Website: www.strasa.com/sec_tools/
Case Study (155 Kb PDF)
Summary
Iecava is a 311 km² municipality located in central part of Latvia. The population in 2006 consisted of 9 327 inhabitants located mostly in Iecava village. District heating system consists of 2 boiler houses with separate networks. Total heat capacity was initially 12,4 MW with an annual heat production of 18 000 MWh. A development plan for Iecava district heating system aiming to reduce heating costs and fuel consumption was implemented in 4 stages, from 2001 to 2005. The most efficient activities, switching from 4 to 2 pipes networks and installation of individual heat substations, were done during the first stage. The most important results of the reconstruction were reduction of heat losses 6 fold, reduction of the natural gas consumption by 30 % and general improvement of service quality.
Results
The most important result by the implementation of the heating system development plan was the reduction of heat losses in networks six fold, which consequently lead to better quality of heating service and reduced the gas consumption in the boiler plant. Compared to heating season 1998/1999, natural gas consumption in 2006/2007 was about 30 % less. Another important result was increasing the boilers' efficiency.
Nowadays there are 4 installed boilers in central boiler house with 7,7 MW capacity and peak load 6,5 MW. (RK-1.6 x 2, 1980, 1,86 MW x 2, efficiency 94%, TTKV-10-10, 2003, 1 MW, efficiency 95%, TTKV-30-30, 2003, 3 MW, efficiency 95%). The boiler in the village boiler house have a comparable good efficiency and are therefore excluded from the primary activities plan (RK-1.6 x 2, 1996, 1,86 MW x 2, efficiency 92%).
Installation of heat substations gives opportunity to introduce different energy efficiency measures, because customers nowadays have to pay for actually consumed amount of heat and not average tariff, thus making possible to implement insulation projects using bank loans. It.s still missing an organization link in the heating sector (house holding organizations in apartment houses), which could be able to organize residents and manage investment projects.
To find similar reports, click on a keyword below:
Citizens
: District Heating
: Energy Efficiency
: Heat/Heating
: ManagEnergy
: Sustainable Communities
Complete the Questionnaire to add your organisation to this website
