EV Home Charging: I Did the Math—and Saved Hundreds of Dollars - Kanebridge News
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EV Home Charging: I Did the Math—and Saved Hundreds of Dollars

High-voltage outlets, smart chargers, money-saving utility programs: what to know about charging EVs at home

By JOANNA STERN
Thu, Mar 28, 2024 12:05pmGrey Clock 4 min

Things I miss about my local gas station:

That’s it. That’s the list. OK, fine, I did enjoy the communal squeegees.

This week marks six months since the grand opening of my home electric-vehicle charging station. Congrats to the whole team! (Me and my electrician.) Located between my garage door and recycling bin, it’s hard to beat for the convenience. And also the price.

If you’ve followed my ad-EV-ntures, you’re aware of my feelings about the hell that is public EV charging , at least before Tesla started sharing its Superchargers with its rivals. Truth is, I rarely go to those public spots. The vast majority of EV owners—83%—regularly charge at home, according to data-analytics company J.D. Power.

I already discovered many EV virtues , but I didn’t quite grasp the cost savings until I tallied up half a year of home-charging data. In that time, I spent roughly $125 on electricity to drive just under 2,500 miles. In my old car, that would have cost me more than twice as much—assuming gas held steady at around $3.25 a gallon . And I was charging through the winter, when electricity doesn’t stretch as far in an EV.

Rebates and programs from my state and utility company sweeten the deal. So I will be able to take advantage of discounted electricity, and offset the cost of my charger. The same may be available to you.

But first, there are technical things to figure out. A 240-volt plug? Kilowatt-hours? Peak and off-peak charging? While other people are in their garages founding world-altering tech companies or hit rock bands, I’m in there finding answers to your home-charging questions.

How to get set up

Sure, you can plug your car into a regular 120-volt wall outlet. (Some cars come with a cable.) And sure, you can also simultaneously watch all of Netflix while it charges. It would take more than two days to fill my Ford Mustang Mach-E’s 290-mile battery via standard plug, known as Level 1 charging.

That’s why you want Level 2, which can charge you up overnight. It requires two components:

• A 240-volt electric outlet. Good news: You might already have one of these higher-powered outlets in your house. Some laundry dryers and other appliances require them. Bad news: It might not be in your garage—assuming you even have a garage. I realise not everybody does.

Since my suburban New Jersey home has an attached garage, the install process wasn’t horrible—or at least that’s what my electrician said. He ran a wire from the breaker panel in the basement to the garage and installed a new box with a NEMA 14-50 outlet. People with older homes or detached garages might face trickier wiring issues—more of a “Finding NEMA” adventure. (I apologise to everyone for that joke.)

My installation cost about $1,000 but the pricing can vary widely.

• A smart charger. Choosing a wall charger for your car is not like choosing one for your phone. These mini computers help you control when to start and stop charging, calculate pricing and more.

“This is not something where you just go to Amazon and sort for lowest to highest price,” said Tom Moloughney, the biggest EV-charging nerd I know. On his website and “State of Charge” YouTube channel , Moloughney has reviewed over 100 home chargers. In addition to technical measurements, he does things like freezing the cords, to see if they can withstand wintry conditions.

“Imagine you are fighting with this frozen garden hose every time you want to charge,” he said.

One of his top picks, the ChargePoint Home Flex , was the same one my dad had bought. So I shelled out about $550 for it.

Just remember, if you want to make use of a charger’s advanced features—remote controls, charging updates, etc.—you’ll also need strong Wi-Fi in your garage.

How to save money

I hear all you money-minded WSJ readers: That’s at least $1,600 after getting the car. How the heck is this saving money? I assumed I’d recoup the charging-equipment investment over time, but then I found ways to get cash back even sooner.

My utility provider, PSE&G, says it will cover up to $1,500 on eligible home-charger installation costs . I just need to submit some paperwork for the rebate. In addition, New Jersey offers a $250 rebate on eligible charger purchases. (Phew! My ChargePoint is on the list.) If all is approved, I’d get back around $1,250. Fingers crossed!

I didn’t know about these programs until I started reporting on this. Nearly half of home-charging EV owners say they, too, are unaware of the programs offered by their electric utility, according to a 2024 study released by J.D. Power . So yes, it’s good to check with your provider. Kelley Blue Book also offers a handy state-by-state breakdown.

How to charge

Now I just plug in, right? Kinda. Even if you have a Level 2 charger, factors affect how many hours a fill-up will take, from the amperage in the wall to the current charge of your battery. Take Lionel Richie’s advice and plan on charging all night long .

It can also save you money to charge during off-peak hours.

