SPF Competencies Energy Systems

System Simulation

SPF has years of experience in simulation renewable energy systems. We are experts in using the established TRNSYS transient energy system simulation tool and have built our in-house, open-source Python framework «pytrnsys» for defining, simulating and post-processing parametric variation runs on top of TRNSYS. Additionally, we develop our own TRNSYS types for custom component models.

With extensive experience in system simulation across research, testing & certification, and commercial consulting, we bring deep technical expertise to every project. We collaborate with companies of all sizes to support their journey toward sustainable, low-carbon energy solutions, with a particular focus on SMEs.

We have – among others – extensive experience in the following fields:

• Solar thermal: Low and high temperature, concentrating and non-concentrating, …
• Solar heat for industrial processes
• Sensible thermal energy storages: Tank, borehole, pit, …, from peak to seasonal
• Latent thermal energy storages: Ice storages, high temperature PCM, …, daily to seasonal
• Heat pumps: Ground source, air source, water source, thermally driven, …
• District heating: Seasonal thermal storages, anergy networks, …
• Photovoltaics (PV) and sector coupling
• Building and heating system simulations
• Software development in the field of renewable energy systems
• Digital twins

We’ve also been participating in various IEA tasks where we welcome the opportunity to exchange ideas with industry leaders. Recent IEA tasks we’ve been involved in are:

1. IEA SHC Task 65: Efficient Solar District Heating Systems
2. IEA-ES Task 45: Accelerating the Uptake of Large Thermal Energy Storages