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Making Green Power Greener

7.1.09   Mark Rudd, Founder, Rudd Asset Management

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    Recently there have been a number of excellent articles written on using biomass for the generation of green electric power. Today there are a number of alternatives to wind and solar available. In many cases, the additional benefits of biomass fuels can be much more valuable to an electric utility and independent system operator. This article explores some additional benefits that can make your project a winner.

    Regardless of what green power source is used, it is only useful to the electric industry when it replaces traditional electric generation without sacrificing the system's reliability and flexibility. A good electrical generation project must start by looking at the desired end product. Once that is known, we can look for new innovative green sources. But, we cannot lose sight of the goal, to provide the nation with a new, greener source of electrical energy.

    Today's electric grid is comprised of various key resources. Base load is often best provided by nuclear, hydro, or high-efficiency coal plants. These plants provide the bulk of the electric power we use every day. But, the system would not last long if we stopped there.

    Electric consumption patterns vary. Each area has its own distinct load pattern. They all vary. Some vary much more than others. So, each system is unique.

    Each electrical system also needs an intermediate generation source. This source is cycled daily or in some other pattern to add load when needed and to reduce generation when demand decreases.

    Finally, there are the peaking load needs. From hour to hour, sometimes minute to minute, the load can change. Peaking units need to be able to satisfy that variability. Whether supplied by natural gas or oil, generation units are needed to supply that last remaining megawatt of power when needed.

    Value of a green power generation project can be enhanced by keeping this basic system outline in mind. Often, it does little good to generate additional power to the electric grid in the middle of the night and early morning hours or on weekends. Until we develop ways to store electrical energy on the grid economically, we need to produce power when needed.

    Biomass generation plants can meet the electrical system needs well. Many plant designs can be fully dispatchable. Unlike wind and solar, these units can be nearly as responsive to load swings as natural gas peaking units. Reciprocating engine designs can come on line and be at full load in minutes. The electrical system needs must be met and successful plants will be designed to meet them.

    Review of a typical Independent System Operator (ISO) web site defines ancillary services as: ancillary services support the reliable operation of the transmission system as it moves electricity from generating sources to retail customers. The ability to provide extra value to the ISO can mean more revenue for the project.

    This ISO defines two valuable ancillary services as Synchronized Reserve and Regulation. It defines them as:

    • Synchronized Reserve supplies electricity if the grid has an unexpected need for more power on short notice.
    • Regulation is a service that corrects for short-term changes in electricity use that might affect the stability of the power system.
    Building a project with reciprocating engines may require providing an additional engine or two to make sure you can generate contract committed power and allow for maintenance or repair. These "extra" engines might be able to qualify for "Synchronized Reserve" at times. Similarly, the ability to do load follow could also allow a project to collect additional revenue for "Regulation."

    These are additional revenue streams that wind and solar may not be able to provide. Biomass plants can, and should. If biomass is going to grow in the electric power industry, it needs to meet the market need.

    But, meeting market needs does not just happen. It takes a carefully developed business plan. A project's value does not stop with its technical engineering. It can be greatly enhanced with "financial engineering."

    An additional advantage that biomass plants have is their ability to go where the need for power is the highest. Perhaps projects can learn from that folklore celebrity, the infamous Willie Sutton, and his purported famous quote.

    "As Willie Sutton the bank robber said when asked why he robbed banks, 'because that's where the money is'."

    Though biomass plants need not resort to crime, plant developers can take a page out of "Slick" Willie's book. The ability to develop biomass plants that use locally indigenous fuels gives them the ability to go to where the need for green power is highest.

    The success of a green power project can be greatly improved by a business plan that builds in layers of extra value. The ability to design a plant using proven electric generation designs and equipment, greatly improves your odds for success. Biomass development is sometimes cutting edge technology. But, it does not all have to be.

    Standardized and proven equipment can reduce performance risk, reduce spare parts investment, improve operator and maintenance familiarization, etc. In short, a good green power plant can apply some of the same strategies that made Southwest Airlines such a high flyer (pun intended).

