Optimizing geographic allotment of photovoltaic capacity in a distributed generation setting : preprint / B. Urquhart, M. Sengupta and J. Keller.

Format:

Book

Conference/Event

Government document

Author/Creator:

Urquhart, Bryan.

Sengupta, Manajit, author.

Keller, Jamie., author.

Contributor:

National Renewable Energy Laboratory (U.S.)

Conference Name:

E.C. Photovoltaic Solar Energy Conference (27th : 2012 : Frankfurt am Main, Germany)

Series:

Conference paper (National Renewable Energy Laboratory (U.S.)) ; NREL/CP-5500-56539.

NREL/CP ; 5500-56539

Language:

English

Subjects (All):

Photovoltaic power systems--Hawaii--Lanai.

Photovoltaic power systems.

Photovoltaic power generation--Hawaii--Lanai.

Photovoltaic power generation.

Hawaii--Lanai.

Genre:

technical reports.

Technical reports

Technical reports.

Physical Description:

1 online resource (7 pages) : color illustrations, color map.

Place of Publication:

Golden, Colo. : National Renewable Energy Laboratory, [2012]

Summary:

A multi-objective optimization was performed to allocate 2 MW of photovoltaic (PV) among four candidate sites on the island of Lanai, Hawaii, such that energy was maximized and variability in the form of ramp rates was minimized. This resulted in an optimal solution set that provides a range of geographic allotment alternatives for the fixed PV capacity. Within the optimal set, a trade-off between energy produced and variability experienced was found, whereby a decrease in variability always necessitates a simultaneous decrease in energy. A design point within the optimal set was selected for study that decreased extreme ramp rates by more than 50% while decreasing annual energy generation by only 3% more than the maximum generation allocation. To quantify the allotment mix selected, a metric was developed--called the "ramp ratio"--that compares ramping magnitude when all capacity is allotted to a single location to the aggregate ramping magnitude in a distributed scenario. The ramp ratio quantifies simultaneously how much smoothing a distributed scenario would experience over single site allotment and how much a single site is being underutilized for its ability to reduce aggregate variability. This paper creates a framework for use by cities and municipal utilities to reduce variability impacts while planning for high penetration of PV on the distribution grid.

Contents:

Introduction

Methodology

Results

Conclusions.

Notes:

Title from title screen (viewed on Oct. 29, 2012).

"September 2012."

"To be presented at the 27th European Photovoltaic Solar Energy Conference and Exhibition, Frankfurt, Germany, September 24-28, 2012."

Includes bibliographical references (page 7).

OCLC:

815514768