# Presentation: 376953

## Eastern Wind Integration and Transmission Study

**David Corbus - Project Manager**
**Matt Schuerger (Consultant)**
**National Wind Technology Center**
**NREL**
**Golden, Colorado USA**
- 303-384-6900
- David_Corbus@nrel.gov
- MattSchuerger@earthlink.net

## Objectives of Eastern Wind Integration and Transmission Study (EWITS)

- Evaluate the power system impacts (operating due to variability and uncertainty of wind; transmission; reliability) associated with increasing wind capacity to 20% and 30% of retail electric energy sales in the Joint Coordinated System Plan region (MISO/PJM/SPP/TVA) by 2024;
- Build upon prior wind integration studies and related technical work;
- Coordinate with Joint Coordinated System Plan (JCSP) and current regional power system study work;
- Produce meaningful, broadly supported results through a technically rigorous, inclusive study process.

## Key Issues & Questions include

**Key Issues & Questions include**

- What are the benefits from long distance transmission that accesses multiple wind resources that are geographically diverse?
- What are the benefits from long distance transmission that move large quantities of remote wind energy to urban markets?
- What are the cost/benefits of remote wind resources that require transmission versus lower wind speed local wind resources?
- How much does geographical diversity help reduce system variability and uncertainty?

## Key Issues & Questions include

**Key Issues & Questions include**

- What additional system operational impacts and costs are imposed by wind generation variability and uncertainty?
- What is the role and value of wind forecasting?
- What benefit does balancing area cooperation or consolidation bring to wind variability and uncertainty management?
- How does wind generation capacity value affect reliability?

## Wind Integration Methods & Best Practices

**Wind Integration Methods & Best Practices**

- Capture system characteristics and response through operational simulations and modeling;
- Capture wind deployment geographic diversity through synchronized weather simulation;
- Match wind output with actual historic utility load and load forecasts;
- Use actual large wind plant power statistical data for short-term regulation and ramping;
- Examine wind variation in combination with load variations.

## Wind Integration Methods & Best Practices Cont.

**Wind Integration Methods & Best Practices** **Cont.**

- Utilize wind forecasting best practices and combine wind forecast error with load forecast error;
- Examine impacts of Balancing Area consolidation and fast markets.

## Key Tasks- Eastern Wind Integration & Transmission Study

**Three main tasks**
- Mesoscale wind resource modeling and development of wind power plant outputs
- 2) Transmission Analysis (with JCSP)
- 3) Wind integration study

## Key Tasks- Mesoscale wind resource modeling 

- Develop high quality wind resource data sets for the wind integration study area (mesoscale modeling, 3 years)

## Key Tasks- Eastern Wind Integration & Transmission Study

- Identify wind power generation sites for 20% & 30% wind energy scenarios
- More than 300 GWs of total wind power data generated in time series for 3 years!
- 135 GWs for 20% energy and 200 GWs for 30% energy scenario

## Key Tasks- Transmission Analysis

- Develop transmission plan (coordinated with JCSP)
- Run hourly dispatch/market models

## Joint Coordinated System Plan (JCSP)

- The 2007/2008 Joint Coordinated System plan will include MISO, PJM, SPP, and TVA
- The JCSP will perform a long term planning study incorporating both economic (2024) and reliability (2018) analysis of system performance for the combined four JCSP areas
- Collaboration with the parallel DOE Eastern Wind Integration & Transmission Study will provide underlying assumptions for generation scenarios
- Scheduled to be completed December 2008

## Key Tasks- Eastern Wind Integration & Transmission Study

- Evaluate operating impacts and associated costs
- Regulation
- Load Following
- Unit Commitment
- Evaluate reliability impacts (ELCC/LOLP)

## Technical Review Committee (TRC)

- A TRC will be formed with regional and national technical experts on wind generation and power systems analysis to help guide and review the study
- The TRC will review and provide feedback on key assumptions, methods, and preliminary results
- It is anticipated that the TRC will meet quarterly throughout the study

## Preliminary Schedule

- Nov 07 – Feb 08 Study Development and Stakeholder input
- January 2008 Award Wind Mesoscale Modeling Contract
- February 2008 Award Wind Integration Contract
- Jan – Oct 2008 Develop Wind Data Sets
- April – Dec 2008 Develop Transmission Plan in Coordination with JCSP
- Sept 08 – May 2009 Evaluate Operating & Reliability Impacts
- June 2009 Complete Study

## Your Input is Important!

- Suggestions on questions to address in study or other comments/input
- Study methodology, scope, scenarios, transmission analysis, operating impacts,
- Data for study (e.g., load and wind resource tall tower data)
- Contact Dave Corbus at _[David_corbus@nrel.gov](mailto:David_corbus@nrel.gov)_ (303-384-6966) or Matt Schuerger at _[MattSchuerger@earthlink.net](mailto:MattSchuerger@earthlink.net)_ (651-699-4971)