What is Aggregation: Definition and 12 Discussions

Community Choice Aggregation (CCA), also known as Community Choice Energy, municipal aggregation, governmental aggregation, electricity aggregation, and community aggregation, is an alternative to the investor owned utility energy supply system in which local entities in the United States aggregate the buying power of individual customers within a defined jurisdiction in order to secure alternative energy supply contracts. The CCA chooses the power generation source on behalf of the consumers. By aggregating purchasing power, they are able to create large contracts with generators, something individual buyers may be unable to do. The main goals of CCAs have been to either lower costs for consumers or to allow consumers greater control of their energy mix, mainly by offering "greener" generation portfolios than local utilities. Eight states in the United States have enacted CCA enabling law. They are: Massachusetts, Ohio, California, Illinois, New Jersey, New York, Rhode Island, and Virginia. Collectively, they serve about 5% of Americans in over 1300 municipalities as of 2014.

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  1. S

    A What is the difference between aggregation, nucleation and growth?

    Im bit confused about what is exactly the difference between the terms, which process every term describes ?
  2. S

    A J-aggregation and H-aggregation differences

    Why J-aggregation has red shift and H-aggregation has blue shift what is the physics behind it? And the second question is does J-aggregate can makes with another J-aggregate H-aggregate?? (I'm new in this topic)
  3. S

    A Diffussion-limited aggregation and the mobility of particles

    How a high mobility of particles over surface cause to aggregation, the professor in the class said that "high mobility causes to local equilibration and thus to a compact aggregation".. which I didn't understand..! What does he mean about local equilibration and how all connect to each other?!
  4. S

    Molecule aggregation in groove in Fused silica

    Image (a) is a view from above of a fused silica sample, the groove depth about one micrometer and the width is about 5 micrometer, the image (b) is a side view of the facet, when I cast a solution with molecules the aggregation is more on the grooves area which is logic, but when I shine a...
  5. S

    A Molecules Aggregating on a Surface that includes a Scratch

    View from above of fused silica chip. In the image is fused silica and the black line is burned fused silica caused by laser, when I cast droplet that contains molecules, never mind which kind of aggregation I tried different kinds of molecules, the aggregation is more preferably on the burned...
  6. ohwilleke

    I Anomaly aggregation and confirming old paper validity

    The Particle Data Group keeps a running, subject matter organized summary of the state of the art experimental results for the experimentally measured properties of hadrons and measurements of fundamental physical constants that is updated at least annually. Is there any comparable group that...
  7. S

    Max Size of Object Formed by Aggregation Before Self-Gravity

    Homework Statement We know the terrestrial planets formed by aggregation of debris from the solar nebula. We want to calculate the maximum size of object that can form by aggregation before self-gravity causes it to pull itself into a round shape. Our analysis is assisted by considering...
  8. A

    Markov Chain aggregation method

    I am using a Markov Chain to get the 10 best search results from the union of 3 different search engines. The top 10 results are taken from each engine to form a set of 30 results. The chain starts at State x, a uniform distribution of set S = {1,2,3,...30}. If the current state is page i...
  9. G

    Aggregation Functions: Easy to Characterise?

    Is the set of aggregation functions easy to characterise? I mean functions like addition, multiplication, maximum, minimum, count... So basically everything that's commutative and associative: f(x,y)=f(y,x) f(f(x,y),z)=f(x,f(y,z)) What are other classes of such functions? I can't...
  10. L

    Diffusion Limited Aggregation Matlab Problem

    Homework Statement Hello, I have this project due for next Friday. I need help. Its on diffusion limited aggregation. A topic which is unfamiliar to me. I know exactly how to do the problem, but I don't know how to code it correctly. Basically I allow a seed particle to be in a location in a...
  11. L

    Diffusion Limited Aggregation

    1. Hello, I got this project to show DLA on matlab. I have to write up the pseudocode, which is basically just a code explaining the bare bones of the solution. It contains no coding. I'm just wondering if I have enough information or if I'm running low. Its the first time I heard of DLA so I'm...
  12. L

    MATLAB Diffusion Limited Aggregation Matlab

    Hello, I got this project to show DLA on matlab. I have to write up the pseudocode, which is basically just a code explaining the bare bones of the solution. It contains no coding. I'm just wondering if I have enough information or if I'm running low. Its the first time I heard of DLA so I'm not...
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