of Mini-Grids: Tools & Software Dr. Peter Lilienthal Asia Clean - - PowerPoint PPT Presentation

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of Mini-Grids: Tools & Software Dr. Peter Lilienthal Asia Clean - - PowerPoint PPT Presentation

Sep 02, 2023 138 likes •327 views

Optimizing Clean Power Everywhere Engineering Design of Mini-Grids: Tools & Software Dr. Peter Lilienthal Asia Clean Energy Forum Deep Dive Workshop on Hybrid Mini-grids June 15, 2015 1790 30th St, Suite 100, Boulder, Colorado 80301, USA

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SLIDE 1

Optimizing Clean Power Everywhere

1790 30th St, Suite 100, Boulder, Colorado 80301, USA http://www.homerenergy.com ● +1-720-565-4046

Engineering Design

  • f Mini-Grids:

Tools & Software

  • Dr. Peter Lilienthal

Asia Clean Energy Forum

Deep Dive Workshop on Hybrid Mini-grids June 15, 2015

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SLIDE 2

Modeling Challenge

  • Solar and wind are variable

– Needs integration with dispatchable resources

  • Smaller projects need simpler tools
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SLIDE 3

Different Tools for Different Purposes

Renewable Advocates Utility Operators

HOMER Model

Power Engineers Financiers HOMER as a communication tool

www.homerenergy.com

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SLIDE 4

Too Many Choices

Hydro Geothermal Demand Response Smart grids Micro-grids

Clean Power Everywhere

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SLIDE 5

What is best?

  • Depends on the application

–Resources –Loads –Equipment prices –Equipment performance

  • A confused mind says “No!”
  • HOMER fits the pieces together

Clean Power Everywhere

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SLIDE 6

HOMER

  • Industry standard for hybrid micro-grids

– Conventional resources – Renewable resources – Storage – Load Management

  • Afternoon Deep Dive Workshop
  • Full-day training on Saturday
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SLIDE 7

HOMER

  • NREL: 1992-2009
  • Original developers now at HOMER Energy
  • 125,000+ users in 193 countries

20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 2010 2011 2012 2013 2014 Q1_15

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SLIDE 8

HOMER Analysis Layers

  • Simulation

– Accurate analysis of time varying loads and resources require an hour- by-hour analysis for entire year

  • Optimization

– Find the least cost solution

  • Sensitivity Analysis

– The data is never “good enough”. – What if….?

Simulation Optimization Sensitivity Analysis

Energy Balance

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SLIDE 9

HOMER has a Global Reputation

“We spent a lot of money developing our own model, but threw it away because everyone kept asking for our HOMER results.”

Bruce Levy, CEO, TDX Power

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SLIDE 10

What’s New with HOMER Pro

Library

– Store cost data in the library – All components, loads, settings and resource in library – Library management tool

New Results

– Choose parameters for summary tables – Sort and filter on any output – Direct results export to .CSV (spreadsheet format)

New Input capabilities

– Built-in default load profiles – Obtain resource data by clicking on a map or typing address

APIs

– Application Programming Interfaces – Custom dispatch modules

Parallel processing

New components

– Thermal load controller – Concentrating PV – MPPT/Dedicated PV Inverter – Hydrokinetic

Improved Components

– Grid-connected battery – Grid outages

  • Scheduled and random

– Up to 20 generators – Up to 10 PV arrays – Wind turbine losses – Maintenance schedules – Minimum generator runtimes – Fuel minimization

http://www.homerenergy.com

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SLIDE 11

Optimal System Design

  • What kind
  • f system

is best under which conditions?

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SLIDE 12

Random Outages

  • Simple Diesel is best if outages are infrequent.
  • Simple PV-Battery best if outages are short
  • Hybrids are best in most cases
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SLIDE 13

Operational Analysis

  • When is backup power needed?

Jul 10 Jul 11

  • 5

5 Power (kW) AC Primary Load PV Pow er Diesel Pow er Battery Pow er

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SLIDE 14

Policy Analysis

  • Cost of emission constraints

5,000 10,000 15,000 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Levelized Cost of Energy ($/kWh)

Levelized Cost of Energy vs. Max. CO2 Emissions

  • Max. CO2 Emissions (kg/yr)
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SLIDE 15

Penetration Metrics

  • Six very different metrics for the same system

– 85 kW of PV with a 213 kW Peak load – 1% curtailed energy

http://www.homerenergy.com

Maximum instantaneous 70.1% Peak load 39.9% Generation capacity 34.0% Energy production 12.5% Renewable fraction 11.6% Fuel savings 8.7%

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SLIDE 16

Diesel grid parity

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SLIDE 17

Clean Power Evolution

  • Large utilities

– Security obstacles – Regulatory obstacles

  • Smaller systems

– Liquid fuels from oil – High renewable penetrations

http://www.homerenergy.com