Good Practice and Case Studies

• About Good Practice and Case Studies
• Good Practices (GPs) from the SETatWork Project
• How Case Studies were submitted

Case Study examples involving companies governed by the EU ETS, including CDM and JI projects, have been added to this website and promoted at SETatWork events during the project period (September 2009 - October 2010), which has now ended.

The best Case Studies have been selected as Good Practice (GP). These are completed projects that have realised CO₂ reductions. The GPs enable companies and other organisations to further promote their Sustainable Energy projects. They also act as a reference when searching for partners and ideas for your projects.

SETatWork and T@W Good Practices have also been incorporated into the Case Studies Search section of the SETatWork database (which will open in a separate window/browser tab). Case studies in the database are linked to the organisations involved in the project. This should assist users of this site in their search for suitable partners and Good Examples for future Sustainable Energy and Energy Efficiency projects.

For convenience, Good Practices identified during the SETatWork project are listed below:

• Good Practice Case Studies (GPs) from the SETatWork Project
• Walking the Talk - Industrial Carbon-saving Initiatives in Southern Denmark

Project Ideas from the SETatWork and T@W Projects can be found in the Partner Search section of the SETatWork Database

Listed below you will find all the Good Practice case studies produced by SETatWork during the course of the project.

In addition, all Good Practices from this and the previous T@W Project can be found in the Case Studies search section of the SETatWork database.

A variable-frequency drive is an electronic controller that adjusts the speed of an electric motor by modulating the power being delivered; it provides continuous control, matching motor speed to the specific demands of the work being performed. Variable-frequency drives are an excellent choice for adjustable-speed drive users because they allow operators to fine-tune processes while reducing costs for energy and equipment maintenance. More...

To comply with national energy polices for energy saving and environmental protection, use of natural gas becomes a way to optimise energy mix, increase energy efficiency and reduce pollutant emission in China. In order to promote advanced energy technology and develop methods of rationally use of natural gas in Chinese, the project of natural gas fuelled trigeneration system was approved by Beijing Gas Group and to be built in the Dispatch Centre of the Group, to meet the demand on electricity and cooling/heating in the building. More...

The cement sector is one of the most energy intensive industries. The calcination process of clinker is the most energy intensive in cement production, because waste gases with temperature lower than 400 °C was emitted from the clinker cooler and pre-heater respectively at the kiln head and tail, the heat losses accounted for more than 30% of thermal consumption for clinker production, which meant large amount of energy was wasted. To recover the waste heat for power generation will reduce both energy consumption for cement, particularly including electricity or fuel consumption for in-house power station, and pollutant emission such as CO₂ and SO₂ and dust, while the phenomenon of “hot island” was avoided near the cement plant. More...

The objective of this project was the reduction of emissions to the atmosphere.
    The new installation for biomass co-firing has been put into operation in June 2009. It is integrated with two lignite fired fluidized bed boilers. This investment is PGE's another project resulting in reduction of emissions to atmosphere. More...

The investment was voluntary action of the company but influenced by EU/national regulations.
    The project resulted in significant environmental (e.g. lower CO₂ emissions), economic (e.g. power savings) and social (e.g. image improvement) benefits. Calculation of CO₂ emissions reduction is based on chemical energy consumption during heat generation process. Average annual chemical energy (for 8 years of CCU exploitation) is on the level of 10.042.614 GJ. More...

The new heat and power cogeneration unit in Kielce CHP has been put into operation in December 2008. The unit consist of separated coal and biomass boilers and following devices: steam boiler OR 50, fuel: coal, steam production: 50 t/h; steam boiler OR 50, fuel: biomass, steam production 20 t/h; back-pressure turbine set, installed capacity: 10,5 MWe,
additionally heat station: 30 MWt.
     Two separated steam boilers are working on one turbine. Applied technology is using BFU (BI-FUEL UNIT) technology. The new unit in Kielce CHP is very unique and the first one in Poland that enables to burn coal and biomass (energetic willow, wood chips) separately. More...

The objective of this project was to switch off two back-pressure turbine sets (T4, T5) integrated with combined cycle unit and to replace them by more efficient pass-out and condensing turbine (T6). Furthermore it is noteworthy that T6 turbine was primary integrated with high emissive coal fired boiler that has been shut down. More...

