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Electricity Market tutorial

Build and solve a nodal electricity market on your iPhone or iPad

Investigate
electricity markets
by building your own


 Full Document
The full tutorial document is quite large, you may prefer to access it section by section here

The tutorial explains nodal electricity markets and the simplex algorithm  via electricity market models built and solved on your iPad or iPhone using the free* Simplex Nodal tutorial app

Download on the app store  Download on the app store  About Simplex Nodal

*The free "tutorial" version of the app has all the features of the paid version, but "only" 50 solves - more than enough to complete the tutorial

Demonstrate and explain the following: Locational Marginal Pricing, the simplex algorithm, line losses, risk and reserves, ramp-rates, the spring-washer effect, binding lines, congestion charges, transmission rentals, interconnected islands, HVDC risk, HVDC reserve sharing

See screenshots below, and there is a video here

Locational Marginal Pricing (LMP) Branch Losses
LMP example
Losses data
Spring washer effect Results
Spring washer effect
Results display
Solver Settings HVDC reserve sharing and risk setting
Solve Settings HVDC reserve share and risk
Reserve and Ramp Rate example Reserves Data Display
Reserves and Ramp Rate Reserve data entry
Branch Data Display Variables and Constraints
Branch Data Display Variables and Constraints
Iterations detail Objective calculation
Iterations Objective calculation
Import Export
Export results CSV, simplex tableaux, model CSV, model as GAMS file. Import model CSV from iTunes or email
Small model for explaining simplex,
see exported tableaux for this result
in the next screenshot
Export
Small model

Export tableaux as CSV to explain the simplex algorithm:
Tableaux example

Includes sample model of actual network.
iPad view of sample model:

Hawkes Bay model on iPad

iPad and iPhone functionality is the same, except that on an iPad
you can view/edit a large model such as the one shown above
without the need to zoom and scroll

iPhone view of large model, zoomed out ...zoomed in (use scroll to access entirety)
Model of actual system
Zoom in to large model
Iterations Chart Iteration Details
Iterations Chart
Iterations Detail

Result of offline GAMS solve using Reserve and Ramp example (see above) exported as GAMS model

GAMS result


The Harvard Electricity Policy Group included a link to this website under Recent Postings of articles of interest, see www.ksg.harvard.edu/hepg/


Locational Marginal Pricing (LMP)
LMP Model

Branch Losses
Branch Losses

Spring washer effect
Spring washer effect

Results display
Results display

Solve Settings
Solve Settings

HVDC reserve sharing and risk setting
Solve Settings

Reserve and Ramp Rates example
Reserve and Ramp Rates

Reserves data
Reserve and Ramp Rates

Variables and Constraints
Variables and Constraints

Iterations
Iterations

Import Export
Export CSV: results, simplex tableaux, model. Also export model as GAMS file. Import model CSV from iTunes or email
Export

Large model on iPhone, zoomed out
(iPad will show full screen, full size)
Export

Large model on iPhone, zoomed in
Export


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