Live data from Hacker News

7.1 Earthquake in Japan

data.jma.go.jp

201–210 of 253 posts

Re: 7.1 Earthquake in Japan

#201
post #90

Earlier quoted context omitted.

A hundred years from now people are going to be absolutely flabbergasted how we just piped gas everywhere all the time. Electricity allows for so many more automatic safeguards.

> Electricity allows for so many more automatic safeguards. Since the mid-2000s there has actually been a push by Japanese utility companies for adoption of what they call "all-electric" オール電化. Adoption has been reasonably good with new-builds because they can also have solar panels. But adoption in older properties has been slower. First in general, electricity in Japan has tended to be more expensive than gas. Seco…

I’ve worked in appliance repair and have worked on induction cook tops.

I wouldn’t recommend buying one. The fancier models have a stupendous number of circuit boards in them, and obviously a lot of power electronics, as well as cooling fans. Probably buy the cheapest model with the least number of features that you can bear the sight of, style matters in a kitchen, if you have to buy one at all.

I’ve simplified by cooking to an electric pressure cooker, which also functions as a slow cooker and pot for frying, an air fried, and a microwave. No kettle, no pots or pans, no cooktop, no oven. An oven would be useful I suppose if I were cooking for more people. The pressure cooker plus air frier is a faster and more convenient substitute for roasting meat.

As they become more common and age, I predict induction cooktops will have a much higher failure rate than dumb rheostat controlled resistive element cooktops. Everything has a much higher failure rate than dumb resistive element cooktops. And they are much easier to repair with very few parts: a resistive element and a rheostat.

I’ve don’t quite a good many replacements of fully functional dumb resistive cooktops and ovens with the new version of the same model, simply because the 70 to 80 year old residence wanted something newer and shinier, even though the new model is almost identical to the 20 to 30 year old model they’re replacing.

Improper installation of induction cooktops in older kitchens with out the necessary cabinet work to correctly ventilate them is a big problem too.

Anyways, gas is a great source of energy especially for commercial and industrial cooking and heating, where electric is simply impractical due to the immense amount of power required.

At home, sure. The typical setup requires less than 10kW. Trivial.

In a food court or restaurant strip currently serviced by gas, the electricity requirement could easily exceed 1 megawatt, which means major infrastructure upgrades, and you’ll never get the rapid heat control like gas provides, which is essential in reasonable service times, along with the fact that gas cookers are infinitely simpler and have very low failure rates compared to anything electric that is put through repeated thermo cycling 16 or 24hrs a day.

Re: 7.1 Earthquake in Japan

#202

Earlier quoted context omitted.

Propane tanks strapped to your house is common even in cities since it's cheaper to install (but then costs more per cubic meter). The downside to propane tanks is they become fireworks if a neighbor has a fire which heats them up. In Japan anyone who goes all-electric these days is getting a heat pump water heater ("eco-cute") by default, resistive electric heating doesn't really exist out of small plugin units like…

If you have a link to an "eco-cute" water heater, I would like to learn more. Thanks.

From a quick look, these are very similar to the heat pump water heaters that are starting to become common in the SF Bay Area (it looks like gas water heaters will be banned in the next few years, so people are hopping on the band wagon).

At a glance the only difference is the ones I am seeing have the heat exchangers in the body of the unit (so take the heat from the room where the tank is), whereas these "eco-cute" look like they put that outside the home.

Re: 7.1 Earthquake in Japan

#203

Earlier quoted context omitted.

> Electricity allows for so many more automatic safeguards. Since the mid-2000s there has actually been a push by Japanese utility companies for adoption of what they call "all-electric" オール電化. Adoption has been reasonably good with new-builds because they can also have solar panels. But adoption in older properties has been slower. First in general, electricity in Japan has tended to be more expensive than gas. Seco…

I’ve worked in appliance repair and have worked on induction cook tops. I wouldn’t recommend buying one. The fancier models have a stupendous number of circuit boards in them, and obviously a lot of power electronics, as well as cooling fans. Probably buy the cheapest model with the least number of features that you can bear the sight of, style matters in a kitchen, if you have to buy one at all. I’ve simplified by c…

Counterpoint - my dirt cheap entry level induction cooktop has been incredibly reliable. We cook intensely with it almost every day and have done so for years. Do I wish it was smarter? Sure. Is it faster to heat water than my old gas stove? Yup. Do I want even more power? Heck yeah.

Only having 1 large burner is stupid, and the 1 large burner it has could stand to be another inch or so wider.

But it has been a definite upgrade over gas. From better air quality to not heating my house up in the summer, to being faster to get pots hot.

