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From: KevinJ93 <kevin_es@whitedigs.com>
Newsgroups: sci.electronics.design
Subject: Re: British (european?) kitchen counter electric outlets
Date: Mon, 10 Jun 2024 18:16:59 -0700
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On 6/10/24 7:34 AM, john larkin wrote:
> On Mon, 10 Jun 2024 08:00:18 +0100, Jeff Layman <Jeff@invalid.invalid>
<....>
>> How long is a piece of string? It will depend on personal preferences,
>> weather conditions, how efficient the heating system is (including
>> losses), etc. We have a "price cap" in the UK which - sort of - controls
>> the prices of gas and electricity. From
>> <https://www.bbc.co.uk/news/business-58090533>: "From 1 July until 30
>> September, gas prices will be capped at 5.48p per kilowatt hour (kWh),
>> and electricity at 22.36p per kWh". It would be possible to find (much)
>> lower prices than those, depending on the tariff used from the company
>> who supplies the power.
>>
>> I'm not sure if you can see that BBC page in the USA, but if so there's
>> a lot more information there.
> 
> I wonder how gas can be rated in KWh. That must asssume some sort of
> gas-to-electricity converter machine.

The US uses the antiquated British Thermal Units (BTU) for gas billing.

A single BTU is equivalent to 1054J or about 0.293 Wh.

They are normally billed in groups of 100,000 BTUs called a Therm 
equivalent to 29.3kWh.

Current rates for gas in the SF Bay area are about $2/Therm.

This is equivalent to ~7c/kWh, electricity is 40-60c/kWh depending upon 
time of day etc.

Even accounting for 10-30% loss in gas appliances gas is cheaper than 
using a heat pump with a COP of ~3-4 for space and water heating.

kw

> The easy way would be to compare direct gas heating with resistive
> electric heating, both of which are crazy inefficient.
> 
> There is a movement here to eliminate gas to Save The Earth. Berkeley
> CA forbids running gas to new-construction homes. I'm sure that will
> keep Climate Change from affecting Berkeley.
>