imeasure use "CO2" as a surrogate measure for "energy use".

They are really pitched at helping the vast majority of the population whose energy sources do emit CO2 to reduce their energy use (the demand side). That seems reasonable to me, given that renewables are a v. small percentage of energy used (overall, not in the individual case - YMMV) and that negawatts are absolutely fundamental in reducing CO2.

Presumably, people who are motivated to invest in renewables for their own use off-grid are also committed to reducing energy use? Otherwise it would be fine for an individual (assuming limitless wealth/land) to specify a massive system (with the greater embodied energy that implies) to supply completely profligate use. But that's not fine. If someone is off-grid, lower energy demand makes possible renewable systems with lower embodied energy. If someone is grid-tied, then lower energy demand enables them to export energy - thereby reducing someone else's CO2 emissions. Therefore, negawatts are important regardless of the source of your kWh.

Do you have a meter or meters you can read easily? You can input up-to-date data from them. If your bill has been out by a factor of ten in the past, you might want to forget retrospective data from bills. Garbage in, garbage out and all that.

imeasure does peversely incentivise procreation - future carbon footprints, be damned!

By my reckoning I don't need more insulation etc., I just need 8 more kids ...peversely incentivise procreation? ...my other half has said no... oh well, back to insulating then

Rest of family was away a few days though I was here all but one day hermit-like.

I think that iM is reporting the wrong week on the Carbon Club page at the moment which confuses things.

I assume that you have given at least one child away over Christmas, given how badly you are slipping!

All meters are being faithfully and accurately recorded. (Imports for the whole year only about 1MWh of electricity, bill for last qtr of 2010 < £70.)

Rgds

Damon

James: just to be clear having re-read your post...

The electricity number I record in iM is the import meter value as-is.

So that is somewhat lower than if I had no PV, but just to put bounds on that our gross consumption for the whole year was about 1500kWh of which the import meter showed 1050kWh-ish, so on average that figure shows most of our gross consumption and gives no credit for any export.

Does that answer your question properly this time?
Rgds

Damon

Been on iMeasure intermittently for a while, but finally got round to entering all the meter readings I have access to this weekend. I think my current E rating show's that I've still got a lot of work to do...

About my household:

Occupants: me, plus occasional other half
House type: 1981 detached 4 bed barratt box, with mid 90's extension to bathroom and smallest bedroom
Internal heated area: 128m2 (equal upstairs/downstairs)
Heating: Original boiler (I know it needs replacing, just need a round-tuit) feeding HW tank, radiators and underfloor to lounge and kitchen
Walls: Block and brick cavity, with glasswool CWI in 60mm ish cavity
Roof: 0-200mm glasswool between and across joists
Windows: late 90's uPVC double glazing of unknown quality, with alu framed sliding door to lounge
Lighting: CFL everywhere except (unused) halogens in kitchen, and downstairs wc
Whitegoods: A+ rated fridge, C rated washer, unknown freezer.
Microgen: none yet

I think the energy figures on the label on it work out to be 60-65% efficient, and it's had 30 years to reduce in efficiency so it is quite bad. Heat pump could work, but the radiators are on the small side already, though I do have a reasonably large garden to put a GSHP in.

Hello,

I signed up to the group on imeasure a little while ago and thought I'd better get round to an introduction

About my household:
Occupants: 2 adults, 2 children (youngest still pre-school, so somebody is at home most of the day)
House type: 1920s 3 bed semi
Internal heated floor area: not sure - need to measure this
Heating: gas CH (very old boiler) supplemented by wood-burner (Pioneer)
Walls: Solid brick with EWI on front and side
Windows and front door: all double glazed, although stable back door and french windows at back of house are wooden single glazed
Lighting: all low energy lightbulbs
Whitegoods: A rated fridge, B rated small freezer (lower energy use than most of the A rated ones!), A rated dishwasher (mostly run on 'quick' setting which uses less energy than the eco setting), A rated washing machine - mostly used at low temperatures
Microgen: none yet, solar hot water planned for this summer

Usage for 2009 - 2010 was 12,573kWh

Can you please separate for us your gas and electricity kWh? They are apples and oranges (1kWh of electricity can do the work of 2 or 3 or more kWh of gas).

Rgds

Damon

Mean UK household values (when heating with gas) are about 18000kWh/y gas and 3300kWh/y electricity, so you're doing well on both already! B^>

Rgds

Damon

I've been in Imeasure for some time, but it was wrong before (my ancient electricity meter was running backwards for 8 months summer PV). Now after actually getting a new export meter recently, I've deleted loads of the old records, and begun again with the export meter and total generation as separate meters. This is still added up by the system as positive not negative, meaning we get "scored" twice for that we didn't use!

Still despite that, it's handy as a log. Nothing I couldn't do with Excel of course, but I like to support a good initiative even if it has it's flaws.

Oh, and I joined GBF club. I don't think we can read much into the results if it comprises people with microgen and /or backwards running meters!

Just joined Imeasure I put in two adults, one teenager, two children- it says we have 3 people - is that normal? Seems a bit harsh!

Our energy consumption this past week is everything barr than heat and DHW as that's all solar. We have no PV (yet).

29 kg of CO2 sounds high - is it? 2 adults, 1 teenager, 1 child (actually two half-timers).