The objective of this project was the construction of a heating station together with heat transmission network, biomass (wood waste) fueled for production of hot water (115/70ºC) for space heating and domestic hot water preparation for industrial sites, administrative and dwelling buildings, hotels. More...

The objective of the project was to carry out a renovation of district heating station implementing a CHP unit based on internal combustion engine fuelled by natural gas.
    The project was executed in DHC Vratsa, Bulgaria. It included instillation of a CHP unit based on reciprocating gas engine Wartsila 16V25SG plus generator. There are two gas engines + generators + bolier-utilisators installed with the overall capacity of 12,1 MW of which 6 MW electrical capacity. More...

The objective of the project was to carry out a renovation of district heating station implementing a CHP unit based on internal combustion engine fuelled by natural gas.
    The project was executed in DHC Burgas, Bulgaria. It included instillation of a CHP unit based on reciprocating gas engine Wartsila 16V25SG plus generator. There are six gas engines + generators + bolier-utilisators installed with the overall capacity of 37 MW of which 18 MW electrical capacity. More...

The objective of this project to carry out a renovation of district heating station implementing a CHP unit based on a gas turbine.
    The project was executed in DHC Pleven, Bulgaria. It included instillation of a gas turbine and boiler-utilisator, after which the produced steam is fed to the existing main steam collector and feeds the respective steam turbine. A heat exchanger is installed at the outlet of the bolier-utilisator to utilize the heat of exhaust gases using water as a heat carrier. The overall capacity of the unit is 108 MW of which 32 MW electrical capacity. More...

The implementation of this plan will allow an energy saving of approximately 1,792 thousand tonnes of oil equivalent (toe) in 2015, which corresponds to savings of 9.8% in comparison with the reference period defined in the European Directive. More...

Download SGP26 (458 Kb PDF) - 1995-98

Tri-generation system that uses natural gas to produce electricity, heat and cool, in order to cover all the thermal necessities of several buildings suited in “Parque das Nações”, namely buildings cooling and heating and water heating. More...

Hi-Tech Carbon (HTC) is a unit of Aditya Birla Nuvo Ltd., a flagship company in the fold of Aditya Birla Group of companies. HTC manufacturs Carbon Black from highly aromatic petroleum oils, which are thermally cracked at high temperature in specially designed reactors.
    In the project activity, low calorific value waste gas coming out of new carbon black lines (line 2 & 3 of capacities 55,000 & 60,000 Tonnes/year respectively) is utilized in 52 and 70 TPH (B 2 & B 3) boilers respectively, specially designed to generate high pressure steam. This high pressure steam in turn drives the turbo-generators (TGs) of capacity 8 MW and 17.2 MW (TG 3 & 4 respectively) to generate power. The project activity displaces electricity from grid connected fossil fuel based power plants connected to southern regional grid. Thereby, the project activity reduces approximately 87,305 tCO₂e/year. More...

The objective of this project was the upgrade of existing plant equipment through the use of new technology alternatives, retrofits, new design and waste heat recovery in order to reduce the Specific Steam Consumption Ratio (SSCR) of the Ammonia plant of Urea fertilizer units. Following process profile analysis of their Ammonia Urea fertilizer operations, IFFCO plans to upgrade their existing plants in three separate site locations with specific energy saving process technologies. 8 specific technologies are to be employed throughout the three plants that ultimately will contribute to a reduction in Specific Steam Consumption Ratio (SSCR), thereby reducing overall plant specific steam consumption of the plant, hence resulting in a reduction in the fossil fuel requirement which is fed to the boilers. More...

Installation of solar thermal panels in the roof of the Head Office of Caixa Geral de Depósitos (Public Bank) in Lisbon, in order to cover the thermal energy needs of the building.
    This is the biggest solar thermal central of Portugal, and one of the biggest installed in a roof in Europe. More...

LANXESS operates an adipic acid production plant at the industrial park in Krefeld-Uerdingen, Germany. Adipic acid production exists in Uerdingen since 1953 and the current installation is running since 1987. Adipic acid is used primarily as the main constituent for nylon production and is also used as carrier for fragrances, for the treatment of leather, in coatings, synthetic lubricants and fibres, photo chemicals, plastics and more. More...

