energy analysis report from cove

Energy
Analysis
Report
powered by cove
GreenEdge
Sample Project
Green Edge
John Smith
Principal Architect
johnsmith@greenedge.com
09/16/2024

Table of
Content​
1
Project Overview​
2
Energy Results
5-7
Key Project Inputs & Assumptions
4
Appendix

Project
Overview
Get a yearly understanding of your project's energy usage and
benchmarking to quickly see the impact of design decisions and
stand out to the client.​
Sample Project Name
Project
Information
Location
Energy Code
Building Area
Building Type
Window to Wall Ratio
(WWR)
301 Scotland St, Someplace,
VA 23185
ASHRAE 2007
67,950
Education
19.42%
Cooling
Your cooling load is not dominating your
energy use. This is because your HDD are
higher than your CDD days.
Heating
Your heating load is dominating your energy
use. This is because your HDD are higher
than your CDD days. You can reduce your
heating load by facade, HVAC system or
reducing infiltration.
Lighting
Your lighting load contributes to 18.44% of
the total EUI. You can reduce your lighting
load by reducing your lighting power density
and having daylight and occupancy sensors
in the Engineering Inputs.
Equipment
Your equipment load contributes to
14.41% of the total EUI. You can reduce
your equipment load by reducing your
appliance power density in the
Engineering Inputs.
Hot Water
Your hot water load contributes to 4.19%
of the total EUI. You can reduce your hot
water load by reducing your domestic hot
water demand and using a more efficient
hot water generation system in
Engineering Inputs.
Fans
Your fan load contributes to 7.82% of the
total EUI. You can reduce your fan energy
by switching your fan flow control
accordingly in the Engineering Inputs.
Total Outdoor Air for the project is
17579.88 CFM.
Pumps
Your pump load contributes to 0.92% of
the total EUI. You can reduce your pump
energy by adjusting pump control for
cooling/heating in the Engineering Inputs.

Energy
Results
Energy Use Intensity (EUI) is a key metric for evaluating a building's
energy performance. EUI represents the energy consumed by a buil
ding per unit area, expressed in kBtu per square foot per year (kBtu
/ft²/yr).
51.15
Proposed EUI
(kBtu/ft2/year)​
0
LEED v4.0 Optimize
Energy Performance
Estimated Points​
$47,904.24
Electricity​ (cost/yr)
53%
Operational CO2e Reducti
on
$14,039.27​
Gas (cost/yr)
629.5
Emissions(Tonne CO2e/yr)
1340.8
2030 Baseline (Tonnes
CO2E/yr)
EUI Breakdown
18
16
EUI breakdown
16.6
AIA 2030 Benchmark
120
AIA 2030
Benchmark
kBtu/ft2/year
14
12
10
8
6
4
2
0
10.37
10.8
6.82
3.69
2.52
0.35
Cooling Heating Lighting Equipment Fans Pumps Hot Water
0
Your EUI
51.15
2030
Baseline
108.95
2030
Target
21.79

Key project
Inputs &
Assumptions
Proposed
Envelope
Inputs
Roof R-Value (h ft² F / BTU)
Wall R-Value (h ft² F / BTU)
Spandrel U-Value (BTU/h ft² F)
Glazing U-Value (BTU/h ft² F)
Glazing SHGC
Skylight U-Value (BTU/h ft² F)
Skylight SHGC
Envelope Heat Capacity
Blinds/Curtains/Shades
Wall Emissivity
Roof Emissivity
Ground Floor Area (ft²)
Ground Floor U-Value (BTU/h ft² F)
Below Grade Area (ft²)
Below Grade Depth (ft)
Below Grade U-Value (BTU/h ft² F)
20
7.6
0.25
0.65
0.25
0.29
0.21
Medium: 165,000
No Blinds
0.9
0.9
22,650
0.047
0
0
0.58

Key project
Inputs &
Assumptions
Usage &
Schedule Inputs
Daylight Sensors (%)
Occupancy Sensors (%)
Lighting (W/ft²)​
Exterior Lighting Power (Watts)
Appliance Use (W/ft²)
Metabolic Rate (MET Value)
Heating Set-Point (F)
Heating Set- Back (F)
Cooling Set-Point (F)
Cooling Set-Back (F)
Total Occupants
No Sensors: 0%
No Sensors: 0%
0.81
0
0.5
Standing: 70
70
59
74
84
902
Energy
Generation
Solar Panel Surface Area (ft²)​
Solar Panel Angle
Solar Panel Module Location
Solar Panel Module Type
SHW Collector Surface Area (ft²)
SHW Collector Angle
SHW Collector Efficiency​
0
0
N/A
N/A
0
0
N/A

