Cant have ev car or solar panels or gas or heat pump!

prowla

Some suggestions:

• You might be able to get a plug-in solar setup; current prices are high, but they should recede to under £500 once the early adopter phase is over. It would only give you 800W though (at best on a sunny day, if South-facing); that's enough to cover the cost of household lighting and keeping the fridge running, but not cooking, heating, or even boiling a kettle.
• A starting point before going for the tech is to ensure the house is well insulated; there's no point in investing in heat creation if it's just going out through the walls, windows, or roof. That could reduce your bills.
• Cooking-wise, there are cost savings in cooking batches and re-heating in the microwave; it's not very glamorous, but helps if the bills are getting onerous.
• On the matter of boiling a kettle, I've just made a cup of coffee and filled a 1-litre Thermos for free, by using a Kelly Kettle; you do need a safe outdoor place to do it, though. (Beware that you might be accused of being a "prepper" if you go down that route though!)

Other thoughts/opinions:

• Beware of the headline savings for A2W heat pumps: whilst there are people for whom they do work, my quote from Heat Geeks was for £11,750 on top of the government Boiler Upgrade Scheme (BUS), which would also lose me the use of my patio; at that it would never achieve break-even in my lifetime.
• I'm open to having an EV, but don't have a compelling reason to go for one yet; I'd need a dropped kerb and to pave over my front garden to accommodate one, which would cost me.

QrizB

Not wanting to pour fuel on the fire, but reviewing this thread it seems the OP might have been misinformed. A lot of the options will need landlord agreement, but most of the things mentioned in the subject line seem open to them.

Cant have ev car ...

The OP can have an EV. Public charging is an option, and if they have suitable parking the landlord might be persuaded to fit a home charging point. The landlord can receive a grant towards the cost.

... or solar panels ...

Since August the OP can have plug-in solar. If they want rooftop solar they'll need the landlord's agreement. If they're on a low income they might qualify for Nest (the Welsh equivalent of the English Warm Homes Grant scheme).

... or gas ...

If the OP's home is not served by mains gas, then mains gas isn't an option. LPG might be, with the landlord's agreement, but a heat pump is probably a better choice.

... or heat pump!

I have a portable plug-in heat pump and it seems to work well, and the OP could have the same. Or with the landlord's agreement they could have a permanently-installed one, either a wet ASHP or a dry AAHP. Nest again might provide funding if they're on a low income.