Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

selling excess power

selling excess power

selling excess power

I have an idea that could produce 500kw excess power
at times. How large (physicaly) would a generator of
that size be? How much would it cost? Can I use the
generator as a brake by varying the output load?
Would the r.p.m. need to be constant in order to match
phase with the utility? Are there any programs sponsored
by utilities (or anyone else) that would help
technically?, financialy? I think my idea is valid but
I don't have the resources to see it through.

RE: selling excess power

I suggest that you search the web for generator data, there is a lot of information out there.  Also, check your local utility's website or call them for specifics on any non-utility generation programs that they may have, also their policy on power purchase.
Just to give you a frame of reference for visuallizing what's involved, a 500 kW induction generator could be around the size of an office desk and weigh somewhere around 5-6000 lb, depending on the operating voltage.
When you operate in parallel with the utility grid, the speed is set by the grid frequency, the only influence that your generator will have is how much power (real and rective) you generate.
You will also need to consider whether you need a synchronous or induction type generator, which influences the interaction with the grid.

RE: selling excess power

One example of interconnection requirements of an independent power producer and a utility is covered at: http://www.pge.com/customer_services/business/tariffs/doc/ER21.doc The requirements are fairly complex, but it’s done a lot in some areas.  See: http://www.energy.ca.gov/sitingcases/backgrounder.html [Note that 500kW = 0.5MW]
An example of a the process with a US Government facility is at: http://www.wapa.gov/interconn/intsteps.htm

RE: selling excess power

Thanks guys for the info & links, they will keep
me busy for a while!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


White Paper - How ESI is Helping Move New Medical Device Product to Market Quicker & More Cost Effic
Early Supplier Involvement has long been a strategy employed by manufacturers to produce innovative products. Now, it almost seems like a necessity. Because decisions made in the design phase can positively affect product quality and costs, this can help add value to OEM bottom lines. This white paper will discuss many facets of ESI, including why it’s so valuable today, what challenges limit the benefits of ESI, how cost is impacted, and more. Download Now
White Paper - Moving to a Driverless Future
This white paper describes what we see as the best practices to support a sustainable engineering process for autonomous vehicle design. It exposes how to use simulation and testing in common frameworks to enable design exploration, verification and validation for the development of autonomous cars at a system, software and full-vehicle level to drive a mature product development process for automated driving. Download Now
Research Report - How Engineers are Using Remote Access
Remote access enables engineers to work from anywhere provided they have an internet connection. We surveyed our audience of engineers, designers and product managers to learn how they use remote access within their organizations. We wanted to know which industries have adopted remote access, which software they are using, and what features matter most. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close