- Hanne Sæle
- WP3 Lead
- SINTEF Energi AS
Quantification of electric water heater flexibility potential in Norway
Challenge and objective
- Simultaneous activation of flexibility from thermal loads can cause adverse rebounds later.
- DSO must be aware of such impacts.
- This work propose parameters for flexibility activation from electric water heaters (EWHs) are proposed and flexibility potentials are computed for Norway.
- Maximum flexibility activation time calculation method is suggested.
- Uncoordinated flexibility activation impact is characterized.
- Simple rebound reduction technique is proposed and compared with blind activation.
- Highest average flexible power potential is 54% at 8:00 a.m. for a duration of 1 h.
- EWHs can serve as FCR at peak hours with high ramp-up and ramp-down rates of 48.5% and 23.8% per minute and as FRR during non-peak hours.
Impact for distribution system innovation
- DSO must have an overview of the impact of flexibility activation on the demand side.
Reference in CINELDI
- V. Lakshmanan, H. Sæle, M.Z. Degefa: "Electric water heater flexibility potential and activation impact in system operator perspective–Norwegian scenario case study", Energy, vol 236, 2021.