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GENESYS – GENeration Evaluation SYStem Model | Northwest Power and Conservation Council Header Menu Contact Search About Integrating energy and the environment in the Columbia River Basin About the Council Mission and Strategy Members and Staff Bylaws Policies Careers / RFPs News See what the Council is up to. Read the latest news Read All News Press Resources Newsletters International Columbia River Explore News by Topic Fish and Wildlife Planning Salmon and Steelhead Wildlife Energy Planning Energy Efficiency Demand Response Fish and Wildlife The Council works to protect and enhance fish and wildlife in the Columbia River Basin. Its Fish & Wildlife Program guides project funding by the Bonneville Power Administration. Fish & Wildlife overview The Fish and Wildlife Program Fish and Wildlife Program 2018/19 Amendment Process 2014 Columbia River Basin Fish and Wildlife Program Subbasin Plans Project Reviews and Recommendations Independent Review Groups Independent Economic Analysis Board (IEAB) Independent Scientific Advisory Board (ISAB) Independent Scientific Review Panel (ISRP) Forums and Workgroups Asset Management Subcommittee Ocean and Plume Science and Management Forum Regional Coordination Science and Policy Exchange Toxics Workgroup Topics Adaptive Management Anadromous Fish Mitigation Blocked Areas High-level Indicators Invasive and Non-Native Species Predation Protected Areas Research Plan Resource Tools and Maps Sea Lions Sturgeon The Pike Problem Energy The Council develops a plan, updated every five years, to ensure the region’s power supply and acquire cost-effective energy efficiency. Energy overview THE NORTHWEST POWER PLAN The 2021 Northwest Power Plan The Seventh Power Plan Planning Process and Past Power Plans TECHNICAL TOOLS AND MODELS Regional Portfolio Model Generation Evaluation System Model (GENESYS) Energy Advisory Committees Conservation Resources Advisory Committee Demand Forecast Advisory Committee Demand Response Advisory Committee Generating Resources Advisory Committee Natural Gas Advisory Committee Resource Adequacy Advisory Committee System Analysis Advisory Committee Regional Technical Forum RTF Policy Advisory Committee System Integration Forum Resource Strategies Advisory Committee (Not Active) Energy Topics Energy Efficiency Demand Response Power Supply Resource Adequacy Energy Storage Hydropower Energy Forums and Workgroups Pacific NW Demand Response Project Northwest Wind Integration Forum (Archive) Meetings See next Council meeting August 13 - 14, 2019 in Portland › See all meetings › Recent and Upcoming MeetingsSwipe left or rightMay 2019Thu16 9:30 am—11:30 am Demand Forecast Adv. Committee Webinar: Climate Change Discussion May 2019Wed22 9:30 am—3:00 pm Fish and Wildlife Committee Meeting May 2019Wed29 9:30 am—12:00 pm Fish and Wildlife Committee Meeting May 2019Fri31 9:30 am—2:30 pm RTF Policy Advisory Committee Jun 2019Mon03 10:00 am—3:00 pm Natural Gas Advisory Committee Jun 2019Tue04 9:30 am—3:45 pm Demand Response Advisory Committee Jun 2019Wed05 9:00 am—3:00 pm Pacific NW Demand Response Project Meeting Jun 2019TueWed11 - 12 Council Meeting Jun 2019Tue18 9:00 am—11:00 am Hatchery Workgroup Jun 2019Mon24 9:00 am—12:00 pm Council Work Session for Fish and Wildlife Program Amendments Jun 2019Thu27 10:30 am—12:00 pm Asset Management Subcommittee Jul 2019TueWed16 - 17 Council Meeting Jul 2019Thu25 9:30 am—3:30 pm Conservation Resources Adv. Committee - 2021 Power Plan Aug 2019Mon12 1:00 pm—5:00 pm Regional Coordination Forum Aug 2019TueWed13 - 14 Council Meeting Aug 2019Wed21 9:30 am—3:45 pm Demand Response Advisory Committee Sep 2019Wed11 9:00 am—3:00 pm RTF Policy Advisory Committee Meeting Sep 2019TueWed17 - 18 Council Meeting Oct 2019TueWed15 - 16 Council Meeting Oct 2019Thu24 9:30 am—3:30 pm Conservation Resources Advisory Committee Oct 2019Wed30 9:30 am—3:45 pm Demand Response Advisory Committee Nov 2019TueWed12 - 13 Council Meeting Dec 2019Fri06 9:00 am—3:00 pm RTF Policy and Advisory Committee Meeting Dec 2019TueWed10 - 11 Council Meeting View Council Meetings View all Meetings View all council meetings View full calendar Reports and Documents Browse reports and documents relevant to the Council's work on fish and wildlife and energy planning, as well as administrative reports. Browse reports Reports by Topic Power Plan Fish and Wildlife Program Subbasin Plans Financial Reports Independent Scientific Advisory Board Independent Scientific Review Panel Independent Economic Analysis Board Columbia River History Project CloseGENESYS – GENeration Evaluation SYStem Model A computer model used to simulate the operation of the Pacific Northwest power system ShareWhat is GENESYS?

