A computer-implemented system and method for determining point-to-point correlation of sky clearness for photovoltaic power generation fleet output estimation is provided. More particularly, highly compactable calcium carbonate granulations are disclosed. Bipolar transistor circuitry is formed over the sub-collector region. The apparatus and method are particularly applicable to sealing a puncture made when inserting a catheter into an artery or other vessel. A second inclined surface is opposite the first inclined surface, inclines toward the center of the cavity to the front, and is tapered so that the first inclined surface becomes gradually narrower toward the front.