Levice Combined Cycle Power Plant (CCPP) 80MW was commissioned in September 2007 in Levice, Slovak republic. Owner of this plant is Slovintegra Energy, s.r.o. being a 100 % daughter company of the Slovakian international investment company Slovintegra, a.s. It was established as a new company mainly for the Levice power plant. Slovintegra Energy focuses on production, distribution and sales of electric energy for the energy system. It also produces, distributes and sells steam-based heat and hot water supplies for companies operating in the area of Levice Industrial Park, and distributes heat to the town of Levice. The activities also include supporting services in the form of primary, secondary and tertiary regulations of the output capacity and supplies of regulation electric power for Slovenska Elektrizacna Prenosova Sustava, a.s., a company in charge of transmitting electricity throughout the whole territory of Slovakia and ensuring electricity transmission from power plants to the distribution network and major customers connected to the 220 kV and 400 kV grids. More...

Industrial excess heat is generated as a result of the industrial production processes such as refining. Some of the primary energy needed to run a production process is not consumed and must be cooled away if the process is to work. Traditionally the excess heat has been cooled away to the ambient air and/or water and is wasted. Using waste heat from industry in a local district heating network is a way of covering some of society’s heat demand without causing any additional greenhouse gas emissions. More...

The 1 July 2004 the tax on electricity for the processing industry in Sweden was raised from 0 to 0.5 öre/kWh (0.50 Euro/Mwh). However, by participating in a program for energy efficiency, companies can get exempted from the tax. Swedish companies belonging to energy intensive industries can therefore apply to the PFE program which is five years long. Work must be performed in a structured manner and measures should be taken to increase energy efficiency. The objective of the program is to contribute to an economically and environmentally sustainable energy system in which the industry has a central role. Through the program companies lower their energy cost, the employees gain knowledge about energy efficiency and the environmental impacts are reduced. More...

A new evaporation plant will replace the three existing evaporation lines and will improve energy efficiency at Värö mill. The evaporation plant is an important part of the pulp mill’s recovery process. The mill will also be equipped with a bark dryer which will transform the bark surplus to high-grade biofuel. Through this investment, bark with an energy content of 200 GWh/year will become available for sale, which corresponds to a reduction of fossil carbon dioxide emissions by 75,000 tons per year. The investment will boost energy efficiency, make the mill virtually independent from fossil energy and enhance productivity. More...

There are many good wind sites on land belonging to Södra members and at Södra mills. Södra is therefore investing in electricity production from wind turbines. The first wind power plant is now being built at one of Södra’s pulpmills. Turbines will thereafter be built on other industrial sites and on members’ forest holdings in Götaland. The objective is to realize as many profitable wind power projects as possible on Södra members’ lands. More...

As the first refinery in the world Preemraff Göteborg shifts its production so that biomass from the Swedish Forests will be refined to diesel. Preemraff Göteborg is retrofitted at a cost of 280 million SEK and will 2010 refine 100 000 tons of biomass to diesel. The adjustment makes it possible to refine not only crude oil, but also different kinds of raw material such as vegetable oils and animal fat to high-quality diesel fuels. Preem will primarily use wood based raw material in the purpose of not competing with the food industry. More...

Norrmejerier’s management unit Ersboda dairy plant produces milk, sour milk, yoghurt, cream, butter, cheese and milk powder. Norrmejerier wanted to increase its production of cheese which also would increase emissions in the wastewater. Since the municipal wastewater treatment plant did not allow increased emissions Norrmejerier was forced to seek alternative sewage cleaning. It was found that the Biotrans project would solve the problems with the wastewater and also reduce the energy need.      The Biotrans project includes: A biogas plant (anaerobic) to convert the wastewater into an energy source; A heat pump to recuperate heat in the wastewater after the biogas plant; An ultra-filtration plant for extraction of high-grade whey protein. Changes in production, mainly increased cheese production. More...

By paying an eco bonus, the program of activities (PoA) encourages commercial and industrial customers to convert the existing heating systems running with fuel oil, coal or liquid gas to natural gas-fuelled heating systems.
    The aim of the project is to reduce the GHG emissions by conversion to natural gas-fuelled boilers and direct heating systems as well as by the subsequent increase in efficiency. This leads to replacement of older, more emission intensive heating systems in favour of more environmentally friendly heating systems with natural gas-fuelled boilers and direct heating systems. More...

