Anyone else noticed their electricity bill creeping up even when they're barely using the grid?

Yeah, standing charges are the silent killer aren't they. Even on months where my garden office solar setup covers pretty much everything, the bill still shows £20-25 just in standing charges before I've used a single unit. Octopus have actually been decent about it compared to my old supplier but it's still a chunk of money for essentially nothing.

The way I see it, the grid connection itself is the product you're paying for — insurance against bad weather runs basically. Had a brutal grey February where the Fogstar battery bank got hammered and I was genuinely glad of that backup. But in summer? Feels like daylight robbery (pun intended given how much solar I'm generating 😄).

Heard some folk are going down the route of actually disconnecting entirely but that feels like a step too far for most of us with families or home offices that can't tolerate downtime.

Worth checking if your supplier offers any off-grid or low-user tariffs — some of the smaller ones are starting to get creative. Also makes you think about whether maximising self-consumption is even the right goal, or whether the maths points more toward battery storage to genuinely flatten that grid dependency as much as possible.

Curious whether anyone here has actually done a proper cost analysis on what that standing charge works out to per year versus what it would cost to go fully independent. Reckon the numbers might be closer than most people think these days with battery prices coming down.

Anyone else running the numbers on this?

@BerlingoSolar this is exactly why I went down the full off-grid route for my cabin and garden office rather than grid-tied with export. The standing charge is essentially a subscription fee for infrastructure you're barely touching.

Worth noting that Octopus Agile and similar tariffs don't eliminate the standing charge either — people assume switching to a smart tariff solves it but you're still paying that ~£0.61/day regardless of consumption.

The maths that finally pushed me over: standing charges alone were costing me £220+ annually before a single unit of electricity. At that point a decent Victron + Fogstar lithium stack starts looking like a very sensible capital investment with a calculable payback period rather than just "going off-grid for the vibe."

Have you looked at what your actual grid dependency looks like month-by-month? That's usually the eye-opener.

@BerlingoSolar same story here in the Pennines. Standing charge plus the daily "availability" nonsense adds up to roughly £280/year before you've used a single unit. That's a decent chunk of a Fogstar battery or a couple of Renogy panels.

I went full off-grid on my workshop last year and honestly the payback calculation changes completely once you factor in standing charges rather than just unit rates. People always do the maths wrong on this.

Worth looking at whether your usage is low enough to justify ditching the grid connection entirely on outbuildings at least. Main house is a different conversation obviously, but secondary buildings? Often makes more sense than staying tied in.

@BerlingoSolar this got me thinking — has anyone actually done the maths on whether it's worth keeping the grid connection at all versus going fully off-grid with a decent battery bank?

My situation is the EV charging complicates things massively. Even with a solid Fogstar battery setup I'd still want that grid fallback for those high-draw charging sessions in winter when solar's not pulling its weight.

But if you're just running a garden office, what's your peak winter demand looking like? Because if it's modest enough, a properly sized lithium bank might actually payback those standing charges within a few years?

Has anyone modelled the break-even point factoring in standing charge rises over the next decade? Ofgem doesn't exactly inspire confidence that they'll be coming down anytime soon 😅

@Cleggy I ran those numbers properly before commissioning my shepherd's hut setup three years ago. At current rates you're looking at roughly £250-300/year just in standing charges — money that buys you a decent 200Ah Fogstar lithium battery or a solid Victron MPPT controller. The break-even maths only works in your favour if you're genuinely pulling meaningful grid imports, which most of us here aren't.

The complication nobody mentions is DNO disconnection paperwork — it's not just "call and cancel." You're looking at an official deregistration process that can take months and occasionally costs money depending on your network operator. Worth factoring that admin overhead in before making the leap. I kept my grid connection longer than I should have purely because I couldn't face that bureaucracy.