....mostly obvious, but unpalatable: let ANYBODY sell electricity on the grid auction: the grid is paid off a percentage of the turnover, BUT:
1. any producer registering on the exchange has to declare both the maximum and the minimum
that it can make available to the grid over a yearly period in 30 minutes interval;
2.additional payments to the grid are made by producers on a log scale proportional to the difference between the two, i.e.gas turbine plants, who have a continous productions, would make additional payments (in fact, receive less money) of zero
, wind would probably declare a relatively small difference, solar would declare zero as a minimum, and therefore pay the most in reduced revenues;
3. by all means, allow those renewable producers that buy continous availability from others
to declare it on a form countersigned by the guarantee producer.
In this manner, pricing of the interruption risk is paid by those who cause it, and the cause-effect relation is evident. Make no mistake, William of Occam is my master, and I am not in favour or against renewables: I treat the matter as the analyst I am, most of my job is "stripping the fudge" from numbers, i.e. analyse and take away the fiscal and regulatory incentives that mask the fact that something is unviable by making somebody else pay without telling him in so many words
.This solution offered by the minister is a case in point. let me help there.
[...]"Rasmus Helveg Petersen, the Danish climate minister, says he is tempted by a market approach: real-time pricing of electricity for anyone using it — if the wind is blowing vigorously or the sun is shining brightly, prices would fall off a cliff, but in times of shortage they would rise just as sharply.
that would give the final payer the false impression that the problem is about not having enough renewable energy continuosly, instead of saying that most renewables are inherently unstable sources per se. By making the continous producers making most of the revenue in the brief moments when they are indispensable, you are knowingly exposing them as ruthless speculators, gnawing away at the needs of the People all in the name of profit."Gas plant near Copenhaghen taxes a Citizen 200 EUR a day for its energy!", and so on. All the while making hush-hush deals and promises, to keep the "real" producers from closing the plants for good, we do not want the innocent Danes to know that there is no Tooth Fairy, do we? And if we work out the math for that citizen, i.e. that those 200 Euros are a lump sum insurance payment for energy availability, working out at 55 cents a day, and oh the horror, that the politicians knew this before work had begun on the renewable plants, that they will know.