Lower energy costs within your current retail tariff
Energy savings can often be found within the electricity contract you already hold. When you’re not considering alternate tariffs or moving to spot price, Tariff Optimisation finds the operational changes that reduce cost without changing your contract or commercial risk position.
A controller that manages load against your full cost of electricity
The controller is validated against your metered load and tariff, then decides when each controllable load should run and when storage should charge or discharge, against the tariff in place including the maximum demand charge. Effluent storage enables load shifting, biogas storage allows generation output to be adjusted, sludge processing with storage can be scheduled, and aeration blowers offer some setpoint latitude, though less than storage.
The scheme runs continuously against one effective cost that combines time-of-use rates and the monthly demand charge. In detail it:
- Responds to price: when the TOU price is low, it builds storage; when expensive, it draws storage down. The target levels move smoothly with price. It is not an on/off switch. The plant tilts toward cheap windows within process limits.
- Looks ahead: it uses the price calendar and forecasts of load, solar and weather to position storage before an expensive or high-demand period, not after.
- Caps peak demand: where operating constraints allow, it limits grid import when approaching the monthly maximum demand. Because the demand charge is set by the single highest interval each month, limiting spikes in demand stops one peak setting the whole month’s charge.
- Tuned to your site: response aggressiveness, neutral price and pump start/stop handling are optimised against your load and tariff, so energy and demand charges are balanced together.
- Covers supply too: solar PV, batteries and biogas cogeneration are optimised alongside grid import against the same cost signal, not just process loads.
Extends to a CAPEX case where justified
Because the same plant model drives the analysis, an engagement can extend into a CAPEX Business Case Assessment where new or larger assets, such as pumps, blowers, storage, solar, batteries or cogeneration, would strengthen the outcome.
You choose how to implement
Delprosa can supply the control algorithm for your existing SCADA integrator to implement, or manage the integration as part of a delivery engagement. See How We Work for both tracks.
The first step is a plant assessment
It builds the same simulation model used across all Energy Management work, run against your actual metered load and current tariff. It tells you quickly whether there is a case worth building.