Electricity costs are measured in kilowatt-hours. On my basic residential plan, PSE&G charges 18 cents per kWh—just 2 cents above the 2023 national average . My Mustang Mach-E’s 290-mile extended-range battery holds 91 kilowatt-hours.

Translation: A “full tank” costs $16. For most gas-powered cars, that wouldn’t cover half a tank.

And If I’m approved for PSE&G’s residential smart-charging plan, my off-peak charging (10 p.m. to 6 a.m. and weekends) will be discounted by up to 10.5 cents/kWh that I’ll get as a credit the following month. I can set specific charging times in the ChargePoint app.

Electricity prices fluctuate state to state but every expert I spoke to said no matter where in the country you live, home charging should cost less than half what gas would for the same mileage. (See chart above for a cost comparison of electric versus gas.) And as I’ve previously explained , fast charging at public stations will cost much more.

One big question: Am I actually doing anything for the environment if I’m just taxing the grid? Eventually, I’d like to offset the grid dependence—and cost—by powering my fancy little station with solar panels. Then, I’ll just be missing the squeegee.



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No trip to Singapore is complete without a meal (or 12) at its hawker centers, where stalls sell multicultural dishes from generations-old recipes. But rising costs and demographic change are threatening the beloved tradition.

By SEBASTIAN MODAK
Fri, Oct 18, 2024 6 min

In Singapore, it’s not unusual for total strangers to ask, “Have you eaten yet?” A greeting akin to “Good morning,” it invariably leads to follow-up questions. What did you eat? Where did you eat it? Was it good? Greeters reserve the right to judge your responses and offer advice, solicited or otherwise, on where you should eat next.

Locals will often joke that gastronomic opinions can make (and break) relationships and that eating is a national pastime. And why wouldn’t it be? In a nexus of colliding cultures—a place where Malays, Indians, Chinese and Europeans have brushed shoulders and shared meals for centuries—the mix of flavours coming out of kitchens in this country is enough to make you believe in world peace.

While Michelin stars spangle Singapore’s restaurant scene , to truly understand the city’s relationship with food, you have to venture to the hawker centres. A core aspect of daily life, hawker centres sprang up in numbers during the 1970s, built by authorities looking to sanitise and formalise the city’s street-food scene. Today, 121 government-run hawker centres feature food stalls that specialise in dishes from the country’s various ethnic groups. In one of the world’s most expensive cities, hawker dishes are shockingly cheap: A full meal can cost as little as $3.

Over the course of many visits to Singapore, I’ve fallen in love with these places—and with the scavenger hunts to find meals I’ll never forget: delicate bowls of laksa noodle soup, where brisk lashes of heat interrupt addictive swirls of umami; impossibly flaky roti prata dipped in curry; the beautiful simplicity of an immaculately roasted duck leg. In a futuristic and at times sterile city, hawker centres throw back to the past and offer a rare glimpse of something human in scale. To an outsider like me, sitting at a table amid the din of the lunch-hour rush can feel like glimpsing the city’s soul through all the concrete and glitz.

So I’ve been alarmed in recent years to hear about the supposed demise of hawker centres. Would-be hawkers have to bid for stalls from the government, and rents are climbing . An upwardly mobile generation doesn’t want to take over from their parents. On a recent trip to Singapore, I enlisted my brother, who lives there, and as we ate our way across the city, we searched for signs of life—and hopefully a peek into what the future holds.

At Amoy Street Food Centre, near the central business district, 32-year-old Kai Jin Thng has done the math. To turn a profit at his stall, Jin’s Noodle , he says, he has to churn out at least 150 $4 bowls of kolo mee , a Malaysian dish featuring savoury pork over a bed of springy noodles, in 120 minutes of lunch service. With his sister as sous-chef, he slings the bowls with frenetic focus.

Thng dropped out of school as a teenager to work in his father’s stall selling wonton mee , a staple noodle dish, and is quick to say no when I ask if he wants his daughter to take over the stall one day.

“The tradition is fading and I believe that in the next 10 or 15 years, it’s only going to get worse,” Thng said. “The new generation prefers to put on their tie and their white collar—nobody really wants to get their hands dirty.”

In 2020, the National Environment Agency , which oversees hawker centres, put the median age of hawkers at 60. When I did encounter younger people like Thng in the trade, I found they persevered out of stubbornness, a desire to innovate on a deep-seated tradition—or some combination of both.

Later that afternoon, looking for a momentary reprieve from Singapore’s crushing humidity, we ducked into Market Street Hawker Centre and bought juice made from fresh calamansi, a small citrus fruit.

