Global warming

Electrical engineering

Climate change

Energy cost

Biology

Engineering

Environmental economics

Environmentally friendly

Economics

Architectural engineering

Ecology

Reliability engineering

Life-cycle cost analysis

Energy consumption

Computer science

Environmental science

This paper investigates different retrofit solutions simulated in a commercial building from the 1960s. All improvements were simulated in the IDA ICE software and the Global Warming Potential was calculated with the help of Eco Bat. During the investigation a cost-effective solution was indicated with the help of a life cycle cost calculation. Then the environmental impact of each proposal was estimated. This paper proves that it is possible to renovate the building reducing its energy consumption by using only the viable solutions.

Cost effective and environmental friendly energy renovation of commercial buildings from 1960s.