Decarbonising our business


Reducing our business carbon footprint


-%

Total NGN greenhouse gas emissions reduction between 2021/22 and 2022/23

The Covid-19 pandemic temporarily reduced our greenhouse gas emissions during 2020/21 and 2021/22 as our business travel habits changed and energy consumption fell. Excluding gas leakage, our Scope 1 and 2 business carbon footprint has stabilised and was 22% below our pre-COVID value from 2019/20, but 6.6% greater than 2022/23 and 13% over our annual target.

We purchase only certified renewable electricity for our premises, and are transforming our company car fleet so it now comprises 97% electric or hybrid vehicles in readiness for our 2026 target of 100%. We're also helping our colleagues make low carbon choices for their own cars.


%

Electric or hybrid company car fleet in readiness for our 2026 target of 100%

The main influences on our Scope 1 and 2 business carbon footprint are the external constraints we have experienced with delayed delivery of 200 new diesel vehicles ordered in the last two years, and the limited availability of suitable zero emission vans. We continue to work to decarbonise our van fleet.

We also measure the greenhouse gas emissions from our supply chain (‘Scope 3’). Our key Scope 3 emissions were stable between 2021/22 and 2022/23 and 1.4% over our annual target.

To compensate for our 2022/23 Scope 1, 2 and 3 business carbon footprint exceeding our annual target we voluntarily purchased certified carbon offsets to ensure our net emissions met our target.

See table below - NGN greenhouse gas emissions

Case Study

Enabling our colleagues to drive down their emissions

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NGN greenhouse gas emissions

tCO2
19/20 - actual
20/21 - actual
21/22 - actual
22/23 - actual
22/23 - target
Scope 1 - gas shrinkage
380,109
368,190
363,344
328,250
337,593
Scope 1 - other
5,290
4,518
4,785
5,099
(*4,527)
4,527
Scope 2
(market based)
1,211
1,019
0
0
369
Scope 3 (key)
15,793
15,150
15,200
15,233
(*15,030)
15,030
Scope 3 (total)
As above
As above
22,406
21,630
n/a
Total (market based)
402,403
388,877
390,535
354,980 (*354,205)
n/a

* net emissions after purchase of certified carbon offsets​

Waste, resources and sustainable procurement

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