Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: KevinJ93 <kevin_es@whitedigs.com>
Newsgroups: sci.electronics.design
Subject: Re: energy in UK
Date: Sun, 20 Apr 2025 09:57:50 -0700
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On 4/20/25 12:12 AM, Don Y wrote:
> On 4/19/2025 12:38 PM, KevinJ93 wrote:
>>> How short is short?  OUR gas and electric are adjacent.  But, many homes
>>> have the gas meter in an alley while the electric is on the load center.
>>
>> I don't know - I imaging a couple of tens of meters. They use ~450MH 
>> for the gas meter link and ~920MHz for the electric meter.
> 
> 60-70 feet would likely be pushing it -- depending on what's in the
> line of sight, dead spots, etc.  E.g., often, the meters are sited
> for ease of access /by the utility/.  So, may be "outside" any masonary
> fences that enclose the property so the meter-reader (historically,
> a person) doesn't have to do anything to gain entry.

In difficult cases a bridge direct to cellular can be installed.

> Seeing them, all "exposed" like that, always makes them look vulnerable.
> But, I guess no one has found a worthwhile exploit to vandalize them.
> 
>> Where the network coverage or location of the meters precludes the 
>> usual arrangement PG&E have various RF bridges that can be used.
>>
>>> So, the gas company has an agreement with the electric utility?  When I
>>> was doing this stuff, comms was the big challenge (measuring power
>>> and tracking it -- internally -- is easy.  But, getting a tariff with
>>> "someone" to haul the data back to the utility was a political/business
>>> issue not easily addressed with technology.
>>
>> For our local utility and many others in California the same company 
>> distributes both gas and electricity.
> 
> Ah.  That would make is easy, of course,  And, architects would take that
> into account when designing homes.
> 
> Here, for example, even two "cookie cutter" homes will often have
> different connections for each of the utilities.  My neighbor and I
> share a common trench for gas supply.  But, not electric (which
> is located adjacent to gas meters in both our cases).
>

In general gas lines and electric lines are not allowed to share 
trenches for safety reasons.