sam anaheim intro s1

7/30/2019 Sam Anaheim Intro s1

1/23

NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy operated by the Alliance for Sustainable Energy, LLC

The Solar Advisor ModelAn Introduction

Nate Blair

Aron Dobos

Mike Wagner

Chris Cameron

October 30, 2009


2/23

Contents

BackgroundVersions

Users

Development team

Downloading

Getting help

Live Demo

2National Renewable Energy Laboratory Innovation for Our Energy Future


3/23

Vision

Facilitate comparison of solar technologies

Consistent cost, financing, and incentive modeling across technologies Multiple technologies in a single model (PV, CSP, SWH)

No Blanks philosophy to help users in areas they didnt know

Avoid reinventing the wheel

Use high-quality performance models developed by NREL, Sandia,and other partners

Make models used internally by developers available to a wider

audience

Evaluate investment options by analyzing technologies in

complete systems using both performance and economicmetrics

User-friendly interface especially to facilitate sensitivity

analysis and graphing capabilities



4/23

Version History

Pre-release Solar America Initiative (SAI) Version

Used by DOE, labs, and SAI Technology Pathway Partnership applicants

Version 1.1, August 2007 First release, models PV, and CSP parabolic trough systems

Version 1.3.0.9, October 2007

Read EPW weather files, October 2007

Version 2.0.0.2, June 2008

New empirical inverter model from Sandia New PV model from California Energy Commission

Add generic fossil-fuel system

Version 2.5.0.2, December 2008

Add CSP dish-Stirling

Time-of-use utility rates for residential and commercial projects

Online help system

Automated optimization of utility financing parameters

Version 3.0.3.0, June 2009

Add CSP power tower

Add simple PV shading model

National Renewable Energy Laboratory Innovation for Our Energy Future

Each version also

includes featureimprovements and bug

fixes based on user

feedback.

4


5/23

Version 2009, October 2009

New look and feel

Speed improvementsWindows and Mac versions

Simulation options

Parametric analysis (available

in older versions)

Sensitivity analysis Optimization

Statistical

Sub-systems

Excel Exchange (replaces

Linked Spreadsheets)

Scripting language SamUL

PV-Watts implementation

Storage and load

Revised Help system5


6/23

Users

Over 9,000 downloaders (~2000 of newest version) by

Manufacturers

Engineering Consulting and R&D firms

Utilities

Developers

Venture Capital Firms

Examples of applications

Federal Energy Management Program: Feasibility studies

Integrators: Compare with internal financial models

Utilities: Verify energy production estimates

University graduate research projects Department of Energy grant solicitations and awards



7/23

Current Development Team

Management

Nate Blair, NREL

Programming

Aron Dobos, NREL

Steven Janzou*

Photovoltaics

Chris Cameron, Sandia

Bolko von Roedern,

NREL

Concentrating Solar

Power

Mark Mehos, NREL

Craig Turchi, NREL

Mike Wagner, NREL

Water Heating Jay Burch, NREL

Craig Christensen, NREL

Documentation and User

Support Paul Gilman, NREL*

Contact: [email protected]

* Contractors



8/23

Other Contributors

Photovoltaics

Sandia National Laboratories

Development of Sandia PV Array Performance Model and Performance Model forGrid-Connected PV Inverters (David King et. al.)

Parameter data for Sandia PV and inverter models

University of Wisconsin

Development of CEC Performance Model (Five-parameter module model)

California Energy Commission (CEC)

Parameter data for CEC Performance ModelConcentrating Solar Power

NREL

Parabolic trough model (Hank Price et. al.)