> As they become more common and age, I predict induction cooktops will have a much higher failure rate than dumb rheostat controlled resistive element cooktops. Everything has a much higher failure rate than dumb resistive element cooktops. And they are much easier to repair with very few parts: a resistive element and a rheostat.

Agreed, resistive elements are simple, you can still find ones that are 30+ years old and working fine. Same with old gas stoves, easy to repair, dirt simple.

Induction requires fancy electronics, and modern circuit boards just don't have a long life expectancy.

Re: 7.1 Earthquake in Japan

#204
post #140

Earlier quoted context omitted.

I see some places in the Japanese countryside where homeowners get propane tanks delivered to them for cooking? I believe in an earthquake prone country, this is safer than having natural gas piped to their homes? The problem I think is that Japanese culture values hot baths daily. Heating water for the bath using electricity is still too costly.

Where I live in the US (near Seattle), there's no piped natural gas, most detatched houses have a 250-500 gallon propane tank. Seattle has piped gas, but my county never had the density to justify the expense to install distribution piping and now its disfavored. My house has a second tank for a backup generator. We use the main tank for our stove/range, water heater, clothes dryer, and a decorative fireplace that's…

> Seattle has piped gas,

This is block by block. Long ago Seattle asked home owners on each block to foot the bill to run gas. Many blocks said yes, some said no. For blocks where only 1 side was developed, the cost was higher and there was a greater chance of everyone saying no. That is what happened on the street I grew up on, when the city had asked everyone to pay for gas lines, there were so few houses on that working class block that it was cost prohibitive for everyone to pony up how much $ would have been needed.

So instead people had oil furnaces installed and now that block will at some point require serious environmental remediation. :/

Re: 7.1 Earthquake in Japan

#205
post #137

Earlier quoted context omitted.

If you aren't using induction, it's also slow, slow to heat, slow to cool. Yes you can get used to turning the heat up 5 minutes before you want hot. A down 5 minutes before your food is done. But it's a pain.

Induction is the trick. It's nearly as fast as gas.

Induction is faster than gas.

I had an issue when I first got induction where I'd warp my pans because I turned the stove up to max and the metal would get so hot so fast the bottom of the pan would bend.

Oops. Lesson learned.

Re: 7.1 Earthquake in Japan

#206
post #188

Earlier quoted context omitted.

> Electricity allows for so many more automatic safeguards. Since the mid-2000s there has actually been a push by Japanese utility companies for adoption of what they call "all-electric" オール電化. Adoption has been reasonably good with new-builds because they can also have solar panels. But adoption in older properties has been slower. First in general, electricity in Japan has tended to be more expensive than gas. Seco…

“People used to cooking with gas, cook better with gas” Induction offers the benefits of not emitting noxious fumes, the dangers of transporting gas over long distances in bulk, the fire hazards inside the home, and dependency on single source energy. Electricity, via induction cooktops, is often faster, more energy efficient, safer for everyone, and doesn’t depend on whatever regime or state wants to play games with…

> Induction offers the benefits of not emitting noxious fumes,

I don’t understanding this criticism.

Who in their right mind ie cooking inside at all without an externally ventilated exhaust fan? The moisture control issue leading to mould growth will destroy your health faster than hoofing nat gas combustion products.

I believe the nat gas combustion product health risks for home and commercial cooking are wildly overblown. Commercial kitchens are required to have certain ventilation requirements, as are all new home builds, at least in any jurisdiction anyone would want to live in.

> electricity is often sold at negative rates for most of the day and that electricity

Is it? Is it though? What evidence is there?

Negative rates may apply to the wholesale price, but I’m not aware of anywhere that passes that on to the residential retail customer.

In Australia, electricity retailers are require to offer a plan that has a 3 hour free period, which is usually in the middle of the day when everyone is at work, and the plans non-free-period rates are worse, as well as the daily supply charge being higher. Thereby resulting, in all likelihood, in people on those plans likely ending up paying the same or more, if they’re not obsessively fussing over their electricity usage.

What are you going to do? Set your induction cook top to fry your eggs for the next morning at 1pm? How’s that supposed to work? Cook your roast chicken in the tumble dryer, because your oven doesn’t have a 12hr delay timer? Admittedly some newer ovens do, because leaving a raw chicken at room temperature in the oven for hours on end is a great idea.

Like everything the Australian Labor government touches, it’s a sham. Including the battery subsidy, which just moves wealth from everyone else (taxpayers), but especially poor people, to already relatively wealthy home owners. All the while alleviating government and energy infrastructure industries of the responsibility of making investments they’ll have to maintain.

Not to mention Australia already has electricity prices that are ridiculously high, so even if you benefit from the three-for-free plan, you’re still worse off than you were five years ago.

