the impact of resource wise cities on regional economy

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© Gaia Monday, June 02, 2014 1 The impact of resource-wise cities on regional economies, employment and emissions 30 April 2014

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Page 1: The impact of resource wise cities on regional economy

© Gaia Monday, June 02, 2014 1

The impact of resource-wise cities on regional economies, employment and emissions

30 April 2014

Page 2: The impact of resource wise cities on regional economy

© Gaia 2

Resource wisdom has many benefits

• The first that comes to mind is the ability to save on natural resources,

materials and energy.

• Resource wisdom also creates new business and jobs.

• This slide show presents the results of an impact assessment of selected

resource-wise measures implemented in Jyväskylä.

• The assessment covers local added value generated by new business, as well as

permanent effects on employment and greenhouse gas emissions. Cost savings

and investment needs were also assessed.

• The main goal is to reveal the size of the impact of various measures.

• This slide show begins with a summary, followed by a more detailed description

of each measure. Further details on the calculation assumptions are provided in

the slide show annexes.

Page 3: The impact of resource wise cities on regional economy

© Gaia 3

6. Energy

efficiency of

buildings

7. Optimisation of

soil material

transport

1. Reduction of

leftover food

Resource wisdom in Jyväskylä

9. Reduction of

water consumption

3. Production of

biogas and soil from

biowaste

5. Increasing the

use of wood fuel

4. Production of

transport fuel from

biogas

8. Reduction of

private car use

2. Production

of local food

+1000

person-

years/year

-500 kt

CO2-eq/year

+€100M added

value/year

Page 4: The impact of resource wise cities on regional economy

© Gaia 4

Summary of selected measures

Measure Spatial scale

Added value from production €M/year

Savings

€M/year

Investments €M

Jobs, person-years

Reduction of CO2

emissions, kt of

CO2/year

1. Reduction of leftover food Jyväskylä 0.1 - 0 0 0.1

2. Production of local food Central Finland

80 - not calculated

860 not calculated

3. Production of biogas and soil from biowaste

Jyväskylä region

1 - 4-7 10 4

4. Production of transport fuel from biogas 1

Central Finland

20 - 70-100 170 60

5. Increasing the use of wood fuel Jyväskylä 7 - 50-70 80 370

6. Energy efficiency of buildings Jyväskylä - 28 70-100 not calculated

60

7. Optimisation of soil material transport

Jyväskylä region

- 0.2 0.1 not calculated

0.3

8. Reduction of private car use Jyväskylä - 2 0 0 4

9. Reduction of water consumption Jyväskylä - 1.5 0 0 3

1 includes biogas production in case 2

Page 5: The impact of resource wise cities on regional economy

© Gaia 5

The measures and their impact

The results

Page 6: The impact of resource wise cities on regional economy

© Gaia 6

1. Reduction of leftover food

Starting point: Approximately 11% of

food produced in institutional kitchens is

thrown away. The amount of food that goes

to waste could be reduced by selling

leftover food, which would also help to

reduce the amount of biowaste.

Outcome: The amount of leftover food

generated by institutional kitchens

providing free meals in the Jyväskylä

region (schools and other educational

institutions) will be reduced by selling

leftover food to external customers. Meals

will be sold for a nominal price that covers

the cost of bread, spread and beverages. It

is estimated that this would reduce the

amount of food wasted by 50,000 meals a

year.

Page 7: The impact of resource wise cities on regional economy

© Gaia 7

2. Production of local food

Starting point: Primary production

in Central Finland is currently valued at

€261M, while food industry production

totals €438M. Depending on the line of

business, primary production has a 70–

84% self-sufficiency rate, while the food

industry has one of 15–88%.