The GENESYS model was specifically developed to simulate the operation of the regional power system in order to assess the adequacy of the power supply.  Besides being used annually to determine if the regional supply is adequate, it also calculates the Adequacy Reserve Margin and the Associated System Capacity Contribution for new resources, which are  inputs to the Council’s  Regional Portfolio Model  (RPM) and are essential to ensuring that resource strategies in the Council’s power plan will provide adequate future power supplies.

Additionally, GENESYS is the primary model used to assess the impacts and costs of non-power related constraints placed on the operation of hydroelectric facilities. The majority of these constraints are intended to protect, mitigate and enhance fish and wildlife populations that could be threatened by the hydroelectric system. This type of analysis is critical toward the development of the Council’s Fish and Wildlife Program and has also proven to be very valuable in assessing the impacts of biological opinion directives related to the operation of the hydroelectric system.

GENESYS is also used extensively for climate change studies, for short-term extreme weather studies (e.g. very dry or very wet years) and to assess resource cost-effectiveness.

Further Reading : " Background on GENESYS Model" Presentation Given to Power Committee, September 13, 2016

GENESYS Redevelopment Project (2016-2018)

Information on the Project:

The Seventh Power Plan identified the redevelopment of the GENESYS model as part of two Council action items (ANLYS-22 and ANLYS-23 - see below). The redevelopment of GENESYS is a collaborative effort between the Council, the Bonneville Power Administration, regional utilities and other interested parties.

Redevelopment Stakeholder Meetings:  On the page for each meeting are links to watch a video of the session, as well as presentation slides and other material for review.

July 26, 2018

July 26, 2018 : Demonstration of Redeveloped GENESYS and discussion of methodology

August 26, 2016

August 26, 2016 Project Approach, Draft Requirement Specifications

March 17, 2016:

March 17, 2016:   Discussion of Existing Functionality and Strawman Proposals 

Key Improvements Proposed:

Time-dependent nature of the hourly hydro capability – model cascading of multiple dams as part of the system dispatch (i.e. simulate plant-specific hourly dispatch as opposed to aggregate hourly hydro dispatch)Interaction between assignment of reserves and system capacity – incorporate reserves into an optimized dispatchTrade-off between decisions for economics and adequacy – improved market representationRepresentation of limitations on operators in dispatching the system – add fuel accounting and forecast error

High Level Project Schedule:

Spring/Summer/Fall 2016 - Develop redevelopment requirementsWinter 2016/2017 – Finalize plan for redevelopmentWinter/Spring 2017 - Issue RFP and select vendorSpring/Summer 2017 - Finish GENESYS specifications and algorithms and begin code work and testing cycles working with vendorFall 2017 through Fall 2018 - Vendor and Council Complete Redevelopment

