CCS Heimdal varmesentral – Development and optimization of basis consept, Phase 2

Background and purpose of the project?
Heimdal heating center (HHC) handles approximately 220,000 tonnes of waste each year which, when incinerated, forms approximately 80,000 tonnes of fossil CO₂ and 160,000 tonnes of biogenic CO₂. Statkraft has the ambition to become climate neutral by 2040. Reduction of CO₂-emissions from HHC is critical to achieve the climate goals of Trondheim municipality, and important for the development of the logistical concepts/solutions for captured CO₂ in the region.

The project is based on studies previously supported by CLIMIT; CCS Heimdal heating central – Development of technical concept, Phase 1 and CCS Heimdal heating central – development and optimalization of basic concept, Phase 1, pre-project (CCS Heimdal varmesentral – Utvikling av teknisk grunnkonsept, Fase 1 og CCS Heimdal varmesentral – Utvikling og optimalisering av grunnkonsept, Forprosjekt). The project also includes knowledge exchange with the CLIMIT-supported “klynge-collaboration” CCS Central Norway – Phase 1 (CCS Midt-Norge – Fase 1) and the industrial collaboration Klimakur for Avfallsforbrenning i Norge (KAN), fase 1 (Climate Cure for Waste Incineration in Norway, phase 1) which is carried out in the same period.

The purpose of the project has been to update the factual- and design basis to improve, optimize and/or verify the technical solution for costs, environment, safety and increased utilization for the district heating network. The work has also included an overall HSSE plan and analysis of the commercial potential for entire value chain.
What was the goal of the project?
The main goal of the project was to develop and optimize solutions for a cost-efficient design, construction and operation of a CO₂ handling facility with a minimal environmental footprint, based on heating integration with hot water from the district heating system.

What type of activities has the project done?
The project has worked with four different work packages;
1. Optimalization of intermediate storage at HHC and the value chain for transport to permanent storage
2. Preferred concept for capture facilities and -technology, and intermediate storage at HHC
3. HSSE plan, Project Execution Plan and operational concept for the CO₂ handling facilities
4. Commercial assessment of business models and alternatives to transport and permanent storage

What has the project achieved? Where the objectives of the project met?
The project has met its objectives, and developed and optimized solutions related to;
· Spread calculations for “worst case scenario” CO₂ leakage
· LCA study and analysis of cost for CO₂ transport to permanent storage
· Simulation to ensure energy optimalization and increased energy utilization
· Design basis, cost estimates and technical report
· Technical solution and cost estimates for capture and conditioning facilities and intermediate storage solution, including dialogue with select suppliers for verification, delivery capability and alternative solutions
· Overall HSSE plan
· Operating concept, including assessment of stand-alone concept vs. integrated with existing operations and outsourcing
· Implementation plan for the project up to the indicative investment decision, incl. overall plan for realization
· Business models for CCUS and assessment of suitability in connection with CCS at HHC and the associated value chain in Central Norway
· Overall modeling of profitability for the various models given the current framework conditions and scenarios for future development
· Options for intermediate storage, ship transport and permanent storage

Future plans?
The CCUS project at Heimdal heating central further matures with a concept phase where the main content will be linked to the selection of the final concept for capture, intermediate storage, transport and permanent storage, sufficient clarification of emission/permits, regulatory and commercial matters and agreement on the acquisition of land for the capture facility at Heimdal heating center.