AirSorc Elementalist build

Class: Elementalist / Mesmer

Assumed items:
+1 to Energy Storage
+2 to Air Magic

Attributes: (cost)
Energy Storage: 10+1 (61)
Air Magic: 11+2 (77)
Inspiration Magic: 10 (61)

Total attribute points used: 199/200


Skills:
1) Channeling (availability) - (5,1,15) For 40 seconds, whenever you cast a spell, you steal 1 energy from each nearby foe.
2) Aura of Restoration (availability) - (10,14,20) For 60 seconds, you are healed for 334% of the energy cost each time you cast a spell.
3) Air Attunement (availability) - (10,2,60) For 57 seconds, you are attuned to air. You gain 30% of the energy cost of the spell whenever you use Air Magic.
4) Ether Renewal (availability) (elite) - (10,1,30) For 10 seconds, each time you cast a spell, you gain 4 energy and 16 health for each enchantment on you. This is an elite skill.
5) Lightning Orb (availability) - (15,2,5) Lightning Orb flies towards target foe and strikes for 88 lightning damage if it hits. This spell has 25% armor penetration.
6) Lightning Strike (availability) - (5,1,5) Strike target foe for 44 lightning damage. This spell has 25% armor penetration.
7) Enervating Charge (availability) - (10,1,8) Target foe is struck for 44 lightning damage and suffers from weakness for 18 seconds. This spell has 25% armor penetration.
8) Lightning Javelin (availability) - (10,1,5) Send out a Lightning Javelin that strikes for 45 lightning damage if it hits. If Lightning Javelin strikes an attacking foe, that foe is interrupted. This spell has 25% armor penetration.


this is my energy efficiant elementalist build
as long as i can keep my first 3 chants up and ether renewal up when i can, ill have some decent energy at most times.
i think this is a good combination of healing/energy control/damage

what do you guys think