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The cornerstone of Stora Enso’s energy efficiency strategy is our global energy target. Our Group-wide target is to reduce our specific electricity and heat consumption per tonne of pulp, paper and board production by 15% by 2020, compared with the baseline year of 2010. In 2014 this indicator was 4% lower than 2010 benchmark level.


​Stora Enso's operations are based on the processing of renewable resources. The most energy intensive phase in Stora Enso's value chain is the production processes of our paper and board products. Mechanical pulp production and paper and board machines particularly consume vast amounts of heat and electricity. It is therefore essential for our success that we have access to a reliable energy supply at reasonable cost. 

Energy procurement and generation

Stora Enso generates steam and electricity internally for use at our production facilities, and we also purchase fuel, electricity and heat from external suppliers. Our energy procurement and generation strategy focuses on our long-term needs.


Existing contracts and our internal electricity generation capacity are estimated to cover around 84% (87% in 2012) of our electricity needs for the next 5 years. In 2013 our total energy self-sufficiency figure increased to 60% (57%).


Energy generated by Stora Enso

In 2013 the share of biomass in our internal energy production decreased slightly to 77% (78%). Pulp and paper production results in by-products such as black liquor, bark, and different kinds of sludge. These materials together with harvesting residues and recovered wood all constitute important biomass

sources for our internal energy generation. In 2013 our electricity self-sufficiency level increased to 39% (36%).



Procurement and partnerships

Stora Enso strives to secure and enhance access to cleaner energy through strategic partnerships with external energy suppliers. In 2013 some 82% (81%) of our purchased electricity was generated from low-carbon sources including nuclear energy and renewable energy.


Our approach to energy procurement and energy generation is described in detail in our Energy Guidelines, which are available at:

Energy efficiency makes economic sense

Energy efficiency is a top priority for Stora Enso. Energy accounted for 13% (13%) of Stora Enso's raw material and service costs in 2013. Our energy consumption is also the greatest source of our CO2 emissions, so improving our energy efficiency is a vital way to reduce our climate impact.


Stora Enso's energy supply is managed utilising long-term contracts, direct market access through energy exchanges, efficient combined heat and power production, and partnerships with competitive power generators. We strive to minimise the impacts of energy price volatility by using a portfolio approach in combination with hedging as necessary.



An ambitious energy efficiency strategy

Stora Enso follows a structured approach to energy management, which is implemented by Stora Enso's energy services function.


The cornerstone of our energy efficiency strategy is our global energy target. Our Group-wide target is to reduce our specific electricity and heat consumption per tonne of pulp, paper and board production by 15% by 2020 compared with the baseline year of 2010. In 2013 this indicator was 3% lower than 2010

benchmark level.


To help us reach our target we have set up an internal team of energy efficiency specialists, an Energy Forum Network, various topic specific energy campaigns and a centralised energy efficiency fund. These measures are discussed in more detail below.

Managing energy efficiency

Stora Enso's Energy Services function is responsible for procuring energy, including fossil fuels, and hedging with regard to energy prices, as well as the trading of green certificates and the monitoring of emission trading trends. The team also ensures that our energy efficiency strategy is duly implemented.


The Energy Services function is headed by the Vice President, Energy Services. Its energy efficiency manager is responsible for coordinating and steering our energy efficiency work and promoting the spread of related information. Stora Enso's internal team of energy efficiency specialists help our mills to find and exploit opportunities to save energy.


While the Energy Services function plays an important role by helping mills find ways to optimise their energy use, the mills themselves usually have the best understanding of their processes and the technological requirements for their products. Our mills are therefore ultimately responsible for optimising and rethinking their existing processes so as to maximise their own energy efficiency. The energy efficiency work done at our mills is guided by our internal tools and certified environmental and energy management systems. For a comprehensive list of our certificates see


In 2013 the Group's Internal Audit function evaluated the effectiveness and efficiency of Stora Enso's energy management. The resulting audit report concluded that our energy organisation is focused and well anchored in our business operations. Our energy organisation was also commended for cultivating a

performance-based culture and adopting an open approach to communications. The report recommended that the sharing of knowhow and best practices should be improved.


In 2013 we conducted basic energy audits at eleven mills and follow-up audits at nine mills.



Energy forums

To further improve our energy efficiency we have created a network of forums for the largest production units among our Nordic and Continental European pulp, paper and board mills. The fourth forum for our chemical pulp production was introduced in 2013. These forums work together systematically to share best practices and to find ways to improve energy efficiency with regard to targets set for each business area.



Energy efficiency fund

Another cornerstone of our energy work is our centralised energy efficiency investment fund. In 2013, this fund amounted to 10 million euros available for allocation to energy saving investments on an annual basis. The fund was set up in 2008 to support our mills' energy efficiency projects. It was used to support 38 projects during 2013. These projects should generate total energy reductions amounting to at least 223 000 MWh per year (92 000 MWh electricity and 131 000 MWh heat) when in full effect. These figures are equivalent to 0.6% of our annual electricity consumption and 0.4% of our annual heat consumption.



Major investments to improve energy efficiency

In 2013 Stora Enso decided to invest EUR 13.5 million to replace oil with dried sawdust at our Enocell Mill. This investment will enable us to replace over 85% of the fossil fuels used at Enocell with biomass. This is expected to reduce the mill's annual fossil carbon dioxide emissions by 30 000 tonnes and energy costs by EUR 5 million. This project is due to be finalised by the end of 2014.


In 2013 Stora Enso also decided to invest EUR 32 million in building a state-of-the-art biorefinery at Sunila Mill in Finland. The biorefinery will reduce the mill's CO2 emissions by replacing up to 90% of the natural gas used at the mill with lignin extracted from black liquor.