we know 2day that energy can not be destroyed or created and nothing in stargate changes this law.
When atlantis was attacked on the episode The siege where did the energy go that was deflected off the shield. there was probly enough energy to melt the face of the planet in that attack. so where did that energy go? it could not have all absorbed because where would that enegy go? also if it was aborbed we could have used it to power the shield and therefore the shield would not run out.
also the shield uses a lot of energy to run so where does that go. if the energy was giving off then it would melt the whole planet in under 1 hour.
Is this a plot hole or does any1 have a good reason???