2015 Corporate Responsibility report > Environmental Resilience
Nesher's investment in environmental protection and its high operational efficiency are reflected in the Company's environmental performance, which are in line with that of the most advanced cement producers worldwide.
Air Quality – Performance Comparison
Gram per ton of clinker
Greenhouse gas emissions – Performance Comparison
Nesher’s environmental policy is based on the principles of the industrial ecology approach.
Environmental performance with regard to greenhouse gas emissions is measured both based on the normalization per tonne of clinker, and per tonne of cement (equivalent) and tonne of cementitious materials. Nesher is one of the world’s leading companies with regard to performance measured according to clinker production, which indicates the highest level of energy efficiency.
This level is expected to improve in the coming years with the use of alternative fuels, including biomass components (that are neutral as regards greenhouse gas emissions). Since the Israeli concrete industry demands cement with a high clinker content compared to Europe, greenhouse gas emission levels from a tonne of cement or of cementitious material are slightly higher than the European level. Nesher, together with its customers, are working on ways to gradually reduce the clinker content in its products.
The production of clinker, an essential stage in cement manufacturing, has significant environmental impacts: greenhouse gases are emitted both from the process itself, and from the high energy consumption the process requires. Approximately 60% of greenhouse gas emissions derive from the processes involved in converting limestone to clinker while 30% derive from other greenhouse gas emissions from fuel combustion. The remaining 10% of greenhouse gas emissions derive from electricity consumption required for the process of moving and grinding of raw materials and the finished products.
The cement industry worldwide, therefore, measures its performance according clinker-based performance indicators, and in this regard Nesher is one of the global leaders in environmental performance. Nesher continues to enhance the production process efficiency and strives to increase the use of alternative fuels as an additional means of reducing greenhouse gas emissions.
Nesher set itself a goal to increase the Company's use of alternative fuels, in an effort to reach a level of 20% of the fuel mix in 2016. To that end, the Company invests in the implementation of technological solutions that allow the use of such fuels, such as the RDF project.RDF project
As an alternative means for reducing greenhouse gas emissions, the cement industry is striving to find technological solutions that allow the use of alternative materials for the production of cement, such as by-products of various industries and cement with reduced-clinker content – with no impact on product quality. (European standards allow the production of various types of cement, with different strength and composition.) The types of reduced-clinker cement produced by Nesher include slag cement and AL cement. Nesher has set itself an internal goal to reach an average clinker content of 70% by 2025 (compared to the current 80.2%.)