Save money on waste 

New economic model finds cheapest way to dispose of waste.
There is money to be made by disposing of waste in the right way. This is shown by a new economic model which sheds light on the consequences of liberalising the waste sector.

While the analysis does not directly recommend full-scale liberalisation of the waste sector, the model can be used to optimise the flow of waste and thus improve operating finances – for incineration and storage alike.

Simulates the flow of waste

The model, developed by COWI for the Danish Environmental Protection Agency, simulates the flow of waste between Denmark’s municipalities and selected Danish incineration and storage facilities over the next 20 years.

The recently completed project indicates that the sector as a whole could save almost DKK 100 million by concentrating waste in fewer, larger storage facilities and transporting waste over longer distances.

A similar amount could be saved on incineration, although liberalisation will likely result in other costs. This suggests that savings on incineration could probably be achieved through better planning.

Sizeable operating costs

"Denmark has a well-run waste sector," says Mikkel T. Kromann, the man behind COWI's model calculations, "but there are still savings to be made. Operating costs at waste facilities are so high that as a rule it will pay to transport the waste in lorries to larger waste facilities, regardless of whether or not the market is liberalised. This will also result in the customer paying less for waste disposal."

A free market

The aim of the project is to determine the organisational, economic and environmental consequences that would follow in the wake of a free market.

The centrepiece of the tool is a model known as Swahili (simulating waste handling in liberalisation), which takes into consideration transport and operating costs and in the longer term the construction of new facilities.

Increased focus on costs

COWI has also used the model for several waste storage companies on Zealand who wanted to know if it would pay them to expand their storage facilities.

And there are also opportunities to use the model abroad, for instance in Eastern Europe, where many incineration facilities do not produce electric power or district heating.

Adds Mikkel T. Kromann: "Until now the waste sector has been organised according to the principle of cost recovery. But with increasing political interest in waste markets, costs are set to assume a key role in the decision-making process. And this will increasingly be the way of things in the future."

By Christina Tækker, cht@cowi.com
Published: 27.10.2004