Experiences: * Development Engineering of more than 2,000 MW of renewable energy systems (Solar PV = 80% offshore wind = 5% Solar PV + BESS = 10%) o Preliminary layout including civil and electrical o Simulation PVSYST o IA negotiations o PPA proposal preparation and PPA negotiations o Structure financing negotiations * Engineering and project management and implementation of about 465 MW of renewable energy systems (Solar PV = 75% Solar PV + BESS = 25%) o Component selection (Inverters, battery supplier, transformer, SCADA / DAS, ) o EPC scope of work discussions and contract negotiations o O&M scope of work discussions and contract negotiations o SLDs o Interconnection discussions with utilities o PSSE modelling of Hybrid system Solar Systems in Puerto Rico o PREPA: MTR discussions and development of solutions for MTR compliance o Construction supervision and project management contract management * Energy audit at education and community center of Hansestadt Lübeck, Germany. Results: o map of existing power generators and consumers (motors, pumps, generators, compressors, ) o KPI- System for environmental management system (ISO 140XX) o plans for energy savings (behavioral = about 20%) o plan for energy efficiency measures (about 30%) o plan for reactive power compensation / injection o replacement / update of fossil fuel genarators (one gas generator was mal- functioning) o proposal for renewable energy systems to reduce carbon foodprint o energy storage concept for reduction of demand charges as well as ramp rate controls * Analysis of energy consumption and cost of energy (Natomas Livermore, ) Results: o plan for energy savings (behavioral) o plan for energy efficiency measures o proposal for renewable energy systems to reduce carbon foodprint o avoided cost method for reduction of supply and demand charges * design of Solar PV + BESS projects: o component selection o Battery supply negotiations (including lifetime expectation, warranties, replacement requirements, ) o Specifying round trip efficiencies, ramp rate and reactive power controls * Supervision of operation and Maintenance of about 150MW of renewable energy systems: o component selection o selection of monitoring platform o Specifying data points for SCADA o Managing alert responses o Managing availability, preventive maintenance schedules and corrective maintenance activities Dirk Vollbrecht Project Experiences: 2017 Oregon Project Portfolio, USA, 50.2 MW, horizontal single axis tracking system, ground mounted: Project Developer: GCL New Energy EPC: Borrego Project Management: Xu Chen, Sr. Manager, GCL New Energy Inc. Dirk Vollbrecht, Director of Engineering, GCL New Energy Inc. My responsibilities: technical due diligence, preliminary design, design review, production estimates, cost estimates and EPC budget, EPC Selection and EPC contract negotiations. 2016 - 2017 Wilson Solar Farms Portfolio (North Carolina), USA, 83 MW, fixed tilt, ground mounted: Wilson is located in North Carolina. The project portfolio consists of 8 project. The projects are interconnecting at distribution level of Wilson Electric Utility. The uses a mix of different Panels

Highlights:

Companies I like:

Pg&e , Smud, Apple, Gcl, Dnv, Sdg&e , E.on renewables, Edf renewables, Shell renewables

• Supply Chain
• Management
• Procurement
• Budgeting
• EPC
• P&L
• Software
• Software Development
• Technical Requirements
• Venture Capital