Ontario introduced time-of-use (TOU) pricing to reflect the costs of producing electricity at different times of the day. There are three TOU periods: 1  Off-peak, when energy demand is low and less expensive sources of electricity is used. 2  Mid-peak, when the cost of energy and demand are moderate. 3  On-peak, when demand is highest and more expensive forms of electricity production are used.
Sheen Obsidian-this is a family of valued types which consists of sub-types categorized according to the effect or color displayed. Microscopic bubbles and/or crystals of Feldspar or Mica trapped in the Obsidian result in a chatoyant (irridescent) sheen when the stone is viewed from certain angles.heen Obsidian-this is a family of valued types which consists of sub-types categorized according to the effect or color displayed. Microscopic bubbles and/or crystals of Feldspar or Mica trapped in the Obsidian result in a chatoyant (irridescent) sheen when the stone is viewed from certain angles.
Fire Agate. Black Obsidian Stone is excellent used in combination with a number of different stones. To boost the psychic protection aspect of other stones,. you may choose to use them with other strongly protective stones to elevate the level of protection.ire Agate. Black Obsidian Stone is excellent used in combination with a number of different stones. To boost the psychic protection aspect of other stones,. you may choose to use them with other strongly protective stones to elevate the level of protection.