Uplift

(a) The upward pressure in the pores of a material (interstitial pressure) on the base of a structure. An upward force on a structure caused by frost heave or windforce. The upward water pressure on a structure.

The upward pressure in the pores of material (interstitial pressure) or on the base of a structure.

Charges from an RTO/ISO collected outside of the market-clearing commodity price; these charges can include payments to reliability must run (RMR) units, other out-of-merit-order power purchases, administrative costs of the RTO/ISO, or other cost categories.