ISO/PAS 50010:2023

PUBLICLY ISO/PAS
AVAILABLE 50010
SPECIFICATION
First edition
2023-01
Energy management and energy
savings — Guidance for net zero
energy in operations using an
ISO 50001 energy management
system
Management de l'énergie et économies d'énergie —
Recommandations pour zéro énergie nette dans le cadre des
opérations utilisant un système de management de l'énergie
ISO 50001
Reference number
© ISO 2023
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Terms related to net zero . 1
3.2 Terms related to net zero energy operation . 3
4 EnMS implementation for NZE .5
4.1 General . 5
4.2 Scope and boundaries for NZE . 5
4.3 NZE plans . 7
4.3.1 General . 7
4.3.2 NZE policy as part of an organization’s energy plan . 8
4.4 Defining the energy or carbon-emission goals . 9
4.4.1 General . 9
4.4.2 Energy management system . 9
4.4.3 Renewable energy . 10
4.5 Selecting zero energy performance indicators . 11
4.6 Defining future-year goals . 13
4.7 Data collection plan . 14
4.8 Planning to account year to year variability . 15
5 Improving organization operation and maintenance for NZE or NZC .15
5.1 General . 15
5.2 Effective operation and maintenance . 15
5.3 Control technology . 16
6 Integration of renewable energy .16
6.1 Consideration of renewable off-site energy . 16
6.1.1 General . 16
6.1.2 Renewable resources acquired by the organization . 17
6.1.3 Renewable energy resources on the grid . 17
6.2 Utilizing energy provider inducements to change energy use — Demand response . 17
6.3 Renewable grid connection . 18
Annex A (informative) Relationship between NZE design, construction and operation .19
Annex B (informative) NZE overview for implementation .20
Bibliography .26
iii
Foreword
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This document was prepared by Technical Committee ISO/TC 301, Energy management and energy
savings.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
0.1  General
This document shows how an organization that manages its energy performance can use that process
to achieve net zero energy (NZE). It explains what is meant by NZE and how an energy management
system (EnMS) in accordance with ISO 50001:2018 can be implemented to achieve, maintain and
improve NZE. It also considers the integration of renewable energy and issues around planning for NZE
in new and retrofitted facilities which is beyond the scope of ISO 50001. In addition, it is designed to
complement organizational action to achieve net zero carbon (NZC).
This document introduces several new concepts to the determination of whether a facility meets the
criteria it recommends for showing that it meets NZE or NZC goals. Many jurisdictions use the two
terms interchangeably, and others promote one goal over the other as discrete choices. This document
attempts to reconcile these definitions. It distinguishes between several different scopes and boundaries
for these different net zero goals and their targets, which are increasingly effective at reducing energy
and greenhouse gas (GHG) emissions, and correspondingly more difficult to achieve. It suggests that an
EnMS be structured to allow continual improvement from lower targets to higher ones.
A number of countries around the world have pledged to achieve a net zero goal, and many more have
[17]
committed to significant energy savings and carbon reductions in their societies. Meeting these
commitments over the coming decades requires accelerated improvements in energy management.
Many organizations are undertaking specific actions to reduce their carbon emissions by better
management of energy, including targeting NZE. These actions may include:
— measuring, managing and minimizing energy use to achieve NZE through operations;
— designing and constructing new buildings or other facilities to meet a target of NZE;
— retrofitting existing buildings to improve their performance toward or beyond NZE;
— integration of renewable energy, e.g. photovoltaics (PVs), solar water heating, geothermal energy,
on-site wind turbines;
— coordinating robust energy management with other sustainability initiatives, to achieve or surpass
NZC.
This document shows how an EnMS can include objectives such as specified levels of NZE and NZC.
The EnMS conforms to ISO 50001:2018. This document recommends establishing specific, quantifiable
targets for energy consumption that can serve as a pathway to NZE. Use of this document should enable
closer harmonization of claims of NZE within and between organizations, and across regions and
nations.
By following the standardized approach provided, the organization can take advantage of common
resources (e.g. software) to produce reliable and documentable processes and results, and of the basic
structure this document provides in developing its own management system.
This document provides flexibility for organizations to determine their own scope, boundaries
and calculation methodology for calculating net energy consumption, and for setting a pathway
towards NZE. It does not discuss how to measure non-energy-related GHG impacts; for these, see
ISO 14064-2:2019 and ISO 14067:2018.
This document recognizes that energy targets and calculation methods are chosen by the organization
to be specific to its situation and can be determined outside the organization (e.g. by governments
or consequent upon a GHG-calculation methodology). For situations when the measurement and
calculations are developed by the organization itself, this document includes a high-level set of
recommendations based on global best practice.
v
0.2  NZE goals are being increasingly adopted
NZE is a key indicator for an organization wishing to demonstrate leadership in energy management
and sustainable development. It is applicable for buildings, industries and other sectors. It may also be
measured at the organizational, district or city level. The buildings sector has been the first to accept
NZE concepts widely, but there are also NZE industrial facilities. To achieve NZE goals, buildings can
use mandatory NZE codes. Meeting challenging targets requires industry to consider residual energy
[14]
use.
The global market for NZE buildings and industries is exhibiting rapid compound annual growth,
spurred on in part by legislation or pledges at the local, national or supranational level (see, for example,
[13]
EU Directive 2018/844 ).
However, if these ambitious targets are to be met, a wide range of users including, but not limited
to, energy service providers, building occupants, industrial managers, energy efficiency experts and
government agencies require a common understanding of NZE and the use of standardized processes
(such as those provided by this document) for targe
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