Optimizing the Operating Cost of Energy. Proven solution driving cost reduction, reliability improvement and environmental compliance, Unequaled installed base at more than 70 sites, including:
ExxonMobil, Thermal Energy Storage, Phillips 66, DOW (Rohm & Hass), Chevron, Cepsa Quimica, Petronor, Air Liquide, Repsol, LOTOS, KNPC, INEOS, Total and ENAP with Case Studies
ExxonMobil Refinery Reduces Energy Cost
AIChE Regional Process Technology Conference 2009: ExxonMobil presentation. Abstract: This project is unique for the ExxonMobil Baytown complex in that it optimizes a utilities system across numerous boundaries, both physical and organizational. From a global perspective, the energy savings demonstrated are significant, and this project provides a model for future projects in other multi-business unit sites for ExxonMobil around the world.
Industrial Energy Technology Conference (IETC) 2009: ExxonMobil discusses their VisualMesa energy cost reduction project.
Facility Energy Optimization. VM-ERTO uses mathematical models and discrete, non-linear, optimization routines (SQP) to predict how to run the steam and electrical systems at the minimum cost while meeting required plant steam demands and other critical plant constraints.
VM-ERTO also determines where to make incremental steam and electricity as well as identifying which turbines or valves will most efficiently let down the steam between process levels.
superior Energy Management real-time optimization VM-ERTO utility optimizer
Refinery Model and Energy Cost Example: Objective: Optimize the Utility System,Total Operating Cost; Total Operating Cost = Total Fuel Cost + Total Electric Purchase Cost + Other Costs (water, etc.); Constraints such as: Total Energy Required & Emissions; and Technology: Mathematical Models & SQP Solver
Industry Experience: Refining & Petrochemicals, Campus and District Energy, Sugar & Ethanol and Pulp & Paper
Fuel Choices & Greenhouse Gas Emissions. VM-ERTO chooses the most economic fuel to burn in the boilers and/or process heaters. The fuel system can be modeled in great depth to include emissions limits, CO2 trading and contractual issues, such as fuel oil grades, natural gas suppliers, quotas and penalties if the former are exceeded. When cogeneration options are available the fuel & steam tradeoff can yield economic benefits.
Optimal Advice to Reduce Utility Cost. Operators Receive Actionable Advice on How Best To Operate Complex, Interactive Utility Systems, Operators Receive Directives on How To Set:
Cogeneration and Boiler Steam Production, Swapping of Steam & Electric Drives, Chilled Water Supply, The Export of Steam, and Manage Real-Time Power Purchase and Sale
Grupa LOTOS S.A. - Annual Report 2011: VisualMesa used to "visualise and optimise energy consumption. The system supervises energy infrastructure of the refineries on a continuous basis, including gas and heating oil systems, and the process steam system, and uses optimisation algorithms to suggest changes to the energy system which reduce energy system costs."
Operational Excellence & Collaboration. Empowering Stakeholder Collaboration, Visibility into Steam, Electric, Chilled Water & Fuel Systems, Recommends Minimum Cost Utility Supply Operation, Suggest Optimal Dispatch of Power & Thermal Storage, "What If" Studies: Predict the Impact of Proposed Changes, Provides Auditing, Accounting & Data Validation, Proven solution driving cost reduction, reliability improvement and environmental compliance
Powerful Energy Management User Interface. Familiar Microsoft Visio Based User Interface, Schematic Flow Modeling of Utility System, Equipment Details & Trend Charts, Summary View of Optimized Solution, Detailed Report of Recommended Operational Changes, Reports of Optimal Fuel Selection & Emissions