Technical and Economic Assessment best practice examples of new - - PowerPoint PPT Presentation

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Technical and Economic Assessment best practice examples of new - - PowerPoint PPT Presentation

Sep 09, 2023 292 likes •474 views

Technical and Economic Assessment best practice examples of new generation solar thermal and PV driven heating and cooling systems Daniel NEYER 1,2 , Rebekka KLL 3 , Daniel MUGNIER 4 Sept 19 th 2018 ISES webinar Slide 1 Introduction Solar

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SLIDE 1

Sept 19th 2018 ISES webinar Slide 1

Technical and Economic Assessment

best practice examples of new generation solar thermal and PV driven heating and cooling systems

Daniel NEYER1,2, Rebekka KÖLL3, Daniel MUGNIER4

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SLIDE 2

Sept 19th 2018 ISES webinar Slide 2

Introduction

  • Solar cooling and heating can be complex
  • Solar Thermal or Photovoltaic driven
  • System design & configurations (backups, storages,…)
  • Demands (domestic hot water, space cooling, …)
  • …

 Assessment in a common comparable format

  • energetic, ecological, economic, evaluation

 T53E4 Assessment Tool

  • Assessment based on (monthly) energy balances
  • Measured or simulated (sub) system
  • Data base for Technical and Economic assessment
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SLIDE 3

Sept 19th 2018 ISES webinar Slide 3

Introduction

  • Solar cooling and heating can be complex
  • Solar Thermal or Photovoltaic driven
  • System design & configurations (backups, storages,…)
  • Demands (domestic hot water, space cooling, …)
  • …

 Assessment in a common comparable format

  • energetic, ecological, economic, evaluation

 T53E4 Assessment Tool

  • Assessment based on (monthly) energy balances
  • Measured or simulated (sub) system
  • Data base for Technical and Economic assessment
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SLIDE 4

Sept 19th 2018 ISES webinar Slide 4

Technical Key Figures

  • Non-renewable primary energy ratio (PERNRE)

Energy input () converted in primary energy

electricity: εel = 0.4 kWhUse/kWhPE.NRE natural gas: εin = 0.9 kWhUse/kWhPE.NRE

  • Standardized Task 53 reference system

Natural gas boiler, air-cooled vapor compression chiller

  • Non-renewable primary energy savings (fsav.PER-NRE)
  • . 1 .

.

  • PER. !"

∑ Q%&'

((

∑ Q%&'.)!*' + Q,%--. !" ./ ∗ η23. !" + Q%&'.4%,5

  • SPF8. !" ∗ !, + Q!,, !"

!,

((

∑ :;<

((

∑ =, = +

  • ((
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SLIDE 5

Sept 19th 2018 ISES webinar Slide 5

Economic Key figures

  • Annuity method & input values based on EN-standards
  • Standardized (data base) to calculate annualized costs
  • Investment, replacement & residual value
  • Maintenance & service,
  • Operational costs (energy, water)
  • Solar Heating and Cooling and Reference
  •  Levelized cost of energy

CostRatio (CR)

CostRatioDCRE FGGHFIJKLM OPQRQ STU FGGHFIJKLM OPQR V

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SLIDE 6

Sept 19th 2018 ISES webinar Slide 6

Overview Examples

  • Assessment of 28 SHC plants with T53E4 Tool
  • 17 examples (28 configurations)
  • System & Subsystem Analysis
  • Trend analysis
  • Sensitivity analysis
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SLIDE 7

Sept 19th 2018 ISES webinar Slide 7

Overview Examples

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SLIDE 8

Sept 19th 2018 ISES webinar Slide 8

Results obtained

  • Assessment of 28 SHC plants with T53E4 Tool
  • Technical analysis

− Energy balance check − Comparison to T53 Standard − System & Subsystem Analysis − PERNRE, PERNRE.ref, fsav.NRE, SPFequ

  • Economic analysis

− Investment, Replacement & Residual − Maintenance, Energy (electricity, natural gas,…) − Comparison to T53 Standard − Spec. Invest, LCOESHC, LCOEREF, CR

  • Trend analysis
  • Sensitivity analysis
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Sept 19th 2018 ISES webinar Slide 9

Summary Result

  • Exclude plants with no annual energy balance
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Sept 19th 2018 ISES webinar Slide 10

Trend analyses

  • Many different configurations / boundaries
  • Size / demand / technology / data source / location…

 Clustering of results

  • south/northern location
  • PV and ST supported systems
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Sept 19th 2018 ISES webinar Slide 11

Trend analyses

  • Many different configurations / boundaries
  • Location & technology
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Sept 19th 2018 ISES webinar Slide 12

Trend analyses

  • Many different configurations / boundaries
  • Location & technology
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Sept 19th 2018 ISES webinar Slide 13

Sensitivity analyses

  • Influence of chosen boundaries
  • Investment, Electricity, Natural Gas price
  • Auxiliary demand, Energy output,
  • Non-renewable primary energy conversion factors

 Influence shown on trends

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SLIDE 14

Sept 19th 2018 ISES webinar Slide 14

Sensitivity analyses

  • Influence of chosen boundaries
  • Investment cost
  • Auxiliary demand, Energy output,
  • Non-renewable primary energy conversion factors

 Influence shown on trends

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SLIDE 15

Sept 19th 2018 ISES webinar Slide 15

Sensitivity analyses

  • Influence of chosen boundaries
  • Investment cost
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SLIDE 16

Sept 19th 2018 ISES webinar Slide 16

Summary

  • T53E4 Assessment Tool
  • Simplified analysis of system / subsystem
  • Useful for benchmarking against reference and other RE
  • Focus on
  • non-renewable primary energy (fsav.NRE)
  • Cost Ratio
  • Performance of SHC examples
  • Non-renewable Primary Energy Savings 40-80%
  • Higher savings lead to higher costs
  • Economics are mainly investment dominated
  • Simplification and component reduction !!
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SLIDE 17

Sept 19th 2018 ISES webinar Slide 17

Summary

  • Sensitivity analysis
  • Effect of changes in boundaries
  • Trend wise comparison of results
  • Large differences for different systems

sensitivity for certain type of systems to follow soon

  • Advantage of ST or PV is depending on …
  • Local conditions
  • System design & Application

 Both technologies can be optimized  Cost competitiveness can be reached

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Sept 19th 2018 ISES webinar Slide 18

Thank you for your attention!