Regardless of how the electricity price is calculated, I for one am rapidly loosing faith in the whole drive towards net zero. I am a retired electrical / software engineer so understand the tech side of heat pumps to a certain level.
I would say I am a typical case of someone "retrofitting" (oil boiler is still in the system) a heat pump which has been done to a good standard and I have spent the last two winters fine tuning the system to run efficiently (COP 3.75+ and yearly SCOP of 4.25). I do not have the budget (like a number of households) to install solar panels and batteries to make my heat pump viable and why should I? From a financial perspective solar panels / batteries will take 15+ years in my case to pay themselves off before I start seeing the benefit, I will be 75+ by then and probably not living where I am now, so will be providing the system for someone else's benefit.
However I am constantly finding the good old oil boiler is undercutting my running costs to the extent I am starting to think there is a conspiracy going on that the Government is advertising to the world it is driving towards net zero but in reality the fossil fuel industry is holding the country to ransom to protect its interests. There again this country has proved time and time again that it could not organise a booze up in a brewery and I cringe every time a Prime Minister says they will make the UK a world leader in something, its embarrassing!
The main issue I am finding with tariffs is they are bias towards EV or heat pumps. If, like me, you have both, then you are financially penalised by one of the technologies. This is not the suppliers fault as they only have a certain amount of wiggle room within the price they pay to the wholesale market.
People ask me is it worth transferring to a heat pump, in the past I would say "yes" but I now say "don't bother unless you have very deep pockets to fund all the extra associated tech to make it work!". Most people do not have the £12k to put a heat pump in let alone the extra £15k to make it work!

@editor

A breakdown of the levy split across gas and electricity is in the table below.

I think it makes sense for some of the levy to stay on electricity. The Warm Home Discount isn't about the energy transition, it is about helping less well off people whatever their heating. I think everyone should contribute to that including heat pump owners. At the very least ofgem could split out the levy so it falls equally on each household irrespective of their choice of gas and electricity as a starter. Any shift will also be transitional as once gas usage falls the levy would have to switch back to electricity.

No government is going to raise national insurance or income tax so there is no chance of these costs shifting out of our bills longer term. There would need to be more bill  support for a lot of less well off households if the switch was made now. This would have to be added to bills in some way. Again I think it is right that this support falls on all via electricity. That still leaves a proportion of the levy to switch in the short term until it becomes unviable in the same way we now see annual road tax added to electric cars and the levy on petrol and diesel needed to be replaced at some point.

Care would need to be taken to ensure there were no unintended consequences in terms of profiteering and inflation.  This wouldn't benefit anyone in terms of the wider impact on interest rates, government borrowing or consumer sentiment to the overall Green transition and any potential shift to the right in politics which is happening all over the world. I think the main reason we haven't seen a change is politics rather than lobbying from the fossil fuel industry. It has been less risky to stay with the status quo.

Green levies April - June 2024

@editor 
Why This Must Change
The UK government needs to scrap the marginal pricing model and adopt a fairer system that reflects the real costs of energy generation. Here’s what must happen:

Real-Time Billing: Use existing technology to charge consumers based on the actual mix of energy sources being used. 1)

Fair Levies: Shift green levies from electricity bills to gas bills to encourage cleaner energy use. 2)

Price Transparency: Make it clear to consumers where their money is going and why. 3)

UK homeowners are already struggling with rising energy costs. Being forced to pay over the odds for clean energy while being tied to an outdated pricing model is beyond unacceptable – frankly, it’s scandalous.