MEGTEC Systems AB (MEGTEC), a company based in Swedish Gothenburg, announces the first power plant in the world to use MEGTEC's innovative technology to generate electrical power by using extremely dilute coal mine Ventilation Air Methane (VAM) as primary fuel. The power plant is since April 2007 in full operation in Australia at the West Cliff Colliery of BHP Billiton (NYSE:BHP), the world's largest diversified mining and resources company.
     The system is based on a patented combination of emission control and steam-cycle technologies. The solution is developed by MEGTEC, supplier of air emission abatement equipment and energy systems worldwide. The world's first VAM Power Plant was partly funded by the Australian Greenhouse Office. More...

In total, AIT consumes about 13,000 MWh/year of electricity (on an average from 2003 to 2007) which leads to about 9,300 tons/year of CO₂ emission at power generation. SERD consists of 6 buildings which consume about 1,000 MWh/year which leads to about 720 tons of CO₂ emission in 2007. The Energy building consumes about 120 MWh/year and generates about 86.4 tons of CO₂/year. Lighting consumes about 38% and 27% of the total electricity consumption during weekday and weekend, respectively.
    Many of the existing lighting fixtures at the Energy Building were equipped with T8 (36 W) lamps with magnetic ballasts and covered with gloomy covers which reduce amount of illuminance on the working space. The measured illuminance of the existing T8 fixtures in 5 selected rooms was in a range of 148-380 lux which is lower than standard of 300-500 lux. T5 (28 W) lamps with electronic ballasts and reflectors were selected to replace the existing fixtures. T5 lamp with electronic ballast consumes about 31 W or about 32% saving as compared to 46 W of T8 with magnetic ballast.
     Adaptors can be used to fit T5 into the existing T8 fixtures or use new reflectors. As the existing fixtures gave low illuminance, therefore, high efficiency reflectors (95% reflectance) were bought which can be fitted with T5 without using adaptors. Each reflector can hold two T5 lamps. More...

Phyathai hospital is located in Sriracha town, Chonburi province, about 120 km. east of Bangkok. An energy audit was done at the hospital in 2003. Total energy consumption was about 4,195,000 kWh and cost about 10,884,000 Baht in 2003. Average electricity cost was 2.60 Baht/kWh. The hospital has 5 air-cooled reciprocating chillers (each 210 TR-ton of refrigeration) and they had been in operation for 10 years. Two chillers were in operation and 3 chillers could not operate properly. It was found that the existing air-cooled chillers have a very low efficiency in a range of 1.66-2.17 kW/TR. Efficiency of a new air-cooled chiller is about 1.1-1.18 kW/TR. The maintenance costs were also high, about 500,000 Baht/year/unit. From the energy audit report, the chillers consumed about 2.06 million kWh/year (operated 24 hours/day and 365 days/year) or about 5.63 million Baht/year or about 50% of total energy consumption.      From the existing conditions, the hospital decided to replace the worn out chillers. The hospital’s energy consultant, Innovation Technology Co., Ltd., proposed and compared 3 options for consideration. More...

Royal Orchid Sheraton hotel was opened for business about 25 years ago. It is located near by the Chaopraya river and has 740 rooms.
     The hotel has 2 boilers (1 stand-by), 5 tons/hour each, to produce steam for laundry, kitchen and domestic hot water supply. Average fuel consumption (bunker oil A) of boiler was about 2,000 liter/day. There are 5 hot water generator using steam as heat source. Temperature of domestic hot water supply is about 55 °C. Average hot water consumption is about 95 m³/day at 70% occupancy.
     When the price of fuel oil was increased to over 25 Baht/liter (about US$ 0.7/liter) in 2008, the hotel decided to use solar water heating system to save energy cost. At the same time, there was an incentive from the Department of Alternative Energy Development and Efficiency (DEDE) which provided hotel with a subsidy of 4,500 Baht/m² of solar collector area. More...

The project is located in the main body of the iron and steel production facility operated by Wuhan Iron and Steel (Group) Co. To increase the utilization rate of available energy in Wugang, the specific project will construct dry quenching equipment with 140t/h dealing capacity matching a power station. The project will have a rated total installed capacity of 6MW, and an actual total installed capacity of 4.225MW. The annual utilizing hour is 8,280h, thus the annual power generation is 34,980MWh. After auxiliary consumption and losses, annual net electricity supply via a 10kV power line to the internal electricity system of Wugang is expected to be 21,687MWh. Additional to electricity supply, the project will also generate and supply heat (not claimed emission reductions due to the supply of heat). In the baseline, Wugang received 38.15% of its electricity requirement from an on-site 400MW power plant (i.e. two 200 MW generators) and the remaining 61.85% from the Central China Power Grid. The specific project activity will therefore effectively replace electricity generated both in the power plant and on the Central China Power Grid (which is dominated by coal-fired thermal power plants) and reduce emissions with around 16,738tCO₂e annually. More...

