Small & Micro Hydropower Community Profile Update 5/6/2009

May 07
2009

The following two charts show the “Small & Micro Hydropower Newsletter” Community as of May 6 2009 and March 17 2009. Our Small & Micro Hydropower Demographic population has changed only slightly since we started collecting data. Note the charts are normalized to the total responding population which represents about 50% of our overall membership. I think you can see we are still a diverse Hydropower group that share a common interest in Small & Micro Hydropower generating systems.

Notice that Small & Micro Hydro Interest have swapped places from what we showed in our original Hydropower Community update newsletter.  Small Hydro vs. Micro Hydro Interest percentages are within a few points of each other and I suspect there is no significant difference in the voting here. It sounds like we are right on with the Newsletter target.  Thanks to those who filled out the survey.  You can see our original demographic results by visiting: Original Small & Micro Hydro Community Survey.

SmallHydro.com Hydropower Community Stats - May 6 2009

SmallHydro.com Hydropower Community Stats - May 6 2009

The following data shows the Small & Micro Hydroelectric Community as of a little over a month ago. Only subtle changes within about 1-3% experimental error.

Some of you have correctly mentioned that there are significant differences in Small & Micro Hydropower systems with regard to physical plant size and capital $ investments, ROI, regulations, etc.

While this general observation is true the actual fluid mechanics and electrical physics involved are mostly the same, so we will continue to address both populations here and in the newsletter. As we encounter major differences we will try and point them out so you can be aware. If you see Small or Micro Hydro issues that I forgot to point out please share them with your comments on that SmallHydro.com Blog post. The other Small Hydro Community plots are over on the www.DoradoVista.com site.

To update your Small & Micro Hydropower Survey see the following link: Update My Hydropower Interest Survey Instructions.

SmallHydro.com Hydropower Community Stats - March 17 2009

SmallHydro.com Hydropower Community Stats - March 17 2009

Run of River Small & Micro Hydropower Issues

Apr 28
2009

Lou,

Q: Lou asked me to visit a few river saving Web sites.  Interesting stuff.  After looking over the subject covered and the evidence, as it was presented, I put together the following response. [In fairness to Lou I have edited the post a bit]

A: You really should investigate in-stream hydro or run-of-river hydroelectric designs further.  It’s a good design that incorporates river eco-balance too.  Europeans are very much in favor of this technology.  There is a 100 year history of Hydropower with both successes and failures to learn from.

By pressing the ‘not in my back yard’ case for Small & Micro hydro we easily create a no win ecologic and bad economic ROI situation. There is much to be lost ecologically by considering rivers as strictly off limits. Instead we should press for making responsible use economical and requiring governments to assist in the process instead of planting a multitude of conflicting regulations in the path to success.

The reality is that all the lost hydropower will be replaced with nuclear power, oil, gas and coal in nations that have that capacity.  Those aren’t a good eco-energy-option in the long 300+ year term.  These river use or restriction choices have potentially detrimental outcomes that go way beyond a simple local model to predict.  These impacts affect economies and food supplies that must in turn depend on low cost local energy.

Unfortunately in the rush to paint Dams and Hydro as evil we left out Instream run-of-river Hydro systems which provide a much better eco balance than any other renewable energy source. Including solar which has large power fluctuations, chemicals & energy to produce, also takes huge land areas,  wind which has large power fluctuations, bird & bat strikes, causes new vibrations and flashing blade visual psychological impacts on people living nearby,  etc.

There’s no such thing as a free lunch, nor a free energy. Every act has consequences.

Sincerely,
Jess

Hydro Prospector Jess

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