Laserfiche WebLink
TCAAP Energy Integration Resiliency Framework <br />Exhibits <br /> <br /> <br /> 99 <br />Normalized – Adjusted annual data of monthly building usage values measured on different monthly heating <br />degree scales to a common scale prior to averaging. <br />N+1 Redundancy – A measure of system component redundancy to provide backup in the event of failure of any <br />one component. N+1 refers to the number of units installed to carry normal load plus one additional unit as <br />backup. For example, if a system has three chillers to achieve the total design load, each is rated at 33% of the <br />total load, or N=3. For this example, an N+1 system will have a total of four chillers of 33% capacity for a total <br />installed capacity of 133% with one chiller providing backup in the event of failure of any one chiller. <br />Operations and Maintenance (O&M) – The activities related to the performance of routine, preventive, <br />predictive, scheduled, and unscheduled actions aimed at preventing equipment failure or decline with the goal <br />of increasing efficiency, reliability, and safety. <br />Outside Air Temperature (OAT) – A measure of the air temperature outside a building. The temperature and <br />humidity of air inside and outside the building are used in enthalpy calculations to determine when outside air <br />can be used for free heating or cooling. <br />Passive solar heating – A solar heating system that uses no external mechanical power, such as pumps or <br />blowers, to move the collected solar heat. <br />Peak load/ Peak demand– The maximum load during a specified period of time <br />Photovoltaic and solar thermal energy – Energy radiated by the sun as electromagnetic waves (electromagnetic <br />radiation) that is converted at electric utilities into electricity by means of solar (photovoltaic) cells or <br />concentrating (focusing) collectors. <br />PSI – An abbreviation for pounds per square inch. PSI is a unit of pressure measurement. <br />Rice Creek Commons (RCC) – The name of the land development project that is being led by Ramsey County, as <br />the land owner, on the site formerly known as the Twin Cities Army Ammunitions Plant (TCAAP). <br />Recommissioning - A type of commissioning that occurs within an existing, operating building to identify ways <br />the building operation is sub-optimal. The decision to recommission may be triggered by a change in building use <br />or ownership, the onset of operational problems, or some other need. Renewable energy resources – Energy <br />resources that are naturally replenishing but flow-limited. They are virtually inexhaustible in duration but limited <br />in the amount of energy that is available per unit of time. Renewable energy resources include biomass, hydro, <br />geothermal, solar, wind, ocean thermal, wave action, and tidal action <br />Resiliency – The ability to withstand disruptions to the regional or national energy grids or significant volatility to <br />the market price for energy sources. <br />Return on Investment (ROI) – The earning power of assets measured as the ratio of the net income (profit less <br />depreciation) to the average capital employed (or equity capital) in a company or project. Expressed usually as a <br />percentage, return on investment is a measure of profitability that indicates whether or not a company is using <br />its resources in an efficient manner. For example, if the long-term return on investment of a company is lower