Solutions
Reduce grid peak demand
Shift load away from peak hours and tariff windows to cut demand charges and grid stress.
Demand charges, peak tariffs and grid connection fees can make up half of a commercial building's energy bill — and they're rising as European grids fill up. Cartesian shifts thermal load away from peak windows by charging at night and discharging when tariffs spike. The visible kW load to the grid drops, demand charges fall, and projects that were blocked by grid capacity can move forward without expensive connection reinforcement.
Typical impact
Reduce grid peak demand- 30%
- peak reduction
- No waiting
- on grid connection
- 1:1
- comfort retained
The challenge
Peak tariffs and demand charges are eating commercial energy bills, and grid operators are increasingly charging for the kW you draw — not just the kWh.
The Cartesian outcome
Cartesian shifts thermal load off-peak. Your visible kW load to the grid drops, demand charges fall, and grid-capacity bottlenecks become manageable.
Best fit when…
- Sites with steep daily peaks
- Buildings near grid capacity limits
- Portfolios with high demand-charge exposure
How it works
From signal to saving — every cycle.
- 01
Profile the peak
We pull a year of half-hourly grid data and identify the kW peaks and tariff windows driving your bill.
- 02
Scalability
The Thermal Box is sized to cover the worst peak window with margin.
- 03
Shift the load
Smart controls pre-charge the box during off-peak hours and discharge into your loop when peaks hit.
- 04
Verify the saving
Cloud dashboard shows kW peak before/after, with verified annual savings for ESG and finance reporting.
FAQ
Common questions about reduce grid peak demand
Will it cope with unusually long peaks?
We size for your worst observed peak plus 20–30 % headroom. For very long peaks we add modules — capacity scales linearly.
What if the box discharges during a peak?
Falls back to your existing plant — no comfort impact, you just miss savings on that one event.
How quickly does it pay back?
Sites with steep demand tariffs typically see 3–5 year payback on peak savings alone.
Let's build the smarter grid