Key project
Inputs &
Assumptions
Baseline
System
Inputs
System Type
Integrated Part Load Value
Heating System COP
Cooling System COP
Heat Recovery System
Fan Flow Control Factor
Specific Fan Power
Ventilation Type
People Outdoor Air Rate (CFM/Person)
Area Outdoor Air Rate (CFM/ft²)
Infiltration (CFM/ft²)
Ventilation Calculation Type
Building Energy Management System
Ventilation Control
DHW GEN
Hot Water Distribution system
Domestic Hot Water Demand (gal/yr)
Pump Control for Cooling
Pump Water for Heating
VAV w/Reheat, with Gas Boiler and Air
Cooled Chiller
Variable Speed Drive Centrifugal Chiller
0.82
4.01
No Heat Recovery
Variable Speed
Central Mechanical Ventilation with
Heating and Cooling
Mechanical
10.59
0.12
0.12
Ventilation Rate Procedure
None
Demand Control
VR-Boiler
Taps within 3m of Heat Generation
212,798.14
Auto Pump: 50%
All Other Cases

Appendix
Analysis &
Methodology
Understanding how we produced the numbers is key for building
trust. Our independent cove.tool consulting team performed the
analysis with combination of energy code and engineering best
practice.​
What is AIA 2030 Challenge?​
The Architecture 2030 Challenge is
a national effort to encourage an industrywide
commitment to prioritize building
energy performance and reduce buildingrelated
impacts on the environment. It plans
to achieve this change by a framework for
standardized reporting (DDx) so that every
firm can compete to meet the Challenge's
annual 2030 energy-use percent reduction
target (currently at an 80% Reduction
from Baseline in 2021).​
What is EUI?
Energy Usage Intensity (EUI) refers to the
energy required to operate and sustain the
project once it's occupied. The metric is
expressed as the energy per area per year.
Why EUI Matters?
Energy Efficiency: A lower EUI generally
indicates a more energy-efficient building. It
tells you how hard your building's systems
are working to provide the same level of
service or comfort.​
Cost Implications: A high EUI can translate
to higher operational costs. Energy is a
significant operating expense for most
buildings, so understanding your EUI can
help in budget planning.​
Environmental Impact: The lower the EUI,
the lower the building's carbon footprint,
assuming the energy comes from similar
sources.​ This is particularly important in the
context of global efforts to reduce
greenhouse gas emissions.​
Regulatory Compliance: Some jurisdictions
require buildings to meet​ specific EUI targets
as part of broader energy conservation or
carbon reduction initiatives.
EUI Breakdown Categories​
Space heating and cooling: Energy usage
calculation for heating and cooling of the
space based on the project details such as
location, geometry, occupancy rate etc.​
Lighting: The energy consumed by both
indoor and outdoor lighting for the space.
In addition to impacting just the lighting
load, the lighting fixture also produce
internal heat and lead to sensible heat
gain for the cooling calculations.​
Equipment: The energy consumed by the
appliances used in the space for daily
operations. Examples include computers,
coffee machines, refrigerators, etc.
Equipment are also contributors towards
space heat gain.​
Fans: Energy consumed by the fans used
by HVAC systems for maintaining the
space comfortable ventilation.​
Pumps: The pump flow energy is the
auxiliary energy source whose distribution
losses lead to the pump EUI numbers.
Hot Water: The energy spent on heating
up the water, and it varies based on the
project use type. For example, office and
hotel would have significantly different
hot water energy consumption and
the EUI numbers will reflect that.​
PV Energy: This category will only appear
in the platform if the PV panel data has
been added to the project. Since this
energy is generated on site, it will appear
as a negative number and will be factored
into the total EUI calculation.​
Factors Affecting EUI​
Building Type: Different types of
buildings have different EUI
benchmarks. For example, hospitals​
typically have a higher EUI than office
buildings due to their round-the-clock
operations and specialized equipment.​
Climate: Buildings in colder or hotter
climates may have higher EUIs due to
greater heating or cooling needs.​
Occupancy: More people generally mean
more energy use, but not always. An
efficiently designed high-occupancy
building can have a lower EUI than a less
efficient, low-occupancy building.​
Understanding EUI is a critical step in
diagnosing a building's energy
performance, providing a numerical basis
for improvements and making
​comparisons over time or across a
portfolio of buildings. It's a valuable metric
for anyone interested in optimizing
building performance, reducing
operational costs, and minimizing
environmental impact.​
What is the simulation engine used for
the energy analysis?​
The engine used for energy analysis is ISO
13790. This is a reduced-order simulation
engine and produces annual results.​
What is the Heat Balance method used in
energy modeling?​
The Heat Balance method is based upon
the energy conservation theorem. The
Heat Balance method calculates heat
gains and losses for each surface of a
zone, along with the instantaneous
internal loads. ​Many different engines like
ISO 13790, EnergyPlus, etc. utilize the
Heat Balance method for energy usage
calculations​.

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