Outcome: An increase in locally

produced food so that half of the raw

materials and food stuffs acquired from

elsewhere in Finland and from abroad

are replaced by produce from Central

Finland. This would increase the value

of Central Finland's primary

production by 10% and regional food

industry production by 12%. €

Page 8: The impact of resource wise cities on regional economy

© Gaia 8

3. Production of biogas and soil from biowaste

Starting point: The amount of

biowaste currently collected in the

Jyväskylä region is approximately 13,000

tons a year. The collected biowaste is

used in soil production at a composting

plant run by local company,

Mustankorkea Oy.

Outcome: More efficient collection of

biowaste and the expansion of the

collection area will increase the amount

of recovered biowaste by some 5, 000

tons a year. A new biogas plant will start

producing biogas from biowaste.

Nutrient-rich residues will be used by the

composting plant in the production of

soil.

Biowaste Biogas production plant

Soil

Biogas

Page 9: The impact of resource wise cities on regional economy

© Gaia 9

INFOSHEET: Waste recovery at Mustankorkea At present, the composting plant of Mustankorkea Oy handles 30,000 tons a year of separately collected biowaste and manure, and sludge from wastewater treatment plants. Together with peat and other soil materials, the composting end-product is used as a raw material for soil products. In 2013, the total amount of soil products sold came to around 27,000 tons. In the future, Mustankorkea may also begin the production of biogas from biowaste (current amount some 13,000 tons, but there is potential for 5,000 tons more), manure and sludge (current amount some 17,000 tons, but there is potential for 10,000 tons more). These higher amounts of recovered materials will be based on the more efficient collection of biowaste and the expansion of the collection area. Biogas production would multiply the added value derived from the plant’s refining processes, while significantly enhancing its future potential for soil production. Source: www.mustankorkea.fi; Managing Director Esko Martikainen

Page 10: The impact of resource wise cities on regional economy

© Gaia 10

4. Production of transport fuel from biogas

Starting point: Total consumption

of biogas in Central Finland is around

30 GWh a year. While biogas is mainly

used for heat and electricity

production, some is already an

ingredient in the production of

transport fuel.

Outcome: Central Finland will

exploit half* of the technical and

economic potential of biogas, i.e. 245

GWh. New production will be entirely

focused on the further processing of

biogas into transport fuel.

*the most profitable projects €

Photo:

Metener Oy

There will be enough

biogas to cover the fuel

consumption of around

17,000 private cars.

The reduction in the use of

foreign fuels will help

improve Finland’s trade

balance by approximately

€16M a year.

Page 11: The impact of resource wise cities on regional economy

© Gaia 11

5. Increasing the use of wood fuel

Starting point: In 2012, total

consumption of wood fuel in Jyväskylä

was 1,270 GWh. This was 20% more

than in 2010.

Outcome: The annual use of wood

fuels will be increased by 1,000 GWh.

Compared to 2012 consumption levels,

this would mean eliminating the use of

coal (160 GWh), and reducing oil

consumption by 50 GWh and peat

consumption by 790 GWh. This will

mainly be achieved through an

investment that will enable the 100%

conversion of the Keljonlahti power

plant to wood fuel-based production.

Fuel acquisition and logistics

Domestic wood chips

Power plant

The reduction in the use of

foreign fuels will help

improve Finland’s trade

balance by approximately

€8M a year.

Page 12: The impact of resource wise cities on regional economy

© Gaia 12

6. Energy efficiency of buildings

Starting point: Around 2,440 GWh of

energy was used to heat buildings in

Jyväskylä in 2012. Electricity

consumption by residential buildings

and agricultural activities came to

approximately 450 GWh.

