Tidal power is one that i would think rules the roost.....flippin garunteed....but could be adversely affecting the environment!
Solar power IS flawed, we do get clouds...this country is not practical for solar power at all! (England).
Hydroelectric dams WOULD be great - but there isn't that many locations in the UK that are suitable at all When you find they are converting old water mills into mini hydroelectric power stations....you realise just how bad the situation is! I know Powergen are working upon even small rivers to generate hydroelectric power...but it could have an adverse effect on the environment...so it all needs careful testing.
Wind farms ARE useful, and very good. I went to the Isle of Muck - where ALL their power comes from their own single wind turbine. Admittedly there aren't that many inhabitants (28 whilst i was there), but in some areas there is near a constant wind....mainly coastal areas due to temperature differences over land and sea (propogates wind).
Large windfarms can be built upon Islands that are uninhabited....and also off the coast as well. They do NOT turn fast...so birds flying into them is possibly they worst pile of bumkin excuse i have ever heard. Noise? they do make some noise, but i would MUCH prefer to live near a windfarm than an airport, motorway, or large industrial plant. There are plenty of people who live next to them - so "noise" is another lame excuse for saying no to windpower. Simply put - if located correctly, you would not hear, or see, the power generators at all!
How many of you have actually noticed them? There are some in Yorkshire....quite a few actually, and no - their output is not significant to power a city, but its very green, very renewable, and can certainly be used for small villages/hamlets etc. For towns and cities you would need a substantial amounts of windfarms...
Since i spent two weeks on the isle of muck - i think that qualifies me for living within 100meters of that windmill - and i didn't hear it at all.
However, the biggest impact for now would be if people actually started making their OWN differences. Turning off lights, turning off TV rather than leaving it on standby* and insulating things properly. Boiling too much water in a kettle (work pisses me off as they fill 2litres to make 1 flippin cup...and if someone is boiling one kettle, they turn the other on instead!!! Makes me mad!). Turning thermostat down by 1degree lowers bills by 5-10%!! If everyone started doing their bit in just fitting energy saving light bulbs then it would be a great start! They won't though - people are far too pig thick and ignorant...not to mention plain bone idle and lazy...to put in the effort. Its all far too much for present society.
*Standby uses 85% of the power of leaving the television ON permanently playing! Turn the damned thing off!!!
As for it should all be weighed up by a cities consumption as to what is best......bumpkin once more.
Simply put - the best for each location needs to be discussed for those building it. For hamlets and villages, wind and solar maybe enough on its own. Cities would need something more substantial - but more power is used elsewhere other than just cities!!!
Meh - I went a bit on my "crusade" there, but this is an interesting subject, and i thought i would stamp....i mean view!! my opinions upon it too