University of Wisconsin

Dish-Stirling model, developed with funding from NREL

Financial modeling

Lawrence Berkeley National laboratory: Validation

Navigant Consulting: PV cost model (planned)

WorleyParsons: CSP trough cost model (planned)



9/23

SAM Solar Performance ModelsPV Modules

Simple efficiency model with temp. coefficient

Simple eff. model for concentrating PV Sandia PV Array Performance Model

CEC/Wisc 5-parameter model

PV-Watts model (with option of simple storage & loads)

Inverters

Single-point efficiency inverter model Sandia Inverter Performance Model

CSP

Parabolic Trough (based on NRELs Excelergy model)

Dish Stirling

Power Towers

Generic

Very simple capacity * capacity factor model for comparisonwith non-solar technologies

Red = new or modified in SAM 20099


10/23

Finance Model Options

Detailed Cashflow modelOutput

LCOE, NPV, IRR, Revenue,Taxes, etc.

Residential Cash, Loan or Mortgage

Commercial Cash, Loan or 3rd Party

Owner

Utility Scale IPP or IOU

10


11/23

Financial Incentives

Incentive Types Tax Credits

Investment

Production

Investment BasedIncentives (Buy-Downs)

Capacity Based Incentive

Production Based Incentive

Separate possible entries Federal

State

Utility

Other

Modify Tax Implications


12/23

Downloading SAM

http://www.nrel.gov/analysis/sam

1) Sign in 2) Complete registration form 3) Download



13/23

Getting Help

Online Help and User Guide

Help menu, help buttons, F1 keys

SAM Website

http://www.nrel.gov/analysis/samGoogle Groups

http://groups.google.com/group/sam-user-group

Email User Support

[email protected]



14/23

User Interface: Inputs

Case Tabs

Navigation Menu

Input Page

Simulation and Results14


15/23

User Interface: Results

15


16/23

User Interface:Inputs

ComponentParameters

Financing andCosts

SimulationConfiguration

Behind the Scenes

Tax Credits andIncentives

User Interface:

Results

Financial Metrics:LCOE, IRR, NPV,

Payback, etc.

Detail:Hourly Energy

Flows, Cash Flow

PerformanceMetrics:

Capacity Factor,Annual Output


Weather Data

TMY2, TMY3, EPW

Site Locationand Weather

SAMSIM

Hourly Simulation

Financial Model

C API DLL


17/23

User Interface:Inputs

ComponentParameters

Financing andCosts

SimulationConfiguration

Supporting Files and Programs

Tax Credits andIncentives

SAMSIM

Hourly Simulation

Financial Model

API

User Interface:

Results

Financial Metrics:LCOE, IRR, NPV,

Payback, etc.

Detail:Hourly Energy

Flows, Cash Flow

PerformanceMetrics:

Capacity Factor,Annual Output


Site Locationand Weather

SamUL

Script

Hourly DataViewer

Hourly Performance

ExcelHourly Performanceand Cash Flow Data

Data ExchangeWeather Data

TMY2, TMY3, EPW


18/23

SAMSIM

Processes input data to calculate

hourly output and cash flow

TRNSYS simulation engine Uses component models

developed by the SAM team

Simulation configurations controlled

from user interface

Parametrics, Sensitivity,

Optimization, Statistical,

Multiple Systems, Excel

Exchange

C Language Application

Programming Interface (API)

controls engines interaction with

other modules and programs


18

TRNSYS is developed and maintained by the Solar Energy

Laboratory of the University of Wisconsin at Madison.

http://sel.me.wisc.edu/trnsys/

SAMSIM

Hourly Simulation

Financial Model

C DLL API


19/23

Input Data Sources

Data libraries for:

Weather data

Utility rate structures (commercial and residential)

Component parameters (PV modules, CSP turbines, etc.)

Sample default values for:

System parameters

Financial assumptions

Incentives

Costs

Additional data on the Web for:

Weather data (TMY2, TMY3, EPW format)


19


20/23

Solar satellite data http://mercator.nrel.gov/csp

20


21/23

PV System Cost vs. Module Cost Parametric

Monthly CSP System

Energy Flow

21

Sample Output Graphics


22/23

SAM Live!

Opening files and sample templates

Technology and Market

Input pages

Configure simulationsResults

Help and technical support

Check for updates


22


23/23

Thank you!

[email protected]://www.nrel.gov/analysis/sam

23

sam anaheim intro s1

Documents