Outcome: Energy efficiency will be

improved by 11% for heating and 7% for

electricity consumption, to correspond

to the average values for various types of

building monitored by Motiva through

energy audits. The interest-free payback

time on investments has been 2.7 years

on average. €

A

G F

E D

C B

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© Gaia 13

INFOSHEET: Improving the energy efficiency of outdoor lighting A practical trial was implemented in Jyväskylä, in which the outdoor lighting system of one housing company was replaced with a new LED lighting solution. With the old system, annual electricity consumption was roughly 6,700 kWh. Following the installation of a LED solution, electricity consumption fell to 1,700 kWh. This amounts to 5,000 kWh in annual savings – 75% less than at the starting point. The overall cost of renewing the lighting system was approximately €5,400, including design (€400) and installation (€5,000). Annual savings in electricity totalled approximately €600, making the interest-free payback time on investment around nine years. Were the average emission coefficient for electricity supply in Finland to be applied in this case, changing the outdoor lighting system would equate to a reduction in greenhouse gas emissions of around 1.5 kt CO2 eq a year. Source: Impact assessment and expansion effects of resource-wise practical trials in Jyväskylä, Sitra reports 75, 2014

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© Gaia 14

7. Optimisation of soil material transport

Starting point: Each year, some

860,000 tons of soil material are

transported in Jyväskylä. They travel

an average distance of 18 km. 50% of

these journeys are made by empty

vehicles.

Outcome: The introduction of smart

programming and a material bank will

help make soil transportation more

efficient. As a result, less temporary

storage, less loading and fewer

vehicles will be needed, and reuse will

increase. Driving with empty loads will

be completely eliminated. €

Optimisation of soil material

transports

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© Gaia 15

8. Reduction of private car use

Starting point: Private car use has increased by

10 percent in Jyväskylä in the last 20 years. The car

is the preferred mode of transport for 60-70% of

Jyväskylä’s residents.

Outcome: The share of trips made by car will be

reduced, while walking, riding a bike and using

public transport will become more popular. 80% of

the employees of the City of Jyväskylä will change

their behaviour to comply with their employer's

commuting guidelines. These guidelines

recommend walking or using a bike when

commuting less than 5 km. In addition, a campaign

will seek to increase the popularity of public

transport from 5% to 7%, in line with the objectives

of the City of Jyväskylä. €

Page 16: The impact of resource wise cities on regional economy

© Gaia 16

9. Reduction of water consumption

Starting point: Average daily water

consumption is 155l, of which 40-50l is

heated water.

Outcome: Various measures will be

introduced to reduce water

consumption among people living in

apartment blocks, based on a reduction

target of 20%. Options include

encouraging behavioural changes

through the installation of water meters

and increased awareness, or switching

bathroom and toilet fittings for models

that save on water and energy.

Page 17: The impact of resource wise cities on regional economy

© Gaia 17

INFOSHEET: Planning with energy and climate issues in mind Designing and comparing energy solutions during planning will help to save money and make land use more efficient. If all planning in Finland followed the example of Skaftkärr in Porvoo, municipalities would have saved up to two billion euros by 2020. Efficient and energy-wise planning could help municipalities to lower their investments in local infrastructure construction by 170 – 240 million euros a year, which equates to roughly five per cent of total municipal investments. Annual savings in transport fuels in 2020 would amount to 80 – 110 million euros, or around 160 euros per resident moving into a new housing area. These figures are based on the assumption that all new construction areas in Finland will be planned in an energy-wise manner over the next ten years. Source: Sitra, press release, 2 October 2012

Page 18: The impact of resource wise cities on regional economy

Gaia Group Oy, Bulevardi 6 A, FI-00120 HELSINKI, Finland – Tel +358 9686 6620 – Fax +358 9686 66210

www.gaia.fi

Our Clients Make the World Safer and Cleaner.

FINLAND – SWITZERLAND – CHINA – ETHIOPIA – ARGENTINA

Page 19: The impact of resource wise cities on regional economy

© Gaia 19

Assumptions, calculations

Background materials

Page 20: The impact of resource wise cities on regional economy

© Gaia 20

General assumptions

• Meta-analysis was used in this case, i.e. the impact assessment was mainly based on data obtained

from previous assessments, which was supplemented where necessary. The goal was to

demonstrate the scale of various options.

• In assessing each option’s potential, the goal was to achieve a realistic and feasible outcome. For

this reason, account was not taken of the full potential of each measure in every case. Instead, only

the realisable potential was highlighted.