And with the propensity of batteries to spontaneously combust and be nearly impossible to extinguish, EV and home battery owners, scooters and ebiked too, are soaking up resources of fire departments.

See StacheD on YouTube for an in exhaustible stream of battery fire nightmares.

Ah, the good old unintended consequences of poorly thought out government policy. Which are always poorly thought out, because a very few number of Australian politicians have ever had to worry about energy prices, because they are nothing but glorified career dole-bludgers.

Jacinta Allan’s, the recent former Premier of the once great state of Victoria, industry experience extended to a brief period as a grocery bagger before her and her drunken uni mates messed around with an Ouija board and some other gray magic and accidentally summoned demons who took their souls and parasitised their bodies.

Or did they summon the demons on purpose? Probably, comrades.

Nyet Zero, as Topher Field is fond of saying.

Re: 7.1 Earthquake in Japan

#207
post #102
post #90

Earlier quoted context omitted.

A hundred years from now people are going to be absolutely flabbergasted how we just piped gas everywhere all the time. Electricity allows for so many more automatic safeguards.

Electrical is inadequate power delivery-wise and requires completely different cookware to the point that it's a different cuisine. For example to replicate a gas burner you have to have above 15KW continious power. Good luck wiring that into your apartment, or feeding this with local solar. Or even finding an induction stovetop that won't melt its insides in a year or two at a measly 5KW.

50% of a gas burner's power goes into the air.

Every test done comparing residential gas vs induction burners has shown induction burners heat up pots and pans faster than gas.

Induction puts ~98% of the energy right into your pan. (Based on how losses are measured, some say 90%, whatever, it is way more than 50%!)

> Electrical is inadequate power delivery-wise and requires completely different cookware to the point that it's a different cuisine.

There are Chinese induction wok cooktops that have a curved bottom so a wok fits in and can be heated up all around. Sadly the ones sold here in the states are just 120v, really wish I could get my kitchen stove equipped with one of those running at full power. Though honestly even 240v is limiting.

Re: 7.1 Earthquake in Japan

#208

Earlier quoted context omitted.

Meanwhile here an 80 year old, completely unremarkable house is likely to get declared "historic" and you as the owner can't even change the windows without permission. Tearing it down would be virtually impossible.

If only a 7.1 earthquake came along to cull the herd every now and then?

Some of those old houses seem to burn mysteriously. Bad wiring, I suppose.

Then there was the developer who tore down a couple of houses over a weekend before the historical commission had a chance to meet and formally confer historic status on the rotting, worn out properties.

Re: 7.1 Earthquake in Japan

#209
post #157

Earlier quoted context omitted.

> For example to replicate a gas burner you have to have above 15KW continious power. Where are you getting this from? 15K BTU sure, but 15K watts? Do you mean the entire stove?

If I turn my old gorenje all out on four burners it'll output the likes of maybe 30kW give or take. The largest burner is I think about 15KW on full throttle and that does only acceptable wok or very smoky steak on cast iron ribbed pan. For a couple of years I had nothing but a 3.7kW inductions while I lived elsewhere. Two of them melted and warped from the heat to the point of breaking the top glass and forget about…

> If I turn my old gorenje all out on four burners it'll output the likes of maybe 30kW give or take. The largest burner is I think about 15KW on full throttle and that does only acceptable wok or very smoky steak on cast iron ribbed pan.

I have an American made dirt cheap entry level induction range. It is nearly a decade old. It gets used for wok cooking almost daily. During holidays I run all 4 burners non stop for hours on end.

Plenty of commercial kitchens are switching to induction as well, it dramatically reduces ventilation costs, and it provides better temperature control. For smaller kitchens, or when a lower cost build out is needed, induction is a huge win.

The technology is reliable, even if you unfortunately got stuck with bad implementations in the past.

Re: 7.1 Earthquake in Japan

#210
post #140

Earlier quoted context omitted.

I see some places in the Japanese countryside where homeowners get propane tanks delivered to them for cooking? I believe in an earthquake prone country, this is safer than having natural gas piped to their homes? The problem I think is that Japanese culture values hot baths daily. Heating water for the bath using electricity is still too costly.

Where I live in the US (near Seattle), there's no piped natural gas, most detatched houses have a 250-500 gallon propane tank. Seattle has piped gas, but my county never had the density to justify the expense to install distribution piping and now its disfavored. My house has a second tank for a backup generator. We use the main tank for our stove/range, water heater, clothes dryer, and a decorative fireplace that's…

Were you there for the earthquake in 2001? I was. I still find it surprising there hasn't been another large quake in Seattle since then. Pretty fortunate.
Post reply on HN