What is the breakdown of electric power sources in Salem, MA?

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Homework Help Overview

The discussion revolves around determining the breakdown of electric power sources in Salem, MA, specifically focusing on contributions from coal, natural gas, biomass, nuclear, wind, and hydroelectric power. Participants are seeking reliable sources of information for a report related to a thermodynamics design problem.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss various methods to find reliable data, including reviewing company filings like the 10-K report and searching for specific keywords related to power sources. Some express frustration over the difficulty of finding explicit figures on power contributions from different sources.

Discussion Status

Several participants have shared suggestions for finding information, including looking at publicly traded company reports and exploring national contributions to the grid. There is acknowledgment of the complexity of the power supply situation, with some participants considering broader regional data instead of focusing solely on Salem.

Contextual Notes

Some participants mention the challenges posed by the deregulation of the generation market in New England, which complicates the search for specific generation statistics from local utilities. There is also a recognition that the local power supply may be influenced by multiple sources beyond the immediate area.

Saladsamurai
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Homework Statement


So I am supposed to write up a report as part of one of those "design" problems in a Thermo text.

I am supposed to find determine the respective contributions to the electric power provided to customers by the electric utility serving my area (Salem,Ma) attributable to coal, natural gas, biomass, nuclear, wind, hydro, etc...

I am trying to google up this info, but the search criteria I am using is too vague.

Any suggestions as to how to find a reliable source on this one?

Thanks for any ideas.
 
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Saladsamurai said:

Homework Statement


So I am supposed to write up a report as part of one of those "design" problems in a Thermo text.

I am supposed to find determine the respective contributions to the electric power provided to customers by the electric utility serving my area (Salem,Ma) attributable to coal, natural gas, biomass, nuclear, wind, hydro, etc...

I am trying to google up this info, but the search criteria I am using is too vague.

Any suggestions as to how to find a reliable source on this one?

Thanks for any ideas.

Your electric supplier is likely a publicly traded company. Go look at the 10-K for last year and look for their management discussion of the business, or other distinctions they might make for expenses due to various power sources.

http://www.sec.gov/edgar/searchedgar/companysearch.html
 
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Thanks LP. I will give that a shot. Any other suggestions?
 
Saladsamurai said:
Thanks LP. I will give that a shot. Any other suggestions?

No more than picking up relevant terms from the filing and googling those. Sometimes phrasing is difficult to know how to limit the range of results and get to what you might need. Using the right jargon helps.
 
Saladsamurai said:
Thanks LP. I will give that a shot. Any other suggestions?
The Salem Harbor MA generating station is owned by Dominion Generation. They burn low emmision coal and some oil. Doesn't mean though that all your power comes from the Salem Plant (especially when its shut down!). Could sometimes come from a nuke plant up north, depending on load flows and energy dispatch. Or a trash burning plant, etc. Check out the Dominion website.
 
LowlyPion said:
Your electric supplier is likely a publicly traded company. Go look at the 10-K for last year and look for their management discussion of the business, or other distinctions they might make for expenses due to various power sources.

http://www.sec.gov/edgar/searchedgar/companysearch.html

I wish I could get this to work, but when I put in Dominion Virginia Power I get nothing. When I put in just Dominion, I get too many results.

You would think that finding out from where and what percent electricity comes from would be fairly easy. :/
 
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It would appear that my city gets its power only from coal burning plant, which is reasonable since it is small and the power plant is located right here in the city.

I don't know how to make the report any longer if we only get our power from one source:/
 
Saladsamurai said:
It would appear that my city gets its power only from coal burning plant, which is reasonable since it is small and the power plant is located right here in the city.

I don't know how to make the report any longer if we only get our power from one source:/

If they are a net supplier to the grid, above what they use to supply your community, then that's it. Otherwise, you could flesh it out by quoting national contributions to the grid from all sources to identify percentages of other types of generation from which your utility draws during peak demand periods.
 
Let's say for a moment that I live in Boston instead. I believe that NSTAR is a power company that supplies to Boston.

I have been up and down their website and am trying to find out what percentages of their produced power comes from hydro, wind, solar, etc... and cannot find explicit figures.

What kind of keywords should I be searching? Things like percent power from solar...
are to no avail. I figure Boston should be easier.

I am using that site you gave me LP, but I have no idea what I am looking at!
 
  • #10
Forget it. I am not doing this. This is a ridiculous thing to attempt only given two days to do it.
 
  • #11
Saladsamurai said:
Forget it. I am not doing this. This is a ridiculous thing to attempt only given two days to do it.
Don't give up so easy! New England utilities sold out all their generating plants over 10 years ago due to deregulation of the generation market. You won't find any generation stats from NSTAR, because they sold out their plants to some one else (I don't know to whom). New England Power sold to Pacific Power, who later sold to Dominion Generation. LowlyPion's last post was a good one. Probably the bulk of your power in the Salem area comes from the Salem plant, which has 4 units, 3 of which burn coal or oil, and the 4th which burns oil only. You can bet with oil prices these days that the 3 units that can burn either coal or oil are burning coal, and that 4th oil fired unit is being used sparingly at peak periods only. So the bulk of your power probably comes mostly from coal, and the rest of the Salem power gets fed into the complex Grid network. But if you lived in between power generating stations, your power would come from the New England fuel mix of multiple fuel sources (natural gas and coal probably dominating), as well as sources from neighbors to the north, west, and south (Canada Hydropower and NY). Just like a water system, you might have red water flowing into a central distribution station from one end, and yellow water feeding in from another end, and what you get is orange water being distributed to your home (a mix of the sources). You might want to do a paper on the New England or Massachusetts region, instead of Salem, and google on "New England Generation Fuel Mix".
 
  • #12
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