powerUnitEnum

<xsd:simpleType name="powerUnitEnum">
  <xsd:restriction base="xsd:NMTOKEN">
    <xsd:enumeration value="Watt"/>
    <xsd:enumeration value="Kilowatt"/>
    <xsd:enumeration value="Horsepower"/>
    <xsd:enumeration value="KilogramForceMeterPerSecond"/>
    <xsd:enumeration value="BtuPerSecond"/>
    <xsd:enumeration value="FootPoundForcePerSecond"/>
    <xsd:enumeration value="KilocaloriesPerSecond"/>
    <xsd:enumeration value="BtuPerHour"/>
  </xsd:restriction>
</xsd:simpleType>