This result was unexpected, especially since the heating degree-day
component was included in the interaction term.
information (including heating degree-day
and cooling degree-day
) is usually continuous.
Conjointly were studied three numerical integration rules of the quadrature method by Newton-Cotes, which were discretized at different intervals during each observation daily (ARENALES; DAREZZO, 2008), thus enabling twelve different forms of degree-day
of estimate by numerical integration.
Equations 8 through 13 were tested with the calculation of heating and cooling degree-day
bases of 0[degrees]C, 5[degrees]C, 10[degrees]C, 15[degrees]C, 20[degrees]C, and 25[degrees]C (32[degrees]F, 41[degrees]F, 50[degrees]F, 59[degrees]F, 68[degrees]F, and 77[degrees]F) for all 12 months, for over 1000 stations randomly selected from the stations listed in the "Climatic Design Conditions" tables in the 2009 ASHRAE Handbook--Fundamentals (ASHRAE 2009).
Each day's cooling degree-days
are summed to create a cooling degree-day
measure for a specified reference period.
Offers were solicited for heating degree-day
(HDD) swaps for the period of March 2009 for London Heathrow (LHR).
The calculation of heating and cooling degree-days
base 50[degrees]F (10[degrees]C) and 65[degrees]F (18.
are relative measurements of outdoor air temperature used as an index for heating and cooling energy requirements.
Temperatures for the twelve-month comparison were 3% warmer on a heating degree-day
basis and 33.
The service includes specific support for current and next week average temperature contracts traded on the Intercontinental Exchange(TM), current month degree-day
contracts traded on the Chicago Mercantile Exchange(TM) and OTC markets, and seasonal contracts traded in the OTC markets.
Originally an accounts receivable and degree-day
package, OIL-PRO has grown to be the most field-proven, flexible, user-friendly solution specifically designed for the Fuel Dealer.
A heating degree-day
is a unit used in estimating quantities of fuel or power consumption, based on a daily ratio of consumption and the mean temperature below 65 degrees Fahrenheit.
These indices include cooling degree-days
(65 degree base), heating degree-days
(65 degree base), and two growing seasonal, and annual periods.
during the past extremely warm winter were much lower than normal, and affected net income and earnings for utility and non-utility operations.
Energy usage intensity in BTUs per square foot, when superimposed on a graph of degree-days
, shows the effects of weather on energy usage.