Power systems
PV array design, grid-tie inverters, LVDC microgrids, protection coordination
Summary
I design and commission grid-tied solar and district heating hybrids, with 9 years in the field and 41 MW of installed capacity behind me. My recent work centers on rooftop PV for housing cooperatives, where my 2024 projects averaged a 4.2-year payback. I still keep a hand soldering test rigs, mostly because I don't trust a datasheet I haven't argued with.
Experience
Lead Systems Engineer
Vihernova Energia Oy
2021 – present
- Led design of a 6.8 MW rooftop PV portfolio across 23 Helsinki housing cooperatives, hitting 98.6% first-year availability.
- Built an inverter fault-prediction model on 14 months of telemetry, cutting unplanned site visits by 31%.
- Mentor a team of 5 engineers and run the monthly open design review with the city's energy office.
Project Engineer, Solar Thermal
Aurinkokehä Systems
2018 – 2021
- Commissioned 12 solar-thermal arrays feeding district heating loops, 17.4 MWth combined.
- Rewrote the glycol-loop sizing tool in Python, trimming design time per site from 3 days to 6 hours.
Field Engineer
Peltovoima Ky
2016 – 2018
- Surveyed and wired 60+ agrivoltaic pilot plots in Uusimaa, documenting yield effects on 4 crop types.
- Held a 0-incident safety record across 2 full installation seasons.
Skills
Modelling
PVsyst, Python (pandas, pvlib), TRNSYS, load-flow studies
Delivery
EPC coordination, commissioning, EN 62446 inspection, Finnish grid codes
Education
M.Sc. Energy Technology
Aalto University · 2014 – 2016
Thesis: snow-load derating curves for steep-tilt rooftop PV.
B.Sc. Electrical Engineering
LUT University · 2011 – 2014
Projects
Kasvihuone Commons
volunteer · 2023 – present
Solar-heated community greenhouse in Vallila; 210 m² glazing, open build logs.
pvlib-lumi
open source
Snow-shading plugin for pvlib, 340 GitHub stars.
Languages
Finnish
Native
English
Fluent, working language
Swedish
Conversational