Porvair plc Annual Report & Accounts 2023
Strategic report
38
ESG report
continued
ENVIRONMENTAL
|
Social | Governance
Greenhouse gas emissions
The Group has implemented the UK
Government’s guidance on measuring and
reporting greenhouse gas emissions, in line
with DEFRA guidelines, using conversion units
published by the Carbon Trust. The Group
reports ‘Scope 1 and 2’ emissions in tonnes
of carbon dioxide. Scope 1 covers direct
emissions that emanate directly from Group
operations. This is principally natural gas
burned in manufacturing and fuel used in
company owned vehicles. Scope 2 covers
indirect emissions, those generated by key
suppliers, principally electricity.
The Group used 76.1 million (2022: 74.1
million) kWhr of energy in the year. 6.0 million
(2022: 6.7 million) kWhr was used in the UK.
Gross emissions of 18,874tCO
2
(2022: 18,660
tCO
2
) are 1% higher than the prior year, all
accounted for by the acquisitions in the year.
The Metal Melt Quality division accounts
for 73% (2022:71%) of Group emissions.
Its emissions increased by 4% in line with the
increase in revenue.
The Laboratory division’s emissions reduced by
2%. The acquisition of Ratiolab accounted for
7% of the emissions. The like for like operations
reduced their gross emissions by 9%, largely
as a result of lower production in 2023.
The Aerospace & Industrial division’s emissions
reduced by 9% compared with a 7% increase
in revenue. The benefits of investment in new
and more productive equipment has helped
to reduce emissions.
The Metal Melt Quality division runs gas
powered furnaces to fire its ceramic filters.
The gas to run these furnaces is the largest
component of the Group’s emissions. Electricity
provides heat, light and power for the Group’s
premises and other plant and equipment.
The plant and equipment is mainly light
manufacturing equipment but does include
some high pressure presses and electric
furnaces.
Group CO
2
emissions were highest in 2018
at 20.7 ktCO
2
and are 10% lower in 2023 at
18.9 ktCO
2
. In that five year period, Group
revenue has increased by 37%.
2010 is used as a base year and ‘kilogrammes
of CO
2
emission per pound sterling of revenue’
as a measure of intensity. The intensity ratio in
2023 was 52% lower than 2010. The Group
set a target in 2020 to reduce its total intensity
ratio by 10% between 2020 and 2025. In
2022, its intensity ratio was 22% lower than
2020 and the Board has set a further target to
reduce carbon intensity by 10% from the 2022
base by 2025. 2023 intensity reduced by 1%.
Energy Saving Opportunity Scheme
(“ESOS”)
The UK Government established ESOS to
implement Article 8 (4-6) of the EU Energy
Efficiency Directive (2012/27/EU). ESOS is
the mandatory energy assessment scheme
for larger organisations in the UK meeting
the qualification criteria. The Environment
Agency (“EA”) is the UK scheme administrator.
Porvair has completed two full EA audits.
Porvair is required to carry out further ESOS
assessments every 4 years. Reports by the
auditors will incorporate recommendations
identifying opportunities for cost saving
energy measures.
REACH
The first significant impacts of REACH (the
European Union regulation concerning
the Registration, Evaluation, Authorisation
& restriction of Chemicals) have had an impact
on some Porvair processes.
Trichloroethylene and chromium trioxide
appear on the ECHA Annex XIV list of products
that have been banned unless specifically
authorised for use. To replace chromium
trioxide, used in Alocrom 1200, Porvair
Filtration Group’s Segensworth plant designs
new products using a replacement treatment
(SURTEC). For existing products, it has joined
an aerospace group which has special
dispensation to continue to use Alocrom 1200
on existing products. Air and manual handling
procedures for the use of Alocrom 1200 have
been significantly improved.
The Metal Melt Quality division keeps
under review its use of boric acid, which is
a substance named in the Candidate List
of the REACH regulations, to ensure that it
meets its REACH reporting obligations on
filters shipped into the EU.
Waste
The Board monitors waste disposal and
recycling volumes. The Board uses categories
of waste set out in ISO 14001: 2015,
Environmental Management Systems, to
categorise its solid and liquid waste. The
Board expects that a focus on the treatment
of waste will lead to reductions in waste and
an increase in recycling.
Water
The Group’s operations are not large users of
water. Total Group consumption of water in
2023 was 55 million litres (2022: 55 million
litres). 50% (2022: 52%) of the Group’s water
usage occurs in the Aerospace & Industrial
division, where the sintering furnaces use
significant amounts of water in their cooling
systems. Installation of a closed loop chiller
system to cool our US based sintering furnaces
began in 2023 and should commission in 2024.
Once installed and operational this should
significantly reduce the Aerospace & Industrial
division’s water usage. 42% (2022: 41%) of
the usage arises in the Metal Melt Quality
division, where water is a key component of
the ceramic slurry used to make ceramic filters.
The Metal Melt Quality division uses water
recovery systems and waste water filtration to
minimise its usage and to return only clean
water to the waste water system.
Case study
Reducing resource usage and
waste streams
All of our management teams are
incentivised to implement sound ESG
initiatives. In addition to reducing our
carbon emissions, we look to make less
use of landfill. Some of our waste lends
itself to recycling and some to composting.
We aim to reduce our use of water by
using closed loop systems where we can.
Installation of a closed loop chiller system
to cool our US based sintering furnaces
began in 2023 and should commission in
2024. Once installed and operational this
should significantly reduce the Aerospace
& Industrial division’s water usage.
Total Group water consumption
55 million
litres
Total Group consumption of water in 2023 was
55 million litres (2022: 55 million litres).
Water usage
50%
50% of the Group’s water usage occurs
in the Aerospace & Industrial division.
Waste management
ISO 14001
:
2015
The Board uses categories of waste set out in ISO
14001: 2015, Environment Management Systems,
to categorise its solid and liquid waste.