Power equipment installation at a water treatment site
    CONTINUOUS SERVICE

    Water&Wastewater

    Motor-dominated load, statutory service obligations, and an energy bill that is one of the largest line items in the business. Every one of those is an argument for engineering the electrical side properly.

    Load profile
    HV motor dominated
    Compensation
    Motor-side, most economical
    Supply option
    GridLink private wire
    Availability
    Statutory continuous service

    Every pump on site is a power quality problem waiting for a bad day.

    Water and wastewater sites are among the most motor-intensive industrial loads there are: pumps, blowers, compressors and mixers, running near-continuously against a statutory obligation to keep supplying and keep treating. That combination makes them unusually exposed to power quality and unusually rewarding to fix.

    Motor-side compensation is the most economical compensation point there is, and pump-heavy sites are exactly where that arithmetic works. Correcting at the motor rather than at the intake reduces losses through the whole distribution path and holds voltage where the load actually is.

    The sector is also a natural fit for private wire. Treatment works are frequently sited near land suitable for solar and wind, and GridLink exists precisely to connect local generation to a local consumer. The reference architecture runs from a solar farm's 33 kV substation to a water treatment works at 11 kV, with the public network providing load balancing on a dual connection.

    THE PROBLEM

    Sector-specific pressures

    • Motor starting and voltage depression

      Large pump starts depress voltage across the site, tripping instrumentation and control equipment that has no ride-through of its own.

    • Energy as a dominant cost

      Pumping and aeration dominate operating cost. Power factor penalties and avoidable losses come straight off the bottom line.

    • Statutory continuity obligations

      Service interruption is a regulatory event, not just an operational one. Control systems and critical pumping need protection that does not depend on the network.

    • Dispersed unmanned sites

      Pumping stations and small works are scattered and unmanned. Assets have to report their own condition or nobody will know until it fails.

    • Harsh, wet, corrosive plant rooms

      Humidity, chemical exposure and washdown environments destroy equipment that was specified for a clean switchroom.

    • Capital constrained by regulatory cycle

      Investment moves in defined periods. Solutions that avoid civils and can be phased are far easier to fund than ones that cannot.

    WHAT CHANGES

    Numbers that matter in this sector.

    11 kV
    Private wire delivery
    Reference GridLink architecture delivering solar generation to a water treatment works.
    0.9+
    Power factor threshold
    Motor-side compensation lifting sites above tariff assessment thresholds.
    IP54
    Outdoor deployment
    Containerized equipment sited outdoors where plant rooms are full or unsuitable.
    24/7
    Unmanned monitoring
    Dispersed sites reporting condition without requiring a visit to find out.
    TRACK RECORD

    Work we have done here.

    • Private wire architecture engineered from a solar farm 33 kV substation to an 11 kV water treatment consumer
    • HV motor compensation deployed across pumping-dominated sites
    • Remote monitoring across dispersed unmanned assets
    • Containerized deployment avoiding civils on sites with no available building space
    COMMON QUESTIONS

    Questions from this sector.

    Where is the best place to compensate on a pumping site?
    At the motor, in most cases. HV motor compensation for pumps, compressors, crushers, fans, mills and hoists is the most economical compensation point, because it reduces reactive current through the entire distribution path upstream rather than only at the intake meter.
    Is private wire realistic for a treatment works?
    It is one of the strongest use cases. Treatment works have large, steady, predictable demand and are frequently near suitable generation land. The reference GridLink architecture runs exactly this case: solar farm at 33 kV to water treatment works at 11 kV, with a dual connection so the public network still provides balancing.
    How do you handle equipment in washdown environments?
    By specifying for it rather than adapting to it. Three-proof coating processes, appropriate IP rating and, where the plant room is unsuitable, outdoor containerized deployment that takes the equipment out of the aggressive environment entirely.

    Tell us what keeps tripping.

    Most conversations start with an event nobody can fully explain. Send us the alarm log, the single-line diagram, or just the symptom. We will tell you what we would measure first.

    GET IN TOUCH

    Let's Solve Your Power Challenge.

    Connect with our engineering team for a technical consultation. We'll help you identify risks and uncover efficiency opportunities.

    North America

    Renewable Energy & Drives

    5325 S Moorland RdNew Berlin, WI 53151United States

    UK & Europe

    Severn Drives & Energy

    Units 2 & 3, Kingsley Business ParkNew Road, Kibworth BeauchampLeicestershire, LE8 0LEUnited Kingdom

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