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Real estateUtrechtExample case
Using solar power on site instead of exporting it at negative prices
An office park with a lot of solar on its roofs exported mostly at the worst moments. Storage and smarter charging of the company cars solve that.
- solar self-consumption
- +34%
- benefit per year
- €21k
- payback time
- 7.1 years
The challenge
On sunny afternoons the park exported a lot while the day-ahead price was below zero. At the same time, the lease cars only started charging after five.
Approach
- 1
Linked export per quarter-hour to the day-ahead price.
- 2
Switched the charge points to charging in the sunniest hours.
- 3
Added a 400 kWh battery for the evening peak.
Result
Self-consumption of solar power rose by 34 percentage points and export at negative prices has almost disappeared.
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