Ok.... NO! 😁
1. At this stage of the game that would be really problematic. It would provoke unnecessary political push-back from the fossil-fuel backed anti-green lobby which is gaining momentum across Europe. This will be supercharged by Trump and the Tech oligarchs. I'm already seeing this with so-called independent analysts... 
2) It sounds great until you dig into it.... You will hammer the crap out of the low-income consumers and tenants who are stuck with gas. They will then either not vote or join the 'get rid of Ed brigade'.  Thus it needs approaching gently and differently. And please don't take inspiration from Behavioural Economics (which has a dark and dirty history) - ie no 'nudge' stuff 😁. Poorer people often don't get choices. I'll come back to this....
3) To be fair, the standing charges are clearly broken down on Ofgem's website and some Energy companies publish their charges as breakdowns. Even the esoteric Octopus Tracker has a formula (for the super geeky)... That gas plant story was horrendously misreported 
-0-
OK... until we remove gas as a form of heating and cooking for the majority of the nation we have to keep in mind the policy impact on low income people. 
A workable alternative imo is what I have suggested previously: charging banded by use with exemptions for people with mobility problems and the like.  
Spain, as I have said before, has three bands - it's a system that works quite well. A version of this would enable levies to be shifted according to the band also - that keeps costs down for the low income. 
Also, while several countries have marginal pricing the percentage of the charge added is lower than the UK's, in some countries considerably so. Some of our levies are nonsense as I said in my offering to Ofgem - policy tautology. They just need removing not shifting to gas. 
Please don't forget low income people.... It's not funny only being able to heat damp homes for a few hours at a time, trying to care for growing kids and spending huge amounts on energy bills and watching meters eat your money. I'll bang the class conciousness drum forever on this. 
First: The gas generating plants need regulation - this just couldn't happen in other European countries where regulation is not a dirty word. But it wasn't as bad as it sounds...
Second: The market is broken that's what needs changing. When the Balancing Mechanism called on gas plants the other day it was in part because the available BESS battery storage sold their power elsewhere - they got a better price.. We need to understand that the UK is selling energy as well as buying it and it's a high-speed, dog-eat-dog market. Interconnectors work in both directions. 🤷🏻‍♀️
Third: There's a lot of dirty dealing on the Dutch TTF market (where gas gets traded) that started when the Ukraine war kicked off - (mostly) US hedge funds pumping things up. This gets covered up by analysts and journalists with 'agendas' who claim 'dunkelflautes' [🤦🏻‍♀️] or 'geopolitics' or 'storage'.... and then parroted by the gullible rest. 
What does this mean? We are forever at the mercy of this nonsense because the entire system is rotten. It won't be solved by wind farms or solar because the same thing is likely to happen (unless you are off grid, of course).
In Sweden, before Xmas in the north of the country there was outrage during that alleged German 'dunkelflaute' week because they have a form of Zonal/Locational pricing and southern Sweden sold the electricity off to Germany (who was desperate) via inter-connectors. The north with all the green energy got charged hugely. The enormous pricing differences around Europe were eye watering as electricity flew around inter-connectors while traders made $$$s
Even Donald Tusk, Mr EU himself, wrote a paper arguing for the markets to be regulated... 
It really is the absolute nuts and bolts of the system that need redesigning. 

@lucia While accepting the point about not wanting to disadvantage low income consumers it seems crazy to address the problem through playing around with the energy pricing mechanism. Shouldn't we have an energy pricing mechanism which achieves the desired energy policy as efficiently as possible and deal with issues of equity and income distribution through the tax and benefits systems?

Mike

Mike - There are strategies whereby both goals could be achieved simultaneously.

One major issue we face is the possibility of having to upgrade the extensive 11Kv distribution grid.
Those costs are not included within the £60bn grid upgrade announced last spring by National Grid.

The red lines in the (anonymised) map are 11Kv

There is sufficient capacity on the 11kV supply network, but it's a long way short of being able to allow us all to run heat-pumps and EV chargers.
So it needs to be time-sliced.

That, in turn, requires new types of tariff...
... which are currently not available due to the historic regulatory system which sets energy pricing.
Grrr 😡 

However, the cost of having to upgrade the 11Kv cabling is extremely expensive, and most likely beyond the capability of the country to pay for it.
There comes a point where Government has to intervene in a process and say "Stop!"

We've already seen that with HS2, and the 11Kv upgrade is like "HS2 on steroids". 😮 

One possibility is to fit 10% of homes with storage batteries.
They could be configured to respond dynamically to the 11kV grid which serves that area.
Centralised control isn't required.

You would normally expect storage batteries to be installed by the more affluent households.

But suppose we did the opposite...

Why not incentivise Housing Associations to put battery storage in all their rental homes?
Those have a high proportion of residents in energy poverty and using pre-payment meters.

It's not generally appreciated that prepayment Smart Meters are just as capable of handling Time of Use (ToU) tariffs as those found in households with credit accounts.

That would allow GB to avoid the need to upgrade (most of) the 11kV grid,
whilst simultaneously benefiting the more socially-deprived section of the population.