in control of that vehicle and who’s going to be the operator of that vehicle,” he said.

Crowe believes manufacturers should face stronger consequences when their vehicles break the law, saying the $1,000 fine doesn’t go far enough.

WBIR NEWS

Now, thanks to pressure from social media and politicians like Crowe and Geoirgia State Senator Rick Williams, who helped co-author Addy’s Law, it seems like NHTSA is getting involved.

Prompted by media reports, the US Department of Transportation issued an investigation regarding Waymo’s AV, which states that, “the AV initially stopped, but then drove around the front of the bus by briefly turning right to avoid running into the bus’s right front end, then turning left to pass in front of the bus, and then turning further left and driving down the roadway past the entire left side of the bus. During this maneuver, the Waymo AV passed the bus’s extended crossing control arm near disembarking students (on the bus’s right side) and passed the extended stop arm on the bus’s left side.”

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While it remains to be seen how much work NHTSA is actually doing amid the ongoing shutdown of the Federal government, it’s worth noting that, regardless of the outcome, Senator Williams said he plans to introduce new legislation that would hold driverless car companies accountable with higher fines if their vehicles violate traffic laws. If that passes in Georgia, it could set the stage for politicians across the US and even abroad to use similar fins to halt the spread of autonomous taxis in their states.

Driverless cars should be stopped until it can be figured out,” said Williams. “We should not have this on the road. It’s too dangerous for our children.”

You can read NHTSA summary, below.

We’re typically pretty tech- and autonomous-forward here, but as a parent I would absolutely lose my s*** if a Waymo or Robotaxi or whatever else ran over my kid. but I’ve also seen plenty of human drivers blow past a school bus with a knee on the steering wheel and both eyes glued firmly to their phones. Let us know who you’d be more ready to trust with your kids’ lives in the comments.

SOURCES: WBIR, NHTSA, via School Transportation News.


If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them. 

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

FTC: We use income earning auto affiliate links. More.

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