Environmental policy

Stubbins and Energy
Stubbins Marketing is fully committed to using energy in the most environmentally efficient manner. This is for the benefit of both our existing customers and future generations.

Stubbins was an early adopter of Combined Heat and Power (CHP), and now has an installed capacity of 6 megawatts per hour of electricity generated.

We export any surplus electricity generated to the local grid for resale to local schools, communities and businesses. Energy generated locally is very efficient due to the fact that it does not suffer the 70% loss factor suffered by power transmitted over large distances. This means less fossil fuel is used in its generation.

The heat generated by power stations is normally treated as a waste product, to be discharged via cooling towers. However at our nursery sites; this waste heat is used to heat our greenhouses, significantly reducing the amount of energy used in heating these glass structures.

Finally, the exhaust from generation normally vents to the atmosphere. However in Stubbins case, the exhaust is cleaned in Catalytic Converters and then pumped in to the greenhouses. The plants absorb the Carbon dioxide to grow, reducing the Carbon Dioxide emitted into the atmosphere.

The combined benefits of lower power transmission losses, use of waste heat and carbon dioxide recycling, make CHP units the most efficient way to generate power from fossil fuels, reducing the carbon footprint of UK grown produce.

Future projects include the production of Bio Gas from organic waste produced in the nurseries. This is Carbon Neutral when burned and is hence the most environmentally friendly source of fuel.


We also use energy efficient heat exchange units to provide heat to the main packhouse from cold store emissions. 

Stubbins And Hydroponic Growing Systems

Stubbins was one of the first growers in the Lea Valley to grow using Rockwool blocks instead of growing in the soil. This innovation allowed us to both improve both crop quality and crop volumes grown. All of our nurseries now use this growing system.
We also have a policy of recycling waste water, with the aim of eliminating the discharge of nitrates in to the natural environment.

Stubbins And Pest Control

Stubbins have developed natural biological techniques to eliminate pests in our glasshouse's. 

Packaging

We have been adopting the use of returnable crates for our customers, reducing the amount of cardboard boxes that end up in land fill sites.
  Surplus cardboard is removed from the site for re-cycling in line with industry guidelines and general waste is disposed of using compactors.

Local Sourcing

Stubbins is working closely with Supermarkets to enable product to be delivered from its nurseries directly into depots. This reduces the "food miles" travelled, ensuring a fresh product and reduces the environmental impact of the transportation.