Green Building Bible, Fourth Edition |
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Posted By: fostertomIn other words, with smart metering, is the supply during lo-tariff periods (when supply can't be shut down enough to match demand) inherently composed of some inconveniently-timed peak of renewable energy - or in fact the reverse, composed of non-shuttable fossil (or indeed nuclear)?
Posted By: RobLalso be forced to mostly make use of more conventional prices similar to E7Not sure why, necessarily - that wd depend on how much of the (new breed) storage heater capacity you install, as well as the shape of the curve of tariff against time, and how far into 'merely moderately good' tariffs you'd be prepared to go.
Posted By: djhElectricity is priced in advance for domestic purposesIs that so even with deep' smart-metering (e.g. pricing by highly variable half-hour chunks)? The recent tales of Texans on variable-rate tariff being charged $1000 per kWh or something can't be 'priced in advance' - sounds very 'spot'.
Posted By: djhElectricity is priced in advance for domestic purposesIs that so even with 'deep' smart-metering (e.g. highly variable pricing by half-hour chunks)? Recent tales of Texans being charged $1000/kWh sounds pretty 'spot'!
Posted By: djhso it might be middle-of-the-night nuclear or it might be middle-of-the-storm wind
Posted By: fostertomPosted By: djhElectricity is priced in advance for domestic purposesIs that so even with deep' smart-metering (e.g. pricing by highly variable half-hour chunks)? The recent tales of Texans on variable-rate tariff being charged $1000 per kWh or something can't be 'priced in advance' - sounds very 'spot'.
Posted By: fostertomEven if so, I don't follow why that particularly meansPosted By: djhso it might be middle-of-the-night nuclear or it might be middle-of-the-storm wind
Posted By: fostertomthat wd depend on how much of the (new breed) storage heater capacity you instal
Posted By: fostertom
In other words, with smart metering, is the supply during lo-tariff periods (when supply can't be shut down enough to match demand) inherently composed of some inconveniently-timed peak of renewable energy - or in fact the reverse, composed of non-shuttable fossil (or indeed nuclear)?
Posted By: WillInAberdeenSo then using resistive electric heating will be carbon-free and guilt-free and you can rip out all of your insulation and burn it in your wood burner...
Posted By: djhDo you mind saying more about this Dave, if it's something you've studied? https://electriccarhome.co.uk/smart-meter-tariffs/ talking about e.g. Octopus Agile, says "48 rates a day, tied to wholesale prices (this is radical stuff)" - does even that mean "priced in advance for domestic purposes"?Posted By: fostertomPosted By: djhElectricity is priced in advance for domestic purposesIs that so even with deep' smart-metering (e.g. pricing by highly variable half-hour chunks)? The recent tales of Texans on variable-rate tariff being charged $1000 per kWh or something can't be 'priced in advance' - sounds very 'spot'.
Yes
Posted By: WillInAberdeenBetter radiators Tom.
Or A-A heatpumps.
Posted By: WillInAberdeento enable the renewable and CCS/H2 electricity supply to grow faster than demand does
Posted By: fostertomThanks Dave. I wonder if anyone will introduce a tarrif, for the brave and tech-savvy, which really follows spot price, the consumer relying on their own decision-making mechanism (algorithm?) as to whether to connect or disconnect. I guess that would be an 'industrrial' tarriff.
Posted By: fostertomTo return to the original proposition/thought/query, it's looking around for a non-fossil alternative, for heating those houses etc which will remain 'hard to insulate' for good reason (i.e. not just because of failure to insulate properly) such as Listed Buildings, where the exterior (or principal elevations) can't be EWI'd and interiors also are too precious for IWI.
I see plenty of those
...
So what alternatives?
Posted By: fostertom
A-A means ducted warm air, in a typical non-open-plan Listed Building - not feasible.
Posted By: djhWhen we have a carbon tax (or externalise environmental costs some other way)I guess that'll be 'internalise'?
Posted By: fostertomInteresting - how would you distribute heat as warm air from an air to air heat pump, without ducting (substantial), around a sprawling (horizontal) or multi storey (vertical) Listed Building? Note - you'd work hard to find just one visually acceptable position for a single centralised air inlet/exhaust or 'box of fans' - no question of multiple (distributed) smaller units.
Posted By: owlmanHowever it can also be converted to warm or cool air via multiple single room indoor units. These can take various forms; wall, ceiling, low floor mount, etc.. The microbore refrigerant pipework, a power cable, and condensate pipe are the connecting requirements. Controls can be either hard wired to wall controller or hand held, or both.
Posted By: fostertomGiven the latter, there's quite a lot that can be done with LBs if lucky enough to be allotted an 'enlightened' Listed Buildings Officer - but still a lot more that shouldn't. I cd give many examples of things that look fine, totally respecting the building, but are usually forbidden, as if energy etc negligibly important.