• Assessment of the employment impact took account of permanent jobs only. The investments

have also had a temporary positive employment impact, but this was excluded from the reported

results (in some cases, more detailed information was provided on the employment impact of

investments by more precise reporting on the calculation assumptions and initial data).

• In cases (1-5), which involve the creation of new, local added value, the annual added value of

regional production was calculated. In cases (6-9), where the consumption of energy, fuel or water

was reduced, calculations were performed to determine the value of annual savings.

Calculation assumptions and

initial data

Page 21: The impact of resource wise cities on regional economy

© Gaia 21

1. Reduction of leftover food

Raw materials

• According to estimates, under current conditions one fifth of the food produced by institutional kitchens goes to waste. Leftover food,

which could be reduced by selling leftover meals, is thought to account for 11% of this (see Sitra report). According to calculations, the

amount of leftover food could be reduced by 50,000 meals in Jyväskylä. This is based on an assumed emissions reduction of 1.3 kg of

CO2 per 300 g meal.

Implementation

• Some food destined for the (biowaste) bin could be served to customers for a nominal fee outside normal catering times.

Investments

• No new investments required. These activities will be run use current facilities and equipment, by existing personnel.

Added value to production

• Let us assume that the price of a meal is €1.5. This would cover the cost of the bread, spread and beverages. According to estimates,

50,000 meals could be sold each year. Assuming that the cost is €50/ton of biowaste, the biowaste-related cost reductions would be

marginal. It is also assumed that the reduction in biowaste transportation would not affect costs.

Employment impact

• No need for additional workforce – operations will continue using existing personnel.

CO2 calculations

• An emissions reduction is assumed of 1.3 kg of CO2 per sold 300 g meal. It is also assumed that the reduction in biowaste

transportation would not affect CO2 emissions. Let us also assume that the customers buying the leftover meals arrive on foot or

using the same mode of transport that they would have used if they had gone elsewhere instead.

Other

• We may also assume that the purchase of leftover meals would have no significant impact on demand for other restaurant services.

The sale of leftover meals should be limited to leftover food from the institutional kitchens of schools and educational institutions that

provide meals free of charge. This would help to prevent customers of regular lunch services from switching to after-service meals in

the hope of saving money.

Calculation assumptions and

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© Gaia 22

2. Production of local food

Raw materials

• At present, primary production in Central Finland is currently valued at €261M and food industry production is worth €438M. Depending on the

line of business, the self-sufficiency rate is 70–84% for primary production and 15–88% within the food industry (source: Ruralia Institute,

Reports 93).

Application

• The quantity of local raw materials used in local food production and food service and retail activities could be significantly increased. This would

have an impact equivalent to the entire share of GDP accounted for by primary production, the food industry and food service and retail activities.

There would also be an employment impact.

Investments

• Not included in the assessment

Added value to production

• Calculations of the value added in production are based on the assumption that 50% of the maximum demand potential presented in Ruralia's

report, which does not include imports from elsewhere in Finland or from abroad, would be realised. In the calculation assumptions, the resulting

impact on Central Finland’s GDP due to value added in primary production would be 10% (€28M) , and that of the food industry would be 12%

(€49.5M). We could also assume that 40% of ingredients used by the food industry would be local, while the corresponding figure for publicly

operated kitchens would be approximately 50%. This would mean that half of the raw materials currently acquired from elsewhere in Finland or

from abroad would be replaced by local raw materials.

Employment impact

• In primary production, the employment impact would be 10%, or an additional 383 person-years, and in the food industry, 8.5 %, or an additional

477 person-years. This would account for half of the likely employment impact of the Ruralia project if the maximum employment potential were

realised. (Data on Central Finland)

CO2 calculations

• Let us assume that the changes in CO2 emission levels arising from changes in land use are not significant. At national level, the CO2 emission

impact of changes in transportation and logistics could be negative, due to Finland’s inefficient logistics chain (compared to large chains). A more

precise assessment of the changes in CO2 emissions would require more detailed initial data on the origins and mode of transportation used for

food imported to Central Finland, and the locations and types of food production that would replace the current situation.

