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Community Owned Independent Power Production: Challenges and Opportunities

By Sarah-Patricia Breen, Memorial University
October 28, 2009   |   7 Comments

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7 Reader Comments
Comment
1 of 7
October 30, 2009
Parabolic Ttrough Tower system Dish stirling
Electrical energy 30?320MW 10?20MW 5?25kW
Operating temperatue??? 390—734 565—1049 750—1382
Annual capacity factor 23?50% 20?77% 25%
Peak Efficiency 20% 23% 30%
Annual net efficiency 11?16% 7?20% 12?25%
Commercialization Allow Demonstration Testing model
Venture of technology Low Medium High
Energy storage Limited Ok Battery
Complementary system Yes Yes Yes
Cost
$/m2 630?275 475?200 3,100?320
$/W 4.0?2.7 4.4?2.5 12.6?1.3
$/Wp 4.0?1.3 2.4?0.9 12.6?1.1
Building cost 3011?2650 dollar/kw
Generating cost 12?8cent/kwh
There are four kinds of solar power technical program of parabolic troughs, dish stirling engines, fresnel reflectors ,tower system in the present solar power market. The solar parabolic troughs power technology has already had 20 year commercialization operation experience and is the most matured technology with the large-scale commercialization promotion; the other three are in the commercialization promotion earlier period or are carrying on the commercialization operation earlier period.
Due to the advantage of fresnel reflectors power tecnhology ,it has obtained rapid development in recent years. Its generating cost compared to parabolic troughs approximately is lower 10%.
The coated steel tube is applied to the compact Linear Fresnel power plant for the receiver and the solar air conditioner.
Our company has scale production capacity for coated steel tube, (maximum absorptance 95%,minimal emissivity 9%,keep stable in 300~350? ) and been installed in Spain and Australia (twenty years of proven reliability).We can also provide the AR-coating glass and the mirrors.
It's very nice to find cooperator and improve the development of the concentrating solar thermal power together.
Website: http://www.himin.com/english/index.html
Email: himinaihua@hotmail.com
Comment
2 of 7
October 30, 2009
The US is allowing both utilities in regulated states and utility affiliates in deregulated states to monopolize the electricity industry. Independent power production of cost-competitive and reliable renewable energies - like small-hydropower, geothermal and biomass cogeneration - are blocked. States are allowing only renewables like unreliable windpower and a little solar. The US is setting up renewable energy to fail, so its energy monopolies can go back to fossil and nuclear fuels.
Comment
3 of 7
October 30, 2009
Some locations will have natural underground water-storage capacity. Heated water can be stored in such places and used efficiently for some processes. See Heat from the Street in the Economist.

Pumping water uphill is also a choice in some places where natural swales and dents occur. Bladders and other kinds of storage are possible. Use HDPE and not PVC, though.

If earth-moving companies are under-utilized in the present economic challenge, ways of making swales are easily researched on the internet.

Bonding is a tough issue. There have been serious problems with contracts with huge financial institutions. If un- and under-employed ratepayers cannot afford the debt service, it's a serious situation.

I'm highly concerned about big interrnational players getting control of property this way.

Some see the term public/private partnership as a contradiction in terms.

It is a risky area. I see it as more of a see-saw kind of thing.

If you can get true peer relationships with each side eager to learn what works, you may get a good balance.

Too much power on one side or the other, and look out.

Looking at better waste-handling is one way for communities to maybe find energy. I recommend looking at some on-line information about the Durham Advanced Wastewater Treatment Facility, a public/private project in Oregon that involves a Canadian company. Reduction in energy use and creation of valuable products out of waste happened. A side effect is water so clean that goldfish turn into a koi in a test tank before water is released.

It is often recommended that poor communities go for-profit, maybe social coop, where it's ok not to make a profit because large revenue-seeking sharks don't expect you to suceed.

The record-keeping for for-profits is often far less onerous.

Alleged non-profits are often pets of the wealthy, so much law and accounting is expected of them. Thanks for this post.
Comment
4 of 7
October 30, 2009
This article is not representative about what is really going on with most renewables, especially in the US. Contrary to the article, biomass and geothermal are also base-load renewables. Biomass doesn't face the same problems faced by hydro which is delayed by environmentalist laws, like fish kills. In the US, biomass is blocked by the utilities. The market for Independent Power Producers may have been opened in Canada, but certainly not in the US: regulated utilities rig bids to their friends and deregulated markets have been rigged with all sorts of advantages for utility affiliates. The utilities are hostile toward the development of all IPPs that are not their buddies, not just community IPPs.
Comment
5 of 7
November 3, 2009
The failure of PURPA is the biggest bottle neck for distributed generation. Until there is policy that supports small generators, we won't have small generators. PURPA doesn't work. Feed in tarriffs might be the answer. Even they won't do the trick if the utilities can figure out another way to stop you.
Comment
6 of 7
November 4, 2009
FIT is only marketable in a small and sophisticated market in the U.S. I've never been to Gainesville, but maybe that's how they are.

It's probably close to impossible to sell FIT's in big cities or on a large-government scale.

Renewable energy payments, REPs, are more marketable, and maybe big utilities wouldn't kick so much if they had to pay out only once per year, which would get the camel's nose under the tent for small-scale producers, especially if installation could be financed with contracts held by local banks that could pass to new owners.

As long as a person is in a house with production, you get to write off loan costs, but initially your pay-back would not be much, if rates float at retail or wholesale peak, say.

Charging more than that probably can't stand up to charges of being regressive for un-REP'd ratepayers, and you can count on monopolies to make that argument, as regressive as their payscales tend to be, compared to the pay of the average ratepayer.

If we could get everybody to look long-term, it would help. Equador, with nature having rights, is leading the way, in my long-term point of view.

Resilient and renewable are words to keep out there.

Alternative and sustainable need to get ditched. They are framing words that end up helping the consolidators.

I guess they love to pay tariffs and taxes in Europe. In the U.S., not so much.

Calling things renewable energy payments makes the marketing point that's it's renewable energy, not alternative energy.
Comment
7 of 7
December 9, 2009
Distributed power not Transmitted power.

We have to stop depending on the Gov't and its agencies to represent our needs in the communities in which we live. They can only represent so much before everything becomes diluted.

We need to depend more on "Grass-Roots" development to support what is needed in these areas - like Distributed Energy Production. The Champions of these grass-roots movements are on the ground, educating themselves and their neighbors on the essences of understanding the new opportunities in sustainable living.

This is no salesperson coming in and telling them what they want to hear (ok there has to be some of that to get all the information). This is not the local Representative or Senator stopping in and shaking hands and explaining the new energy policy for the state (which they don't because they have staffers do it for them). This is the locals realizing they need to make a change.

With localized energy production based on renewable like Wind, PV, Thermal, Micro... communities can benefit from production with lower energy costs and possible profits for overproduction and PPA with the local power company. The grid benefits from lower line loss on transportation.

These are not coal fired plants spewing smoke and polluting the local water sources like early last century - this thing that prompted the large productions plants "not in my back yard" mentality can be changed at lower costs then pumping this archaic grid up with bigger lines through out.

This Micro Grid idea is not new. With little to no upgrade to the local grid, a community can start producing it own power for local use. More and more new subdivision all over the country are already offering solar PV as an option in the purchase price- local distribution. We are seeing small Co-Ops allowing large systems (10 to 50 kw) to be grid-tied. Now Colorado has agreed to let resident and commercial systems enter into a P.P.A. for over over production of installed systems.
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