Jamilah Beevi, 29, was working the shop with her father, who, at 64, has been a hawker since he was 12. “I originally stepped in out of filial duty,” she said. “But I find it to be really fulfilling work…I see it as a generational shop, so I don’t want to let that die.” When I asked her father when he’d retire, he confidently said he’d hang up his apron next year. “He’s been saying that for many years,” Beevi said, laughing.

More than one Singaporean told me that to truly appreciate what’s at stake in the hawker tradition’s threatened collapse, I’d need to leave the neighbourhoods where most tourists spend their time, and venture to the Heartland, the residential communities outside the central business district. There, hawker centres, often combined with markets, are strategically located near dense housing developments, where they cater to the 77% of Singaporeans who live in government-subsidised apartments.

We ate laksa from a stall at Ghim Moh Market and Food Centre, where families enjoyed their Sunday. At Redhill Food Centre, a similar chorus of chattering voices and clattering cutlery filled the space, as diners lined up for prawn noodles and chicken rice. Near our table, a couple hungrily unwrapped a package of durian, a coveted fruit banned from public transportation and some hotels for its strong aroma. It all seemed like business as usual.

Then we went to Blackgoat . Tucked in a corner of the Jalan Batu housing development, Blackgoat doesn’t look like an average hawker operation. An unusually large staff of six swirled around a stall where Fikri Amin Bin Rohaimi, 24, presided over a fiery grill and a seriously ambitious menu. A veteran of the three-Michelin-star Zén , Rohaimi started selling burgers from his apartment kitchen in 2019, before opening a hawker stall last year. We ordered everything on the menu and enjoyed a feast that would astound had it come out of a fully equipped restaurant kitchen; that it was all made in a 130-square-foot space seemed miraculous.

Mussels swam in a mushroom broth, spiked with Thai basil and chives. Huge, tender tiger prawns were grilled to perfection and smothered in toasted garlic and olive oil. Lamb was coated in a whisper of Sichuan peppercorns; Wagyu beef, in a homemade makrut-lime sauce. Then Ethel Yam, Blackgoat’s pastry chef prepared a date pudding with a mushroom semifreddo and a panna cotta drizzled in chamomile syrup. A group of elderly residents from the nearby towers watched, while sipping tiny glasses of Tiger beer.

Since opening his stall, Rohaimi told me, he’s seen his food referred to as “restaurant-level hawker food,” a categorisation he rejects, feeling it discounts what’s possible at a hawker centre. “If you eat hawker food, you know that it can often be much better than anything at a restaurant.”

He wants to open a restaurant eventually—or, leveraging his in-progress biomedical engineering degree, a food lab. But he sees the modern hawker centre not just as a steppingstone, but a place to experiment. “Because you only have to manage so many things, unlike at a restaurant, a hawker stall right now gives us a kind of limitlessness to try new things,” he said.

Using high-grade Australian beef and employing a whole staff, Rohaimi must charge more than typical hawker stalls, though his food, around $12 per 100 grams of steak, still costs far less than high-end restaurant fare. He’s found that people will pay for quality, he says, even if he first has to convince them to try the food.

At Yishun Park Hawker Centre (now temporarily closed for renovations), Nurl Asyraffie, 33, has encountered a similar dynamic since he started Kerabu by Arang , a stall specialising in “modern Malay food.” The day we came, he was selling ayam percik , a grilled chicken leg smothered in a bewitching turmeric-based marinade. As we ate, a hawker from another stall came over to inquire how much we’d paid. When we said around $10 a plate, she looked skeptical: “At least it’s a lot of food.”

Asyraffie, who opened the stall after a spell in private dining and at big-name restaurants in the region, says he’s used to dubious reactions. “I think the way you get people’s trust is you need to deliver,” he said. “Singapore is a melting pot; we’re used to trying new things, and we will pay for food we think is worth it.” He says a lot of the same older “uncles” who gawked at his prices, are now regulars. “New hawkers like me can fill a gap in the market, slightly higher than your chicken rice, but lower than a restaurant.”

But economics is only half the battle for a new generation of hawkers, says Seng Wun Song, a 64-year-old, semiretired economist who delves into the inner workings of Singapore’s food-and-beverage industry as a hobby. He thinks locals and tourists who come to hawker centers to look for “authentic” Singaporean food need to rethink what that amorphous catchall word really means. What people consider “heritage food,” he explains, is a mix of Malay, Chinese, Indian and European dishes that emerged from the country’s founding. “But Singapore is a trading hub where people come and go, and heritage moves and changes. Hawker food isn’t dying; it’s evolving so that it doesn’t die.”