Other

• In geographical terms, our scenario is limited to Central Finland. There would not necessarily be any justification in limiting the definition of

locally produced food to that produced in the Jyväskylä region or province. Besides, it may prove challenging to obtain initial data on the basis of

a local area other than that of Central Finland.

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3. Production of biogas and soil from biowaste

Raw materials

• An additional 5,000 tons of biowaste could be collected every year (13,000 tons of biowaste are currently handled at Mustankorkea

each year). This estimate is based on information provided by Mustankorkea' s Managing Director Esko Martikainen.

Application

• All collected biowaste (18,000 tons a year) is primarily used in the production of biogas, whose end-product is methane, which can

in turn be used in energy production or as transport fuel. Approximately 15 GWh of methane is generated each year (this

calculation is based on data from Wabio on biowaste sorted at the creation site, TS 35%; VS/TS 80%). At the composting plant,

reactor residues are utilised in soil production.

Investments

• The investment calculation is based on the calculation guidelines given in the Wabio brochure. The need for pre-treatment and the

cleaning of raw gas have a bearing on the size of the investments. The price range was determined bearing this in mind, while

taking account of the alternative factors presented above.

Added value to production

• The value of the methane generated in heat production would be €45/MWh (Statistics Finland), and as a transport fuel it would

total €90/MWh (VAT 0%) (selling price includes VAT 24%: €1,505/kg CH4; source: Gasum). The value of soil is €15/ton (source:

Mustankorkea’s price list). These represent the high and low ends of the price range. Energy is a dominant factor.

Employment impact

• VTT's estimate of 0.7 person-years/GWh was used here. This took account of permanent jobs only. In addition, investments have

a significant positive but temporary impact on employment (a rough estimate would be a few dozen person-years).

CO2 calculations

• Biogas is used to replace either engine fuel or diesel fuel as a transport fuel, or LFO in heating (emission coefficient: 265

gCO2/kWh).

Calculation assumptions and

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© Gaia 24

4. Production of transport fuel from biogas

Raw materials

• Tähti et al. (Potential for biomethane and hydrogen production in Finland, 2010) have estimated that biogas production in Central

Finland has a technical and economic potential amounting to 490 GWh. The theoretical potential is 1,200 GWh.

Application

• Let us assume that half of biogas production’s technical and economic potential is realised, i.e. 245 GWh. This would best be done

by making use of the more profitable half, with most production being concentrated in large plants. The result would be lower unit

costs. The resulting biogas would be further processed into transport fuel.

Investments

• Assessment of the investments was based on the investment required for previously completed plants (Labio Oy, former Kujalan

Komposti, 50 GWh – €17M). The results were also compared with the report by Saana Ahonen: ”Biogas as a transport fuel –

regional transport biogas supply chain in Central Finland”. These factors were used to establish a price range, while bearing in

mind the aim of using the alternatives with the greatest potential profitability.

Added value to production

• Biogas produced as a transport fuel was valued at €90/MWh (VAT 0%) (sales price, VAT 24% incl.: €1,505/kg CH4; source:

Gasum).

Employment impact

• We used VTT's estimate of 0.7 person-years/GWh. This took account of permanent jobs only. In addition, the investments would

have a significant positive but temporary impact on employment. The assessment took no account of this.

CO2 calculations

• Biogas is used to replace either engine fuel or diesel fuel as a transport fuel (emission coefficient: 265 gCO2/kWh)

Other

• The number of vehicles covered by the amount of transport fuel produced from biogas is given as a rough estimate, calculated on

the basis of Saana Ahonen's publication. This figure was also compared to the publication by Tähti et al., whose assumptions and

calculations put the number of vehicles at 17,000 (16,500 km/year and 7.1 Nm3/100 km).

