IMO Utility costs are only ever going to go in one direction....up!
Over the last 24hrs 180w is the lowest my house got to. All our none essential items (TV's, sky, Wii, etc) are on remote switches but we forgot to switch them off last night before heading to bed
Obviously, every house is different in terms of it's size and resultant usage. Since starting to work from home (a year ago today!) I've spent a fair amount of nerdy time swapping everything out and trying to cut back where possible. Our house / location is as follows:
Gas central heating with Combi boiler
3 floors and integrated garage
Loft conversion with 1 bedroom and 1KW Elect oil heater
Small study with 2.6KW Elect oil heater
3 bedrooms with central heating
1 bathroom (with 200w M2 underfloor Elect heating)
1 wet room (with 200w m2 underfloor Elect heating)
Dining / kitchen with central heating, 2 x Elect ovens and 1 x american fridge / freezer
Living room with stove
All our down lighters are LED (64 x 4w GU10s). Every other table lamp / pendant is low energy (12 in total & 1 gets left on all the time in the reception hallway)
The only Halogens are the 2 x security lights which are rarely used. I strung up some old christmas tree LED lights in the wood shed and garden so these are used when out getting wood etc.
I've installed PIR controlled lights in the utility, pantry, garage and wet rooms (the kids ALWAYS left them on!)
I use an OWL meter which sadly only measures the Elect. The next plan is to try and incorporate a Gas data logger but I'd need another type of meter which is a pain in the neck. Our daily KW average over the last 30 days was 19.63 Kw which I'm very happy with. Compared to a year ago that's down by circa 1/3rd.
The ultimate plan (other than building my own SIP / Passive house) would be to incorporate a photo voltaic panel on the roof to slowly trickle charge some large lead acid batteries and re-wire all my lighting to a new Elect lighting board and swap all our lighting to 12v MR16 LEDS. I need to win a few more contracts before that happens!
BTW I served my time as a sparky so I'm a bit nerdy with all such things.