Introduction Slides Nate Blair February 26, 2017 NREL System - - PowerPoint PPT Presentation

▶
introduction slides
SMART_READER_LITE
LIVE PREVIEW

Introduction Slides Nate Blair February 26, 2017 NREL System - - PowerPoint PPT Presentation

Aug 09, 2023 263 likes •439 views

System Advisor Model (SAM) Introduction Slides Nate Blair February 26, 2017 NREL System Modeling T ools NATIONAL RENEWABLE ENERGY LABORATORY 2 System Advisor Model (SAM) System Advisor Model Free software that enables detailed performance

slide-1
SLIDE 1

System Advisor Model (SAM) Introduction Slides

Nate Blair

February 26, 2017

slide-2
SLIDE 2

NATIONAL RENEWABLE ENERGY LABORATORY 2

NREL System Modeling T

  • ols
slide-3
SLIDE 3

NATIONAL RENEWABLE ENERGY LABORATORY 3

Free software that enables detailed performance and financial analysis for renewable energy systems

System Advisor Model (SAM)

System Advisor Model

http://sam.nrel.gov/download

slide-4
SLIDE 4

NATIONAL RENEWABLE ENERGY LABORATORY 4

Steps to Modeling Renewable Energy

Weather Data System Specs Electricity Production Costs System Losses Compensation Financing Incentives Results lts

Annual, Monthly, and Hourly Output, LCOE, NPV, Payback, Revenue, Capacity Factor

slide-5
SLIDE 5

5

Techn hnol

  • logi
  • gies

Photovoltaics Detailed & PVWatts Battery Storage Wind Concentrating solar power Geothermal Biomass Solar water heating

Finan nanci cial al Models ls

Behind-the-meter residential commercial third-party ownership Power purchase agreements single owner equity flips sale-leaseback Simple LCOE calculator

slide-6
SLIDE 6

NATIONAL RENEWABLE ENERGY LABORATORY 6

Who uses SAM? Why?

  • Lawma

wmaker ers and Ut Util ilit itie ies

… to study how a policy would affect the economics of a typical system … to analyze different types of utility rate structures for renewables

  • Deve

veloper

  • pers and Engine

neer ers

… to compare technologies, sites, or configurations … to estimate the Levelized Cost of Energy for a system

  • Resear

arch cher ers

… to examine how an innovative concept might be able to lower the Levelized Cost of Energy … to estimate the technical potential of a technology in a region

  • Stude

dents nts

… to learn about renewable energy … to explore financing structures for renewable energy

System Advisor Model

slide-7
SLIDE 7

NATIONAL RENEWABLE ENERGY LABORATORY 7

SAM Users

System Advisor Model

Over 35,000 active users in 130+ countries SAM is started ~every 2 ½ minutes ( > 600 times per day) 90+ webinars with 113,346 views Users include Xcel Energy, Southern Company, EPRI, & more

slide-8
SLIDE 8

NATIONAL RENEWABLE ENERGY LABORATORY 8

  • Website – http://sam.nrel.gov
  • Support Forum – Ask your question!
  • General info/ online help file / contact info
  • YouTube Channel
  • https://www.youtube.com/user/SAMDemoVideos
  • All prior webinars and seminars
  • Bi-Monthly Round Table sessions
  • SAM team asks questions live and interactively
  • Email Support
  • SAM support can provide email support if

question/bug is involved

How to Interact with the SAM team and get help?

slide-9
SLIDE 9

NATIONAL RENEWABLE ENERGY LABORATORY 9

Recent Addition: Battery Model

  • Designed primarily for behind-the-meter analysis

(residential and commercial scale systems)

  • Lithium ion and lead acid chemistries including submodels

for cell voltage, capacity, thermal, degradation, and replacements

  • Highly configurable manual dispatch controller
  • Integrated with PV system lifetime analysis to capture

economic effects of capacity degradation and costs of replacement

  • Incentives, complex utility tariff structures, and financing

costs included in analysis.

  • Validated with laboratory measured test data for two

systems.

slide-10
SLIDE 10

NATIONAL RENEWABLE ENERGY LABORATORY 10

Complex Feature: 3D shading calculator

  • Fully integrated into SAM
  • Calculates linear beam shading losses and sky

diffuse view factor loss

  • Imports 2D mapping underlays from Bing maps
  • Diurnal or hourly/subhourly time series shade

simulation

  • Estimation of nonlinear losses for shaded

parallel strings

  • Scripting to automate panel layout and

import/export geometry data

slide-11
SLIDE 11

NATIONAL RENEWABLE ENERGY LABORATORY 11

Irradi diance Transposition using Isotropic, HDKR, or Perez Measured plane of array (POA) input Shadi ding Irregular obstruction shading from 3D scene Self-shading for regularly spaced rows External input from SunEye, Solar Pathfinder Snow cover loss model Module Simple efficiency model Single diode model (CEC database or datasheet) Extended single diode model (for IEC-61853 tests) Sandia PV Array Performance Model Inverte ter Sandia/CEC grid-tied inverter model Datasheet part-load efficiency curve System Sizing wizard or electrical layout Multiple subarrays Fixed, 1 axis, backtracking, azimuth axis, 2 axis Battery storage Degrada dation

  • n

Extrapolated single year Lifetime simulation of all years Simul mulati tion

  • n

1 minute to 1 hour time steps

Deeper Dive: Detailed photovoltaic model

slide-12
SLIDE 12

NATIONAL RENEWABLE ENERGY LABORATORY 12

Complex utility rate model options

Additional net metering options have been added and implemented to help users understand the impact of different scenarios currently implemented in several states. New data browser categorizes and consolidates results. Linkage with OpenEI rate database improved and expanded for some international rates.

http://www.openei.org

slide-13
SLIDE 13

NATIONAL RENEWABLE ENERGY LABORATORY 13

  • Load profile in a

file that can be scaled for monthly values.

  • Use data about

the building to create load data with consistent weather data Several ways to enter building load data

slide-14
SLIDE 14

NATIONAL RENEWABLE ENERGY LABORATORY 14

Putting it all together: Dispatch and degradation

Battery meets portion of load during peaks 4 kW PV system 2 kW peak load Battery replacements result in additional costs User input degradation with cycling and depth-of-discharge

slide-15
SLIDE 15

NATIONAL RENEWABLE ENERGY LABORATORY 15

  • Desktop Application
  • Advanced Analysis Features
  • Parametric
  • Stochastic (and for O&M)
  • P50/P90
  • Built-in Scripting Language
  • Macros
  • Written with SAM scripting language
  • Software Development Kit (SDK)
  • C/C++, Python, C#, Java
  • Matlab, VBA
  • PHP
  • iOS And Android (NEW!!!)
  • Web Services API (PVWatts Only)
  • Open-sourced SAM code (NEW!!!)

Extending SAM

SAM Simulation Core (SSC)

inputs

  • utputs

C/C++ MATLAB Python .NET Java

External applications

PV CSP SWH Financials

SAM project file  Code SDK

slide-16
SLIDE 16

www.nrel.gov

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.

Thank you! Questions?

Janine Freeman - project lead, photovoltaic and wind models Nick DiOrio - code architecture, battery storage models Nate Blair - emeritus lead, financials, costs, systems Steve Janzou - programming, utility rate structures (subcontractor) Paul Gilman - user support and documentation (subcontractor) Ty Neises - concentrating solar power models Mike Wagner - concentrating solar power models

http://sam.nrel.gov