Measurement and Verification Moana Nui a Kiwa Heat Pump Upgrade Year 1 Report.pdf

Savings Summary
Year 1 Report
Auckland Council
Moana Nui a Kiwa – Gas Boilers to Heat Pumps

Sep 2022

www.esphq.com / [email address]
+64 9 309 9482 / Level 1 / 20-22 Gundry Street / Auckland 1010 / New Zealand

Executive Summary
Purpose
This document reports on the year to date savings made as a result of gas boilers replaced with heat pumps at the Moana Nui
a Kiwa Leisure Centre.
Savings Summary
This M&V Report relates specifically to verification of ECM performance across the period between 1st of Aug 2022 to 31st July
2023. The following table summarises the annual proposed and guaranteed savings from electricity as well as the verified
savings for this reporting period.
Total Energy Savings
Consumption
Cost Savings*
GHG Emissions
Savings
($/a)
Savings*
(kWh)
(tonne.CO2-e)
Year to Date Verified Savings (Aug 22 – Jul 23)
1,444,239
$109,918
307.42
Total Verified Savings Year 1
1,444,239 (+/-
$109,918
307.42
160,935 at 85%
CI)
* Note that the savings verification only applies to energy consumption savings (not cost or emissions savings)

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Project Information
Energy Solution Providers (ESPNZ) was engaged by Auckland Council to complete a measurement and verification report for
the Moana Nui A Kiwa to quantify and verify savings for the gas boiler replacement to heat pumps.
This M&V Report is based on the principles of measurement and verification outlined in the International Performance
Measurement and Verification Protocol (IMPVP) Volume 1, EVO 10000 – 1:2012. The measurements in this report were
obtained from the ESP’s electricity and gas metering data and an Option B (Retrofit Isolation with all parameter measurement)
measurement strategy was employed.
Contact Details
Postal
Physical
PO Box 109501
Level 1
Newmarket
20-22 Gundry Street
Auckland, 1149
Auckland, 1010
PH: + 64 9 309 9482
Web: espnz.co.nz
Project Details
Project Ref:
Moana Nui A Kiwa – Boiler to Heat Pump Replacement
Issued:
26/09/2023
Company:
Auckland Council – Moana Nui A Kiwa Leisure Centre
Site Location:
66R Mascot Avenue, Māngere, Auckland 2022
Site Activity:
Leisure Centre
Compiled by:
Mannat Choksi
Position:
Services Manager
Approved by:
Mannat Choksi – CMVP
Position:
Services Manager

Confidentiality Statement
The content of this report is the intellectual property of Energy Solution Providers Ltd. Any copying, republication or
redistribution of this report in whole or part is expressly prohibited without the prior written consent of Energy Solution
Providers Ltd.
Disclaimer Statement
While all effort has been taken to ensure the accuracy of the content of this report, Energy Solution Providers Ltd. shall not be
liable for any errors in content or for action taken in reliance there on.
© Energy Solution Providers Limited 2020

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Project Background
Project Information
Project
Client Name
Auckland Council – Moana Nui a Kiwa
Site Location
66R Mascot Avenue, Māngere, Auckland 2022
Activity Description
Leisure Centre
Funding Partner

M&V Information
Framework
IPMVP Option
Hybrid Option B (Retrofit Isolation with all parameter measurement) + Option C
(Whole Site)
Measurement
Measured Parameter
Gas Usage before and after the upgrade + Electricity usage of heat pumps
Measurement Strategy
Energy usage data from ESP Metering
Measurement Boundary
Natural Gas Usage at the Site Location and Heat Pumps submeters
Measurement Periods
Jan 2019 to Dec 2019 (12 month-baseline)
Analysis
Savings Determination
Avoided Energy
Basis of Routine Adjustments
Multi-linear Regression Model
Basis of Non-Routine Adjustments
None Applied
Analysis Methodology
Comparison of predicted energy use and actual usage during reporting periods
Target Uncertainty
As per IPMVP practice, the uncertainty should not be more than 50% of the
reported savings
Reporting Schedule
Year 1
Verified energy savings to end Jul 2023
Savings Information
Total Energy Savings
Consumption
Cost Savings*
GHG Emissions
Savings
Savings*
($)
(kWh)
(tonne.CO2-e)
Year to Date Verified Savings (Aug 22 – Jul 23)
1,444,239
$109,918
307.42
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Total Energy Savings
Consumption
Cost Savings*
GHG Emissions
Savings
Savings*
($)
(kWh)
(tonne.CO2-e)
Total Verified Savings To Date
1,444,239 (+/-
$109,918
307.42
160,935 at 85% CI)
* Note that the savings verification only applies to energy consumption savings (not cost or emissions savings)
The greenhouse gas emission rates were calculated in tonnes of carbon dioxide equivalent, using the Ministry for the
Environment’s emission factors summary: Measuring Emissions: A Guide for Organisations – 2022 Summary of Emission
Factors.
Total Carbon Savings
Emissions for Natural Gas
kg.Co2-eq per kWh
Energy Generation
0.195
Total Emission Factor for Electricity
0.120

