Smart optimization of
sustainable energy systems

LEC ENERsim models complex energy systems and optimizes them for costs, CO₂ and resilience — from early design to commercial operation.

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About LEC ENERsim

From early design to commercial operation

LEC ENERsim is a simulation platform for modern energy systems. Integrate any mix of energy sources, converters, storage units and consumers — then analyze performance, evaluate efficiency, and assess economic viability and environmental impact across every scenario.

  • Model multi-vector systems end to end
  • Optimize any scenario and operating strategy
  • Maximize flexibility and efficiency
Symbolic diagram of an interconnected multi-vector energy system: solar, battery, wind, EV charging, buildings, shipping, heat pump and clean power generation connected around a central optimization hub — AI-generated illustration

Why LEC ENERsim

One model, three objectives

Cost, emissions and resilience are optimized simultaneously — not in isolation.

Industrial complex with rooftop and ground-mounted solar panels, battery storage and a compact substation set in a green landscape, representing cost optimization — AI-generated illustration
Economics
01 — Cost

Minimize total cost

LEC ENERsim finds the configuration and dispatch strategy that minimizes capital and operating costs across the system's entire lifetime.

Aerial view of a container port with a docked container ship, rooftop solar panels on a warehouse, fuel storage tanks and offshore wind turbines, representing low-carbon operation — AI-generated illustration
Environmental
02 — CO₂-Reduction

Reduce emissions

Quantify and cut emissions by optimally sizing renewables, storage and converters around your real load profiles.

Power grid substation with solar panels, battery storage, backup power-plant stacks and a fuel tank in the foreground, representing resilient energy supply — AI-generated illustration
Resilience
03 — Resilience

Stay reliable

Design systems that ride through outages and demand peaks, balancing reliability against cost and emissions.

The platform

Clear results, built on research

LEC ENERsim turns a system definition into actionable results — costs, efficiency, emissions and autarky — with transparent energy-flow and optimization analysis.

  • Design and operational optimization
  • System-level KPIs at a glance
  • Sankey and timeseries energy-flow visualization
  • Detailed economics, environmental & resilience analysis
ENERsim system builder canvas showing connected components — PV, battery, genset, heat pump and chiller — for a resilient energy system
Sankey diagram of energy flows from sources through converters to heat, cold and electricity demand
Time-series chart of a year of simulated energy flows between components
Demand profile chart showing cooling demand across the simulated year
Yearly cash-flow chart showing CAPEX, OPEX and replacement costs over the project lifetime
System builder — drag & connect components

Included out of the box

Historic weather data for renewables
Custom load data or standard load profiles
Historic power market data (spot)
Multi-vector (electricity, heat, cooling, fuels)
Detailed cost analysis
Sophisticated autarky models
Flexibility analysis
Resilience testing
Maritime regulatory framework (IMO, EU ETS, FuelEU Maritime)
Over 50 generic and complex component models
Multiple libraries (e.g., Renewables, Microgrid, Maritime, Hydrogen)
SDK interface for advanced integrations such as predictive control

Use Cases

What you can build

Battery storage and renewables balancing a flexible microgrid, with an EV charging hub for passenger cars and heavy-duty trucks plugged into dedicated charging columns — AI-generated illustration
01

Hybrid Microgrids

Combine solar and wind with battery storage and demand-side flexibility — including smart EV charging — to capture volatile market prices while keeping supply reliable.

View demo
Container ship docked at a port terminal served by ship-to-shore gantry cranes, with containerized shore-power units on the quay — AI-generated illustration
02

Maritime Systems

Optimize on-board and shore-side energy for vessels and ports, including alternative fuels and onboard carbon capture.

View demo
Critical infrastructure campus with a resilient multi-vector energy system: solar power, battery backup, cooling towers and heat-recovery piping — AI-generated illustration
03

Resilient Energy Systems

Design multi-vector power, heat and cooling systems that keep critical infrastructure running through grid outages and component failures — with dedicated backup and cellular CORE-SHELL architectures.

View demo
Large-scale coastal power plant with multiple stacks, fuel storage tanks, a solar field and offshore wind turbines — AI-generated illustration
04

Future Power Plants

Hydrogen power plants and future-fuel production, storage and distribution — combined with hybrid setups using energy storage and heat pumps.

Article coming soon

Services

Different ways to work with LEC ENERsim

Web Application

An intuitive interface to build, simulate and optimize energy systems right in your browser.

Customized Development

Tailored models and solutions for the components and constraints unique to your system.

Optimization as a Service

Hand us your data — we deliver the optimized system design and a clear analysis.

Advanced Use & Controls

A REST API with SDKs to embed LEC ENERsim in your own tools and control loops.

Partners

HDC Solutions is LEC's strategic distribution partner for LEC ENERsim, with a focus on critical infrastructures. Under the THORIUM brand, HDC Solutions offers a comprehensive suite: the innovative ENERsim platform from LEC is extended with consulting, installation, maintenance, and customized add-ons. Together, we deliver adaptive, crisis-proof energy systems that perform reliably even under extreme conditions.

Resilience is the future

Intelligent energy concepts for safety-critical infrastructures: our modular platform combines predictive strategies with adaptive system logic — for maximum resilience, self-sufficiency and security of supply.

HDC Solutions

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See what LEC ENERsim can do for your energy system. Get in touch and we'll set you up.

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