As certified energy auditor kleinkraft assesses energy efficiency measures of its customers for the acknoledgement according to the Austrian energy efficiency law. Energy efficiency measures result in energy savings of electricity and natural gas. Within the assessed projects of big and well-known industrial companies yearly energy savings are achieved:

• 7.154.381 kWh/year

Increasing the energy efficiency is one of the most important measures for energy savings and lowering of CO2 emissions. For public recognition of these measures the WEKA Industrie Medien in cooperation with klimaaktiv organized the energy efficiency conference. Klimaaktiv is the climate protection initiative of the ministry for environment in Austria (BMLFUW) and an instrument to foster the energy transition.

At the conference 48 best practice projects were awarded for the successful implementation of energy efficiency measures. Minister for environment, Andrä Rupprechter, was awarding the energy efficient companies and their consulters. kleinkraft is thanks for the consulter award.

Two photovoltaic plants with a size of 200kWp each were realized at our customers. The produced electricity is utilized to cover the own electricity demand, raising its profitability. kleinkraft accompanied the whole process from the idea until the implementation within the following steps:

• Feasibility study and sizing
• Definition of assessment criteria
• Obtaining and comparision of offers
• Obtaining permits
• Successful public funding application

To reduce the energy demand for the heating supply, an industrial heat pump was installed. The waste heat of the cooling machine and eco-electricity are used for efficient and CO2 neutral process heat production.

• The necessary energy consumption for process heat was reduced by 70%
• Public funding from Kommunalkredit
• Further information at Kommunalnet

Energy audits for the Wiesbauer Holding AG according to the Austrian energy efficiency law for buildings, process and mobility were conducted. Focus for these energy audits was laid on the identification of optimization measures to increase renewable energy on the one hand and reduce the energy demand on the other hand. Energy saving potentials and dynamic amortisation for the identified measures were calculated, technical descriptions made, and potential public funding possibilities identified. The interaction of processes was shown and possibilities to measure the impact were identified. The following representative sites of Wiesbauer Holding AG were selected for conducting energy audits:

• Wiesbauer österreichische Wurstspezialitäten GmbH
• Wiesbauer Gourmet GmbH
• Wiesbauer branches

Results:

• Optimization potential’s for energy efficiency and renewable energy were shown
• Concrete measures and a realization strategy were defined
• Implementation of the measures including public funding was done afterwards

With the installed waste heat recovery an integrated heat concepts was implemented with the focus on waste heat utilization in lowest temperature range. During planning a special focus was at the loads in low temperature ranges. In many cases there is low demand for low temperature waste heat resulting in low efficiency of waste heat recovery systems. In cooling and especially in freezing there are many consumers.

• Heat and electricity savings of about 900 MWh per year
• Public funding from Kommunalkredit
• Further information at klima aktiv and Helios