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Project Savings Verification
Measurement and Reporting Periods
The baseline period was selected to be calendar year 2019 spanning over 12 months to provide a complete annual gas
consumption profile during normal operation. This was selected mainly to exclude any COVID lockdown periods.
The heat pumps were commissioned on the 19th of July 2022. The savings start date is taken to be 1st of Aug 2022. This report
is a part year report, and a complete year 1 report will be completed in Aug 2023.
Analysis Overview
Adjustments
Routine Baseline Adjustments
None Applied
Non-Routine Baseline Adjustments
None Applied
Data Corrections
None Applied
Valuing Savings
Average variable Gas costs
8.0704 c/kWh
Average Variable Electricity Costs
10c/kWh
Routine Baseline Adjustments
Routine Baseline Adjustments Normal fluctuations in the key factors that influence energy use have been recorded as an
independent variable throughout the reporting period. These data points are applied to the baseline model, as shown below,
to predict energy use under the same conditions prevailing during this reporting period. The following equation describes the
regression model for the total gas consumption for the site’s main incomer:
𝑷𝑴𝑮𝑪 = 𝟑𝟕𝟏, 𝟓𝟓𝟖. 𝟓𝟓 + 𝟎. 𝟎𝟓𝟑𝟔𝟖 ∗ 𝑴𝑷𝑽 − 𝟏𝟑, 𝟑𝟕𝟓. 𝟓𝟓𝟖 ∗ 𝑴𝑨𝑻
PMGC = Predicted Monthly Gas Usage
MPV = Monthly Pool Visits
MAT = Monthly Mean Ambient Temperature (NiWA Station ID 43711)

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Non-Routine Baseline Adjustments
None yet. Changes to any static factors can affect the level of savings achieved by the ECMs which would require non-routine
baseline adjustments.
Observed Data and Energy Savings Analysis
As part of the data analysis carried out, see below the baseline and reporting period. The graph below shows the sum of total
gas main incomer usage and the heat pump submeters.
Gas and heat pump electricity consumption (Jan-19 to Jul-23)
300,000
)
250,000
(kWh
200,000
age
Us  150,000
rgyenE   100,000
ly
th
n
50,000
Mo
-
-19
-19
-19l
-19
-20
-20
-20
-20
-21
-21
-21
-21
-22
-22
-22
-22
-23
-23
-23
p
v-19
l
p
v-20
l
p
v-21
l
p
v-22
l
Jan
Ju
e
o
Ju
e
o
Ju
e
o
Ju
e
o
Ju
Mar
May-19
S
N
Jan
Mar
May-20
S
N
Jan
Mar
May-21
S
N
Jan
Mar
May-22
S
N
Jan
Mar
May-23
Gas Main Incomer (0001393692QT-85E)
Total Heatpumps Electricity Usage (kWh)

In the graph above, we can see the reduction in gas users as the heat pump units were commissioned in July 2022.
*Note that the savings verification only applies to energy consumption savings (not cost or emissions savings)
.

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Appendix A: Baseline Year Observed Data
Month
Gas Main Incomer (0001393692QT-85E)
Jan-19
108,282
Feb-19
125,140
Mar-19
163,415
Apr-19
184,730
May-19
217,663
Jun-19
241,450
Jul-19
242,716
Aug-19
135,267
Sep-19
171,709
Oct-19
135,066
Nov-19
115,701
Dec-19
115,108

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Appendix B: Year1 Observed Data
Date
Gas Main Incomer
Pool Visit
Mean Air
Predicted
Total Heat
Savings
(0001393692QT-85E)
Temperature
Usage
Pump
Usage
(kWh)
Aug-22
55,480
7403
13.5
191385.9
33,178
102,728
Sep-22
22,870
9269
15.2
168747.6
43,418
102,460
Oct-22
15,406
10735
17.7
135387.4
40,100
79,882
Nov-22
15,190
452
19.7
108084.3
31,466
61,428
Dec-22
20,867
823
16.8
146893.4
24,754
101,272
Jan-23
16,844
14704
20.1
103499.1
24,263
62,392
Feb-23
81,114
7586
18.2
128530.6
8,546
38,870
Mar-23
18,170
10200
17.7
135358.7
29,994
87,194
Apr-23
56,075
6676
15.8
160583.1
24,466
80,042
May-23
62,746
4485
12.4
205942.3
28,065
115,131
Jun-23
113,627
7482
12.4
206103.2
25,676
66,800
Jul-23
98,362
7887
10.8
227525.9
30,063
99,101

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