Retrotec USACE - Manual (Page 24)

2 ENERGY & PROCESS ASSESSMENT PROTOCOL
The Level II Assessment ■ will follow the Level I assessment to verify
the Level I assumptions and to more fully develop the ideas from the
Level I screening analysis. The Level II effort includes an in-depth
analysis in which all assumptions are verifi ed.
The Level III Assessment
■ is a detailed engineering analysis with
implementation, performance measurement, and verifi cation (M&V)
assessment and fully instrumented diagnostic measurements. On this
level ongoing commissioning activities should also be organized, includ-
ing regular analysis of consumption and measurement data, site inspec-
tions, and operation and maintenance (O&M) improvements.
1.3 Structure of the Protocol
This protocol consists of two parts: Part I describes the energy assessment pro-
cedure and deals with running an energy assessment scheme in a large build-
ing stock. Part II is more technical and includes examples of typical energy
conservation measures in different types of buildings and typical processes.
LEVEL 0
= Pre-assessment phase
• Selection of objects for energy audits
LEVEL I
Screening = Preliminary energy and process
optimization assessment, qualitative analysis
• Walk-through audit
• Analysis of consumption figures and documents
• List of possible energy conservation measures
LEVEL II
= In-depth quantitative analysis to verify Level I results
• Full energy audit
• Measurements
• List of measures for funding and implementation
LEVEL III
= Detailed engineering analysis
• Implementation
• Performance measurement and verification
• Ongoing continuous commissioning
Screening
Walk-through
Full energy audit
Implementation
Figure 1. Scope and depth of the assessment.