OK, so I've put my head above the parapet by asking:
"... for all of us, if we are going to make changes in our energy, we need targets. What are yours?"
I've been poking my church too, with its £9,000 annual bill but with no temperature monitoring in place. We have plenty of radiator thermostats, but a lot of user fingergepoken and no clear temperature indication. How much does that bill justify on upgraded monitoring and control?
My flat's electricity consumption was 2,475kWh/year over four years (2003-07), but measuring it over the last four weeks, it's down 33% to 1,650kWh/year. However, that's with just me in residence. A mixture of low energy lightbulbs, not leaving things on standby, not overfilling the kettle and so on. But you could also say that, by not having a lodger the usage per person has actually gone up!
This is actually a big issue. The percentage of one person households in Scotland has been rising steadily ...
- 1981 22%
- 1991 29%
- 2001 33%
- 2006 34%
[Source : General Register Office report - Estimates of households and dwellings in Scotland, 2007 - Table 9]
Looking to the future, according to the latest Household Projections for Scotland issued by the General Register Office for Scotland, the government thinks this will continue to rise:
Between 2004 and 2024, the number of households consisting of just one adult will increase from 770,000 to over a million – making up over 40 per cent of all households in Scotland. The total number of households is projected to increase by 13 per cent to 2.5 million - an average of 14,800 additional households per year.
Meanwhile, my gas consumption has gone down year by year, which perhaps reflects different tenants ...
* 2003-05 Natasha 13,749kWh/year
* 2005-07 Jacqueline and Liana 13,067kWh/year
* 2007-09 Jacqueline and Sarah ... and Neil 11,988kWh/year
But that's still only a 13% decrease. Where do I start with a target? Firstly, get a lodger so I can divide my household usage by two! Beyond that, should I replace the boiler with a more efficient one even although there will not be a commercially attractive payback? How much energy does the new boiler cost to make?
But initially the key step is monitoring - knowing where it goes - so as to pick up the easy steps first. For example, there is a lot of rubbish talked about devices using energy while on standby. Some do - others use nothing. I plan to use my power meter to see just where the electricity is going, and to upgrade some of my building insulation (although there is a limit as to what you can do with my 1903 building.
I've also suggested that my church considers a 10% year-on-year reduction. Would we be prepared to commit ourselves as a holistic community to three steps:
reducing the CCE energy usage (kWh/year - ) by 10% over the previous year (2008 = base year), each year for the next ten years. Thus by 2018 it will be 35% of 2008 level. Perhaps we could omit electricity from renewable sources under certain circumstances.
a target of 70 CCE households signing up to reduce their domestic energy usage by 10% over the previous year, with the option to sign up for transport too.
provide signposts to sources of support for those who sign up, including organising basic seminars and services on auditing your usage and preparing an action plan.