Hawaii Revised Statutes Division 1. Government § 46-87

Any other law to the contrary notwithstanding, a contract for the provision of utility services, goods, or commodities, including water or electrical energy, by a county or by a project party, may provide for the payment of liquidated damages by a purchaser or by the project party; provided that such liquidated damages provision shall be deemed reasonable and shall be enforceable if measured and established by reference to the proportionate relationship of the payments owed by the party subject to the liquidated damages provision to the total costs of the pollution control project, the cost of maintenance, operation, and repair thereof, and to the total operating capacity thereof.