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5. Increasing the use of wood fuel

Raw materials

• The total amount of wood fuel used in Jyväskylä amounted to 1,060 GWh in 2010 and 1,270 GWh in 2012 (source: Jyväskylän

Energiatase energy balance report). The power company Jyväskylän Energia also aims to increase its use of wood fuel. Here, the

assumption is that the use of wood fuel can be increased by another 1,000 GWh per year from its 2012 level. This will be achieved

through an investment that enables Keljonlahti to increase its wood fuel use to 100%.

Application

• Compared to 2012, coal (160 GWh) will be completely replaced by wood and 50 GWh of oil consumption. The remaining share

(790 GWh) will replace peat (as a reference figure, Keljonlahti used 940 GWh of peat in 2012). It was assumed that the total

amount of fuel would remain the same.

Investments

• Investment in Keljonlahti approx. €55M (source: Tero Saarno). The investments made also include some written-off costs.

Added value to production

• Calculation of the value added to production in the region involved totalling the change in value of the domestic fuels used. The

price of wood and peat, based on data from Statistics Finland (in December 2013: wood: €21/MWh, peat €18/MWh). Use of wood

is growing; peat use is diminishing.

Employment impact

• On the basis of the employment estimates given by the Pellervo Economic Research Institute (wood/wood chips, the following

figures have been calculated: 0.15 person-years/GWh; peat: 0.088 person-years/GWh); The employment impact of wood use

would be positive, while that of peat use would be negative.

CO2 calculations

• Emission coefficients provided by Motiva: Fuel heat values, cost-benefit ratios and carbon dioxide-specific emission coefficients

and energy prices_19042010

Other

• The foreign fuel savings were also calculated; based on prices according to Statistics Finland (December 2013: oil €90/MWh and

coal €22/MWh).

Calculation assumptions and

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© Gaia 26

6. Energy efficiency of buildings

Starting point

• A total of 2,440 GWh of energy would be used to heat buildings and the electricity consumption of housing and agriculture would

total 450 GWh (Jyväskylän energiatase 2012 energy balance report).

Energy saving potential

• Based on more than 1,000 energy review reports, Motiva has estimated that potential savings in heating would total 11% and

electricity savings would come to 7%. This would give an average payback time on investment of 2.7 years.

Investments

• The value of investments in the above-mentioned targets was calculated on the basis of the Motiva reports, with a payback time of

2.7 years. To verify the results, the limit values were broadened and the calculations repeated with a payback time of 3.5 years.

Value of energy savings

• The value of energy savings was calculated on the basis of consumer prices (Statistics Finland consumer prices for heating energy,

December 2013). Electricity €150/MWh, district heating €76/MWh, oil €108/MWh, wood pellets €60/MWh.

Employment impact

• Not included in the assessment. The employment impact of the investments was evaluated as being in excess of 1,000 person-

years. However, this figure was not included in the report due to the principle that only jobs permanent during the period under

review would be included.

CO2 calculations

• The electricity calculations were based on the five-year national average (Statistics Finland, Tilastokeskus, benefit sharing scheme,

223 g/kWh), the district heating calculations on the CSR Report of power company Jyväskylän Energia (210 g/kWh), and the light

fuel oil (LFO) calculations were based on information provided by Motiva (267 g/kWh). The breakdown of heat consumption was

based on the Jyväskylän energiatase 2012 energy balance report.

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7. Optimisation of soil material transport

Starting point

• 860,000 tons of soil material is transported within Jyväskylä each year. The average distance of each journey is 18 km and a typical

load of soil weighs 17 tons. Source: Jyväskylä 75

Savings potential of transports

• Journeys by empty vehicles will be eliminated.

Investments

• During resource-wise practical trials, the cost of investing in the development of a material bank and programme would be

€20,000 - 100,000.

