Maren is a marine energy management system

Energy management system

An energy management system is a system of computer-aided tools used by operators of electric utility grids to monitor, control, and optimize the performance of the generation and/or transmission system...

 used to minimize fuel usage, thereby reducing vessel operator's fuel cost and the harmful emissions. Maren is developed by Marorka

Marorka

Marorka is a company based in Reykjavík, Iceland. It operates wholly owned subsidiaries in Denmark and Norway. Marorka specializes in marine energy management. Marorka's mission is to deliver products and services to vessel owners and operators to save fuel, increase profitability and reduce...

 in Iceland. Maren 2 was released in Q3 in 2005 and launched at the Icelandic Fisheries Exhibition that year. Maren 2 was awarded the best new product at the exhibition.

Maren monitors the various energy systems onboard different types of vessels. It puts operating en environmental parameters in an energy management context. Maren uses simulation

Simulation

Simulation is the imitation of some real thing available, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system....

 and optimization

Process optimization

Process optimization is the discipline of adjusting a process so as to optimize some specified set of parameters without violating some constraint. The most common goals are minimizing cost, maximizing throughput, and/or efficiency...

to deliver suggestions on how to improve the operation of the vessel to minimize fuel usage.