    In conclusion, profits are not made by just choosing to generate green. Like any other electric power plant, green power projects needs to identify what the product is going to be, what size, where, when, and how. Then, you work backwards to see what your fuel options are.

    Today, there are amazing opportunities in the green power market. The demand is growing quickly. Learn to make your project one of the best. Make your green project even greener!
     

    Readers Comments

    Date Comment
    Richard Vesel
    7.7.09     		Good article, but a bit short of specifics. What kind of configuration might be used in some specific situations? Using methane from a landfill to run peaking facilites of the type you describe? What are the ACTUAL economics of such projects ... do some numbers for us...

    RWV

    KENNY MAGERS
    7.7.09     		Good artical, Like Richard (What kind of Configuration might be used in some situations and locations ? It's called RENEWABLE (THERMAL)=WIND POWER THE ENERGY POWER SOURCE ! tHIS COMBINATIONS OF THE BEST OF WIND, SOLAR THERMALS, TORNADO VORTEX CHAMBER, ATMOSPHIRIC CONVECTION ENGINE IN 1 STRUCTURE for a total of 8 naturals and 6 man made technologies into 1 structure that has 5 sizes structures. This is more cost effective for morwe local comtrol and where to build it closer to where needed. Thus lessening the cost of long transmittion lines. The in the box thinking goe out the door and use the mind. This system does not need the wind, solar after strat up. NO battery storage cost! , It's on demand power from nature. Get the facts on informational disc kennynabb6@win.net Energy researcher inventor of 40 years. AIRKEN Entrepreneur

    bill payne
    7.7.09     		We're a bit suspicous about large scale solar electric power.

    So we've browsing.

    While researching this article I discovered a book titled, The Solar Fraud: Why Solar Energy Won't Run the World, by Howard C. Hayden, Professor Emeritus of Physics, retired from the University of Connecticut. Using mathematics, physics, and economics, he makes a compelling argument against most renwables. I myself have a degree in math and a background in physics and economics, and I found his points convincing.

    http://www.backwoodshome.com/articles2/silveira118.html

    But we're simply not going to see solar, in most of its manifestations, as an answer to our nation's energy needs in the foreseeable future, no matter how much money we throw at it. If they weren't subsidized, almost all renewable energy sources, except for those used in niche applications, would go away.

    Fred Linn
    7.8.09     		Bill---before your decide that solar will not work, you need to know some background on the economy model you are trying to apply it to.

    There is no one answer to where we will turn to fulfill our needs.

    The linear economic model that coal and petroleum were applied is not sustainable---and we are already passing the the ability of the earth to sustain it.

    The more pertinent question, is how can we sustain what we need to do to maintain ourselves without damaging the biosphere that sustains us. That is going to require a completely new way of thinking and a completely new set of values. It will not be, just plug solar, wind, geothermal or something else into the slot that coal now occupies. Do that, and the system still will collapse---maybe not as quickly as it is now, but it WILL collapse.

    Here is a short video that will outline what we are up against:

    http://www.storyofstuff.com/

    Len Gould
    7.13.09     		Are Humans smarter than Yeast? (Continues to consume available resources and expand its population until its waste products make its environment poisonous to yeast) Probably not.

    Len Gould
    7.15.09     		Bill "But we're simply not going to see solar, in most of its manifestations, as an answer to our nation's energy needs in the foreseeable future, no matter how much money we throw at it." -- That's a very broad statement. Just this morning the following article was brought to my attention, about another technical advance in research to the "Optical Rectenna" solar cell, which recieves sunlight as electromagnetic waves onto antennas then rectifies the AC into useable DC. About 92% theoreical efficiency, 80% already demonstrated for far IR. Advances in miniturization are the key, which is what this article is about. INL people have demonstrated printing the antennas (IR scale) and connecting wires with a stamping device onto sheet plastic, which can be seen being held up by one of the researchers. I'd guess cmmercal is less than ten yeas away, and it will completely upset everything you now think you know about energy systems.

    Harvesting the sun's energy with antennas - INL

    James Carson
    7.21.09     		Len, pssstttt.... Malthus was WRONG.

    Don Hirschberg
    7.21.09     		James, just how has Malthus been wrong?



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