The value of savings in transportation costs

• The consumer price of diesel, €1.6/l, was used to calculate the value of savings in transportation costs. Financial savings in fuel

costs were taken into account. Fuel consumption while driving with an empty load totals 0.27 l/km (VTT's LIPASTO emission

calculation system). Possible savings related to temporary storage areas and the reuse of material have not been factored in.

Employment impact

• Not included in the assessment. The possible employment impact may result from i) changes in transportation used, or ii) program

maintenance.

CO2 calculations

• Driving with an empty load generates 864 g CO2-eq/km (Sources: Jyväskylä 75 and VTT's LIPASTO emission calculation system).

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8. Reduction of private car use

Starting point

• In Jyväskylä, as a share of all modes of transport, public transport accounts for 5%, with 18,000 trips made each day. For

commuting trips of less than 5 km, the initial data was obtained from the Jyväskylä Region Travel Survey (Commute intelligently

II, 2013), commissioned by the City of Jyväskylä. According to this survey, nearly one in two workers use a private car to travel to

work. The City of Jyväskylä employs 6,500 people, of whom 50% have a commuting distance of less than 5 km. Of these employees,

30% use a car to travel to work. The average commuting distance used in the calculations was 3 km.

Potential for reduction

• The assumption is that 80% of city employees covered by the commuting guidelines will change their behaviour. In addition,

campaigning will be used to increase the popularity of public transport from 5% to 7%, in line with the objectives of the City of

Jyväskylä. The potential exists to increase the occupancy rate of public transport, eliminating the need to add bus services in order

to implement this measure.

Investments

• No significant investments.

Value of savings

• Bus fares will generate additional income for the bus company. The calculations were derived from the average fare determined on

the basis of the price of a single fare for an adult and children, €2.5. The average distance travelled was 7 km. The occupancy rate of

buses would increase from the current level (15 persons/bus) to 21 persons per bus. These calculations were based on car fuel

consumption of 6.5 l/100 km and a fuel price of €1.7/l. Introduction of this operating model would require guidelines for city

employees and the acquisition of certain equipment. Positive impact: there would be a reduction in traffic congestion, noise and

accidents, and less need to invest in new lanes on roads. In addition, there would be positive health impacts, such as fewer

particulate matter emissions discharged into the air we breathe, and improved health among commuters who would use their own

muscle power to get around.

Employment impact

• Not included in the assessment.

CO2 calculations

• The reduction in CO2 emissions was calculated based on the fuel savings data, using the coefficients of VTT's LIPASTO emission

calculation system: A petrol car: 181 g CO2 eq/km. A bus in city traffic: 91.8 g CO2 eq /km/person (average of 12 persons)

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9. Reduction of water consumption

Starting point

• The starting point is the average water consumption of Finns, 155 l/day, of which 40–50 l is heated water (Motiva, 2013).

Approximately 58,600 people live in apartment buildings in Jyväskylä.

Potential for saving water

• Motiva has estimated that the installation of water meters would reduce water consumption by 15-20%. In the practical trials

conducted under the Towards Carbon-Neutral Municipalities (or, HINKU) project, alternative bathroom and toilet fittings helped

to reduce water consumption by 16%. Based on these figures, the estimated potential saving in water would be around 20%.

Investments

• No investments.

Value of the water saved

• The calculation of the value of the water saved was based on lower water rates and water heating costs, using the consumer price of

water (the consumer prices of Jyväskylän Energia, December 2013). According to the cost structure applied to water management

in Jyväskylä, 20% of water rates are not based on fixed costs.

Employment impact

• No significant employment impact.

CO2 calculations

• These figures were calculated on the basis of savings related to the energy required to heat water (district heating coefficient 210

g/kWh, CSR Report of Jyväskylän Energia), to pump raw water (electricity need 0.00042 kWh/l, Jyväskylä 75, and 223 g/kWh in

emissions), and for wastewater treatment (0.47 kg CO2/m3, Tenhunen 2000).

Calculation assumptions and

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