In years 2006–2008, biomass as secondary fuel has been introduced in power plant EHO CEZ (Elektrarna Hodonin, ČEZ, hereafter “EHO”) in city of Hodonin, East Czech Republic. For this purpose two lignite-fired Circulating Fluid Bed (CFB) boilers K01 and K02, were subsequently retrofitted with new cofiring systems adopted to simultaneous burning of mix of coal with wood chips. EHO has become the biggest producer of electric power from biomass in the Czech Republic. The new system can even operate on pure biomass which is rarity in this range of capacity per unit. Compliance with stringent emission standards was fulfilled. Process economy and reliability were improved dramatically as well. More...

The aim of this project is to develop a technology that will produce energy by solar source offering an efficient alternative to oil energy and a path to reducing CO₂ emissions. It will increase with 5 MW the power of the existing combined loop plant in Priolo Gargallo entirely from renewable sources. ENEL's power plant at Priolo Gargallo (Siracusa, Sicily) has been deemed apt to host the project deployment due both to its very high values of insolation (incoming solar radiation) and to the site morphologic features (orography). More...

Floka W2E facility Project considers reception of wastewater along with sludge an solid wastes and treating them to obtain energy from them. The project also considers reception and treatment of other industrial wastes generated in the area (cow and pork growth and slaughter; diary; shellfish) that are not managed nor treated in a sustainable manner. More...

Power Plant Počerady 1200 MW is located in North-West of Czech Republic, close to border with Germany. It is one of the biggest coal-fired power plants in the Czech Republic. Its owner is ČEZ a.s., one of the biggest private utilities in Europe. PP Pocerady has six blocks, capacity 200 MW each. All of them are fired with domestic brown coal causing high level of emissions GHG, mainly CO₂.
    In June, 2009 ČEZ concluded a contract with ŠKODA PRAHA Invest. for the design, supply, procurement, erection and commissioning of a Gas Turbine Combined Cycle (GTCC) powerplant capacity 841 MW. to be built in Pocerady. Its construction will start early 2010. Development of this GTCC plant will be in progress in the period from October 2010 to April 2013. Project costs are of the investment amounts approx 800 Mill. EUR. More...

The objective was to carry out a renovation of multi-dwelling building which flats are owned by the inhabitants, leading to lower energy consumption and improvement of the comfort of the flats. Given the fact that in Bulgaria there are about 95 thousand multifamily buildings with 3 and more floors built predominantly in the 60th and 70th with poor energy characteristics, the potential of replication of the project is huge. More...

In June 2008 two coal-fired boilers in ZVTP (Zvolenská Teplárenská s.r.o., hereafter “ZVTP”) Slovak Republic were retrofitted with a new cofiring system adopted to simultaneous burning of mix of coal with wood chips. Compliance with stringent emission standards was fulfilled. Process economy and reliability were improved dramatically as well. Project was partly supported by EU and partly from Government sources. More...

The objective of the project has been to reduce the energy consumption of a new green field manufacturing filling facility for the healthcare company Novo Nordisk. By introducing Sustainable Design activities during the design and engineering phases of the new facility significant savings of the future energy demand and investment could be achieved. More...

Applying a three-step methodology for Sustainable Design of a new biopharmaceutical manufacturing facility, resulted in comprehensive possibilities for improving energy performance of future manufacturing. A baseline study revealed the energy consumption if the facility was build as defined in the conceptual design. The operating costs related to consumption of water and energy would then be 1.765 mill €/year. More...

Walking the Talk Industrial Carbon-saving Initiatives in Southern Denmark Download the Report (1712 Kb PDF) See the SETatWork database for further information about this report...

Organisations that could answer "Yes" to the following questions were invited to complete an online Case Study template:

• Are you an EU ETS Company?
• Are you involved in establishing a Sustainable Energy project?
• Do you want to promote projects in your country?
• Would you like to contact companies or other organisations for discussions on EU ETS, CDM or JI project development or implementation?
• Do you provide Sustainable Energy technologies or services?
• Would like to promote your project or organisation on this website?

Details of the SETatWork Good Practice and other Case Studies were then added to this page and to the SETatWork Database.