Conservation in Action 2025 (EXTERNAL SHARE) - Flipbook - Page 68
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42 tonnes fewer carbon emissions than 2023
We annually calculate our carbon emissions from scope 1 and 2 direct and indirect emissions, allowing
us to monitor and assess key areas to target for reduction and change. Carbon emissions are calculated
using the online carbon footprint tool and provided standardised values per item, for example 1,000 Kwh
electricity = 0.27 tonnes of carbon, 1,000 litres of LPG = 1.74 tonnes of carbon. In 2025 we saw a reduction
of 0.75% compared to 2024, with overall tonnes of carbon produced at 1,456 compared to 1,487. This is a
further reduction from 1,498 in 2023, and results from a combination of changes across heating, lighting,
and fuel provision across our zoo site.
In 2025 we saw a 16% reduction in the use of LPG (liquid propane gas) at
the zoo, following the installation of electric heaters in our tropical butterfly
habitat, amongst other things.
However, we did see an increase in electric use, as a result of Lique昀椀ed Petroleum Gas (LPG) reduction
measures, and the delivery of our Lanterns of the Wild evening event. From the 1st September 2025,
the majority of the zoo’s electrical supplies were changed from a general contract, to a 100% renewable
contract, that only supplies wind, solar and hydro generated electricity. For 2025, having the monthly
data for the main intake, we have averaged the tonnes of carbon, of the three generation types, and
applied an equal share of each as a new benchmark, to incorporate the change from the general 0.27
tonnes of carbon benchmark for electric from carbonfootprint.com. Applying this to the four months
under our new electricity provider, to the zoo’s main intake alone, this delivers a further 32.69% (248
Tco2) reduction on the whole year.
Across the site, our partners Wates are installing low energy Light-emitting Diode (LED) lighting 昀椀tted with
timer and Passive Infra-red (PIR) control systems to minimise unnecessary energy use, replacing older
昀氀uorescent tubes and halogen 昀椀ttings with modern, e昀케cient LED units. Where possible we will continue
to install new IR heating systems within animal enclosures to improve e昀케ciency, replacing traditional
element-based heaters with Infra-red (IR) units that o昀昀er up to 60% improved energy e昀케ciency. In
addition, older water heaters are being replaced with more energy e昀케cient models throughout the zoo,
contributing to a sustained reduction in electricity consumption.
2025 split of
electricity sources
