Williams technical director Sam Michael has dismissed suggestions that the Grove team is preparing to push ahead with its KERS system for 2010 in the face of general acceptance that the technology should be ignored next season.

When the question of unity among FOTA teams possibly being split by Williams' apparent determination to chase the 'power boost' option, Michael retorted that there had been no decision to fly in opposition to the consensus.

"There's one thing to be clear on," the Australian insisted, "Williams have always said that we supported KERS, the concept of it, the ability to help F1 with sustainability and the environment. We haven't stopped the development of KERS and we never did do that, just like the other teams didn't. But I think, at the moment, we are discussing with FOTA the potential for an agreement not to run KERS next year. We are in the middle of that, in terms of days, so it would be wrong for us to come out and say that we are going to race KERS next year.

"In fact, we never said that. In any statements, if you read carefully, what we said was... at no point did we say we were going to race KERS, we just said we would continue developing it. I think, if you ask most of the people who have KERS, they're doing the same thing.

"So it's quite different to say that we're going against the grain of FOTA. We are in FOTA, we've only had one meeting in FOTA since we rejoined, so that is in the middle of process at the moment. I think it's wrong to say that Williams are going against the grain of FOTA, especially at this time when we are talking to FOTA about exactly this point."

Michael later agreed with other team representatives that F1 needed to work in harmony with the environment, particularly when taking decision on the future direction of grand prix technology.

"Obviously, we're not an engine manufacturer, but we do silly things with the engine manufacturers that we work with that trade off to road cars," he accepted, "As Norbert [Haug] said, there are very different objectives for road car development as opposed to F1. One example is to look at diesel technology - that was all the rage five or six years ago and swamped road cars - but it's not necessarily the right thing for F1. There are lots of examples like that."

Mercedes' Haug revealed that future F1 engine plans could take the sport in a new direction, but was quick to pay tribute to the advances that had been made with the current breed of technology.

"I think there are really very good plans for the new engine formula, but it takes time, obviously, and that's why we currently have this engine freeze," he reasoned, "But the next engine generation will certainly be very different.

"Having said that, we've got some experience with KERS and I think we are all very much pro-KERS but, if you have a competition and the KERS technique, then that just costs a lot of money. The technical guys, especially, would love to have that - and I don't know one technical guy who would not love to go in that direction - but the question is what can you afford and where do you put your money?

"I think we have to accept that the next engine generation will be something absolutely new and special but, having said that, the specific consumption of the current engine is an absolute world record. I just think sometimes we need to accept that, if you need to feed 750 horses, you need to give them more than if you need to feed 75 horses - that's very simple, but it's reality.

"And, if we have a total look at F1 and what's happening in terms of the environment, it's still a very positive issue all in all. But it's a conflict [between] what money you can spend, and street cars sometimes require different technical developments to racing cars. KERS hybrid was probably an example, but you cannot put it in the same way you are building it for F1 into a street car. But the principle is comparable and you certainly learn - we learned and we couldn't have made it without our people from production development, so it was a very good example, but an expensive one as well."

While BMW Sauber boss Mario Theissen admitted that, having been perhaps the most active supporter of KERS prior to its introduction, he could now see the implications of developing the technology from the point of view of a prospective privateer owner, Ferrari team boss Stefano Domenicali - one of those still using KERS on his cars - accepted that F1 needed to find a balance between leading the way with technology and keeping it both affordable and relevant.

"I think we shouldn't forget that F1 should be the pinnacle of motorsport but, in the actual context of the situation that we are facing, we need to make sure that the rules that are decided are well balanced, otherwise we run the risk of having expensive technology, not applicable for all the teams that want to run in F1," the Italian explained, "So, for sure, the future of the powertrain in 2013 has to be considered very carefully because, for sure, one important element to keep the constructors interested in the F1 business is to make sure that what we are doing here has a relevance in the automotive industry.

"But, once again, it's a matter of compromise, it's a matter of balance - the cost of bringing new technology within the framework of the regulations in F1 versus the reality that we have to have a lot of teams on the grid and they have to be able to spend money on that."