PU-BENEFS PU-BENEFS Feasibility study report Country: Finland Picture of the object

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1 PU-BENEFS Feasibility study report Country: Finland Picture of the object

2 Table of contents 1 Background Aims and ambitions with the feasibility study Overview on step-by- step process The acquisition process Results from feasibility study Gained experiences and lessons learned Contact information

3 Report on results of feasibility study Country: Finland Project: Tikkakoski swinning pool Customer: Jyväskylä rural municipality, facility management unit Provider of Feasibility Study: Asko Ojaniemi Subcontractor (if needed): YIT Kiinteitötekniikka Oy 1 Background The target consists of swimming pool and clubroom (daytime few day care groups, night time different club meetings and youth happenings). Swimming pool opening times mon. fri sat Morning swim fri, sat 6:30 9:00 and school groups, swimming schools etc. in mornings. 2 Aims and ambitions with the feasibility study This target was selected for study, because the building seems to use energy more than average in similar buildings. The management of the facility is by municipality own staff. The building is connected to district heating. The facility may be completely renovated in future and the building mantle is not included in this study. The municipality is interested to make energy improvements already before the major renovation if they are found feasible. 3. Overview on step-by- step process First step is light feasibility study in order to find potential savings opportunities In case savings potential is found the customer will decide whether to proceed based on ESCO concept or should it be proceeded as own Choice between different procedures is made by the facility management unit. If ESCO concept is selected and no major own investments are required the decision lies with municipal technical committee. If it is own investment or major amount of funds are requested for other parallel investments the decision is by municipal council. Investment decision will be included in total budgetary decision process. ESCO-concept will shorter the decision making time and main advantage is in starting the energy savings earlier. First feasibility evaluation will take 1-2 days including site visit and collection of data. The building owner will do the datamining according to consultant instructions. Service providers do also the initial feasibility evaluations on small fee or free of charge. 2

4 Initial feasibility study may be followed by letter of intent or pre-contract where main terms of agreement are stated and also the process to full contract is described. After the letter of intent the energy consumption in interested areas are measured in detail and other issues like indoor climate is measured as reference value for final contract. It is important that the energy savings are not reached on the expense of indoor climate quality. 4. The acquisition process - Rural municipality of Jyväskylä was invited to advisory board and after first meeting the discussion has continued and reached the point that completion of few prefeasibility studies have been agreed - Main argument is that can something be done before these buildings will be under major renovation through municipal budgetary system. - At this point only municipal facility management organisation is involved in decisionmaking, technical committee is informed. - The feasibility study expenses are divided between the project and YIT. Municipality is covering their own costs. - Datamining process Heat electricity and water consumption data for last three years were collected. All ventilation equipment were checked visually and main equipment data recorded.. Customer provided all energy consumption data and it is based on measured and invoiced values and can be considered reliable. Three years average is baseline, it can be corrected by weather data if past years have been exceptional. Data on existing heating and ventilation equipment was collected during the site visit. 5. Results from feasibility study Heat consumption Measured consumption 2003, 2004, 2006 MWh/a 859,7, 949,9, 849,5 MWh/a Reduced values 886, 987, 930 MWh/a Nominal 143,1, 159,5, 150,2 kwh/m3,a Heat distribution: -heating 54 % -ventilation 33 % -domestic water 13 % 3

5 The specific consumption was 150 kwh/m3 when the average in similar building at Jyväskylä latitude is 76,1 kwh/m3 The consumption is clearly higher than average level Electricity measured consumption MWh/a specific consumption 70,8 84,4 80,6 Specific consumption was 80,6 kwh/m3, when on average at similar facilities it is 42,9 kwh/m3. Consumption is higher than average. This is probably due to lower than present standard ventilation. Water Consumption 2003, 2004, , 3129, 3272 m3 Specific consumption 484,0, 505,5, 528,6 dm3/m3 Specific/visitor 103,0, 93,8, 93,1 dm3/visitor Average specific consumption at similar facilities is 634 dm3/m3 or dm3/visitor and this can be considered to be at normal level. The consumption of heat and electricity are high. One reason for high consumption is expected to be the control of ventilation system. The system control is on/off basis on daytime and running at all times when the facility is open for visitors.. This leads to higher than needed ventilation and lower than recommended moisture in pool area. Low moisture means high evaporation from pool and high ventilation of moist air means energy loss. Night time ventilation is based on moisture control, ventilation starts if relative humidity exceeds 70 %. The set value is too high, 70 % relative humidity may be dangerous for building already. The moisture may penetrate to insulation layers. Ventilation of pool area has heat recovery unit but the club area ventilation has no heat recovery units. It is recommended that the ventilation system shall be equipped with frequency control unit for continuous adjustment and the ventilation control to be based on pool area humidity. In club area the ventilation control should be based on CO2 metering. These measures will lower both heat and electricity consumption. Weak point Measure foreseen Estimated investment Estimated annual cost Estimated Savings (kwh,co2, ) Static back time pay Ventilation frequency controls, humidity based control, co2 control

6 Evaluation for the possibility of implementation The improvement of ventilation system seems to be small but attractive target for ESCO-contract. The job is small but it has been agreed that the contractor shall make more detailed analysis on the savings potential and make ESCO proposal for the municipality. Municipality could easily make the necessary investment on its own but wants to try the procedure as an example. This will be the first public ESCO contract in the region, which makes it interesting for all parties. Please indicate the criteria you choose to justify your recommendation e.g. pay back time too long 6. Gained experiences and lessons learned 7. Contact information Under this headline you give contact information to well initiated representatives of the customer and the feasibility study provider: Customer contact: - Ritva LappalainenName: - Title: Facility management manager - Organisation: Jyväskylä rural municipality - Contact information such as address, telephone and Puistokatu 35, FI Jyväskylä, Feasibility studies provider contact: - Name: Kimmo Ruokoniemi - Title: project manager - Organisation: YIT Kiinteistötekniikka - Contact information such as address, telephone and PO.Box 222, Helsinki,

7 Annex 1: Template for Step by Step procedure Step Parties involved Decision making/ hurdles Duration time Working days Aquisition Pool building First auditing Definition of project aims Generation of Tendering papers Public call for application (EUwide) Bidding process Evaluation of bids Negociation Second step Final evaluation EPC Contract 6