Stan, You can find the "equalities" and more (from non-SI to SI) in NIST SP 330. That is the direction of global movement. Ignore the reverse equalities from SI to non-SI.
Gene. ---- Original message ---- >Date: Thu, 27 Mar 2008 11:53:29 -0400 >From: "Stan Jakuba" <[EMAIL PROTECTED]> >Subject: [USMA:40689] Electricity and Heat in SI >To: "U.S. Metric Association" <[email protected]> >Cc: "SCC14 IEEE" <[EMAIL PROTECTED]> > > There are several people in this group knowledgeable > about energy and power in electricity generation and > consumption. I am attempting to fill the spaces in > the attached table and need help. There are wide > ranging numbers in the literature and on the > Internet. I am looking for "ball park" figures that > are in the middle of those ranges. The > numbers should reflect commercial plants. With the > solar ones, the plants should be in operation for > several seasons to yield the year-averaged, > net output (not name-plate numbers and not > projections no matter how solidly based). > > The performance and cost numbers are commonly shown > in a plethora of units (e.g., in EIA as kWh and Btu, > and worse). The attached table unifies the units on > SI. To help you get the SI values, here are several > conversion factors: > 1 kWh = 3.6 MJ = 3500 Btu > 1 c/kWh = 2.8 $/GJ > 1 billion kWh/y = 1 million MWh/y = 0.0036 EJ/y > = 0.114 GW > 1 quad = 1 EJ > 1 therm = 0.1 GJ > 1 Btu = 1 kJ > 1 acre = 4000 m² > 1 mi² = 2.6 km² > 1 gallon (US, liquid) = 3.8 dm³ > 1 gallon (Imperial) = 4.6 dm³ > 1 barrel (oil only) = 0.159 m³ > 1 ft³ = 0.028 m³ > A small household's el. consumption: 20 GJ/y = 0.6 > kW = 5000 kWh/y > A small house total consumption, moderate climate: > 150 GJ/y = 4.6 kW = 4000 kWh/y = 140 MBtu/y. > For reference, the US total energy consumption is > just over 100 EJ per year and this represents > continuous average power of 3200 GW. Of that, > electricity amounts to 15 EJ, equiv. of 480 GW. > Solar insolation at the surface in the US is 200 > W/m². > > This mailing is not intended to start a discussion > about the pros and cons of energy sources. It is > strictly about unified units and reference numerical > values in them. > Stan J. > > >________________ >Electricity in SI.doc (61k bytes) >________________ >Electricity in SI.pdf (39k bytes)
