--- title: "Simplex Nodal - Reviews, Revenue and Downloads in New Zealand | Apple App Store" description: "In conjunction with the tutorial document, available at www.simplexnodal.com, use the app to learn about electricity markets by graphically building and solving your own electricity market models. The" --- # Simplex Nodal — New Zealand ![Simplex Nodal App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/b1/9a/f1/b19af15b-d2ec-37c7-3ef1-f726097352d7/AppIcon-1x_U007emarketing-0-10-0-85-220.png/434x0w.png) **Developer:** [Simplex Nodal](https://apptail.io/developer/simplex-nodal-Nuwd) **Category:** Education **Rating:** 5.0/5 (1 ratings) **Price:** Free **Bundle ID:** com.simplexnodal.SimplexNodal **Store:** Apple App Store **Country:** New Zealand **Version:** 2.3 (released 2020-05-22) **Original Release:** 2015-06-17 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/nz/app/app/id995736553) **AppTail Page:** [https://apptail.io/app/simplex-nodal-enpf/new-zealand](https://apptail.io/app/simplex-nodal-enpf/new-zealand) ## Simplex Nodal Description In conjunction with the tutorial document, available at www.simplexnodal.com, use the app to learn about electricity markets by graphically building and solving your own electricity market models. The tutorial also describes the simplex algorithm that solves the model and the app lets you see the internal workings of the algorithm. Demonstrates nodal electricity markets features such as: locational marginal pricing, line losses, parallel flows, binding constraints, price separation, the spring washer effect, negative prices, risk and reserves, ramp-rates, congestion charges, transmission rentals, multiple electrical islands, HVDC branches, HVDC risk, HVDC risk subtractor, HVDC reserve sharing, and more. See www.simplexnodal.com for more screenshots and the tutorial document. Highlights: • The tutorial explains nodal electricity markets and the simplex algorithm via worked examples using the app • Start with small models to learn the basic concepts of the electricity market model the simplex algorithm • Learn how to explain prices by relaxing constraints to determine shadow prices • Enable/disable electricity market features to focus on individual effects, e.g., risk and reserve is easier to explain with line losses disabled • View full details of the simplex modelling including basic and non-basic variables, constraints, shadow prices, and details of the simplex iterations • Learn how the simplex algorithm works by viewing the step by step simplex operations that solve the electricity market model. View iteration details in the app and/or export the simplex tableaux as a csv file • The app implements its own simplex algorithm but you can also export the model in GAMS format to solve externally if you have access to the GAMS solver • Includes sample models that represent sections of an actual electricity market iPhone and iPad functionality is the same. Zoom and scroll allow the iPhone to access iPad sized models. ## Simplex Nodal Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/9c/6f/02/9c6f022a-7d40-7bff-8618-6a9aeafae840/mzl.makfljga.png/640x960.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/bb/99/e6/bb99e6bb-b208-2fb5-6496-625ab5cf6b12/mzl.navbrvex.png/640x960.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/d9/02/b7/d902b712-f317-c369-7156-bc51f140e568/mzl.ssnaosnb.png/640x960.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/46/b9/08/46b908c0-b942-ccdc-ccea-0c4350b5e9e9/mzl.lsgkajei.png/640x960.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/6b/77/47/6b7747e9-d695-88b8-b4c9-754d4595a35e/mzl.fsrihmfg.png/640x960.png) ## Simplex Nodal Rating Breakdown in New Zealand - 5 stars: 1 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Simplex Nodal Reviews in New Zealand ### ***** "Intuitive interface with great depth and portability" I've used the app to quickly put together ad hoc models of the NZ electricity transmission network. Using the Simplex Nodal example models it's interesting to play with the boundary between the financial market and electrical security to see what really determined prices. It's useful for my Operations Research uni studies to have a quick reference to remind me of the concepts. I wonder how it would be useful for electrical engineers and sparkys? The results and model can be emailed out. I've taken them into work and run them through the commercial solvers and the results line up. Reading through the online user guide you can see that it covers all the significant inputs for a working transmission system like optimising energy and reserves and let's you customise even how the electrical losses are calculated. -- curiousglvf, 2015-06-26 [View all Simplex Nodal reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to Simplex Nodal - [FrogID](https://apptail.io/app/frogid-CFk/new-zealand) - [Trek Central](https://apptail.io/app/trek-central-COB/new-zealand) - [GlobeViewer](https://apptail.io/app/globeviewer-paK/new-zealand) - [Paraphrase: Plagiarism Checker](https://apptail.io/app/paraphrase-plagiarism-checker-Gyxb/new-zealand) - [HSK Hero - Chinese Characters](https://apptail.io/app/hsk-hero-chinese-characters-WpMb/new-zealand) - [Ginkgo: Apprendre le Chinois](https://apptail.io/app/ginkgo-apprendre-le-chinois-yead/new-zealand) - [Vivi User App](https://apptail.io/app/vivi-user-app-aqbf/new-zealand) - 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