(a) The orientation of new streets, lots and parcels;
(b) The placement, height, bulk and orientation of new buildings;
(c) The type and placement of new trees on public street rights of way and other public property; and
(d) Planned uses and densities to conserve energy, facilitate the use of solar energy, or both.
(2) The State Department of Energy shall actively encourage and assist city councils’ efforts to protect and provide for solar access.
(3) As used in this section, "solar heating hours" means those hours between three hours before and three hours after the sun is at its highest point above the horizon on December 21. [1981 c.722 §5]