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New TMY Weather Data Larry Palmiter and Ben Larson August 4, 2008 Ecotope Inc.

New TMY Weather Data Larry Palmiter and Ben Larson August 4, 2008 Ecotope Inc. Presented at Regional Technical Forum Portland, Oregon, August 5, 2008. TMY Datasets.

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New TMY Weather Data Larry Palmiter and Ben Larson August 4, 2008 Ecotope Inc.

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  1. New TMY Weather Data Larry Palmiter and Ben Larson August 4, 2008 Ecotope Inc. Presented at Regional Technical Forum Portland, Oregon, August 5, 2008

  2. TMY Datasets • The National Renewable Energy Laboratory (NREL) releases Typical Meteorological Year (TMY) weather data every 15 years. The latest dataset, TMY3, was released in May 2008 • The TMY datasets are: • TMY1 1952-1975 234 Sites 22 NW Sites • TMY2 1961-1990 239 Sites 25 NW Sites • TMY3 1991-2005 1020 Sites 77 NW Sites • NW sites limited to WA, OR, ID, and MT

  3. Northwest TMY3 Data • There are two important features of the Northwest TMY3 data: • There is a large increase in the number of stations giving much better geographical coverage. • The TMY3 data show reduced heating degree days and actual heating loads in nearly all Northwest locations. The cooling degree days and loads show less change.

  4. Northwest TMY3 Sites

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