Vendor selected by the council: PSR , Inc 


DRAFT GENESYS Redevelopment Requirement Specifications (.pdf) (October 2016)GENESYS Current Functionality Documentation (.pdf) (October 2016)


Redevelopment Request for Proposals

Redevelopment Request for Proposals  - Proposals were due by 1/27/2017 

Seventh Power Plan

Seventh Power Plan  Action Plan Items Driving Redevelopment

ANLYS-22 - GENESYS Model Redevelopment

"The GENESYS model has been used extensively by the Council, Bonneville and others to assess resource adequacy. It contains, as one of its modules, Bonneville’s hydro regulation model (HYDROSIM). GENESYS has also been used to assess costs and impacts of alternative hydroelectric system operations (e.g. for fish and wildlife protection). It can be used to assess the effective load carrying capability of resources (e.g. wind and solar) and it can provide estimates of the impacts of potential climate change scenarios. The model, however, has components and file structures that are decades old. Because of the multiple uses of GENESYS and because it is a critical part of the Council’s process to develop the power plan, it should be redeveloped to bring the software code up to current standards, to improve its data management and to add an intuitive graphical user interface (GUI). The use of an outside contractor is likely the best course of action but options will be reviewed by the Council, Bonneville and the System Analysis and Resource Adequacy Advisory Committees. Recommendations will be made to the Council to decide on an appropriate approach given the funding available. This redevelopment should be completed in time for the next power plan"

ANLYS-23 - Enhance the GENESYS model to improve the simulation of hourly hydroelectric system operations

"Enhance the GENESYS model to improve the simulation of hourly hydroelectric system operations. [Council, Resource Adequacy Advisory Committee, Bonneville, Pacific Northwest Utilities Conference Committee] The Council’s GENESYS model simulates the operation of the hydroelectric system plant-by-plant for monthly time steps. For hourly time steps, however, it simulates hydroelectric dispatch in aggregate. To do that, an approximation method is used to assess the aggregate hydroelectric system’s peaking capability. That method should be reviewed and enhanced to better simulate the hourly operation of the hydroelectric system. As a first step, the Resource Adequacy Advisory Committee should review real-time operations. In order to improve the Chapter 4: Action Plan nwcouncil.org/7thplan 4-28 simulation, it may be necessary to break up the aggregate hydroelectric system used for hourly simulations into two or three parts, reflecting the different conditions and operations on the Snake River and on the upper and lower Columbia River dams. This work may also require the use of an outside contractor. Any changes in the GENESYS model should be complete in time for the next power plan."

History of GENESYS

Utility planners have historically used a simple comparison between available resources and expected loads to determine whether the power supply has sufficient generating capability to provide adequate service to customers. This deterministic measure, commonly referred to as the load/resource balance, is still being reported in BPA’s White Book and PNUCC’s Northwest Regional Forecast reports. Since about 1999, however, it was becoming more apparent to planners that a better measure was needed. It was in that year that the Council, with help from other regional entities, developed the GENESYS model to provide a better estimate of the power supply’s adequacy.

GENESYS determines the likelihood that a future year’s power supply will be inadequate by simulating the operation of generating resources for that year thousands of times, each time varying the conditions under which that supply operates. The likelihood of experiencing a shortfall anytime during the year is referred to as the loss of load probability (LOLP) and the Council has set the maximum allowed value for the LOLP at 5 percent. In other words, as long as the LOLP remains at or below 5 percent, the power supply is deemed adequate.



ResourcesResource Adequacy Advisory Committee System Analysis Advisory Committee  Presentation Summarizing Draft Redevelopment Approach (August 26, 2016)DRAFT GENESYS Redevelopment Requirement Specifications (.pdf) (October 2016)GENESYS Current Functionality Documentation (.pdf) (October 2016)Contacts: Ben Kujala , Power Planning Division Director John Fazio , Senior Power Systems Analyst John Ollis , Power Systems Analyst Dan Hua , Power Systems AnalystSign up for our Newsletter
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