Martin wrote:if we look at the way energy prices have risen recently, it strongly suggests that all will go on up in price - the question is "how much?"
I've heard conservative estimates of 10% per annum - does anyone have any insights?

Hi Selfsufficient-ish people - this is my first post so please go easy on me :)
I think it will prove to be very difficult to predict exactly how much energy prices will go up; there are just so many variables to try to resolve. However, there are some strong trends in the UK energy sector that give us an indication of where things are going in the future.
UKCS (UK Continental Shelf) gas production is currently declining very rapidly, so new, large scale infrastructure needs to be built to accomodate new imports. The costs of constructing the Langeled pipeline, the upgrade to the Belgian interconnector and the proposed LNG terminals at Milford haven, as well as any other new projects slated for the future will need be absorbed by future supply contracts. This implies an additional overhead being applied to wholesale gas prices - and therefore more expensive gas and electricity - for the foreseeable future
However, the story doesn't end there. This is a slide from a presentation delivered by Steven Fawkes, Head of Energy Solutions, Npower at the recent North West Energy Forum annual conference (apologies for the size of the image!):
We can see that about a quarter to third of the UK's existing coal-fired generating capacity is due for closure by 2012 as part of the large plant directive to reduce CO2 emissions (coal plants have to either opt-in and clean up their emissions & improve efficiency or opt-out and close).
Also, the decommissioning schedule for the UK's fleet of nuclear reactors gradually erodes the remaining capacity, as does the end of oil-fired generation.
Looking further out, we need to replace about 50% of our generating capacity (some 40GW) by 2020 if we are to maintain "business as usual" - this is an absolutely enormous task that implies investment on a massive scale. This in turn suggests that robust electricity prices will be sustained for at least least the next 15 years - probably longer - as generators seek to claw back their investments.
As for global oil production forecasts, I'm inclined to agree with Stonehead that there are likely to be volatile times ahead. It is certainly difficult to imagine how the growth-dependent global economy can reconcile itself to diminishing supplies of net energy.
My hope is that we can emerge from the ensuing chaos with a less materialistic, more localised, community-oriented and sustainable society.