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HydroLogics Overview_5 Minutes
Transcript of HydroLogics Overview_5 Minutes
Water and power utilities
Federal and state agencies
River basin commissions and councils
(U.S., Canada, China, New Zealand)
Environmental advocacy groups
1. River Basin Management.
Our Bread and Butter.
With ever-increasing demands on our limited freshwater supply, amid the uncertainties of weather and the changing climate, the rules by which surface and ground water are managed often need to be revisited. HydroLogics comes up with innovative rules to get water users more of what they want, from increased reliability to reduced pumping costs to more ecologically sustainable river flows, often through more intensive management of the system and less on costly additions of new capacity.
2. Water Supply.
Taking the Doubt out of Drought.
Water utilities are faced with the challenges of delivering a safe, reliable, and cost-effective supply. Hence the need for effective drought plans and triggers that ensure droughts are detected in time while minimizing false alerts, which result in lost water sales and disruption to the community. By having more confidence in meeting demands during drought, utilities can scale back the excess capacity they build, which is increasingly difficult and expensive to add. We use OASIS in a planning mode to establish the triggers, and in operations mode to implement them.
Advancing the management of water resources.
Powered by OASIS.
As a simulation and optimization model, OASIS can handle the complexity of hydropower operations, while also being of use to non-power interests who want to understand the longer-term, broader basin-wide implications of water management on other uses like recreation and fisheries. This ability to systematically evaluate alternative operating protocols over a long hydrologic record (typically 50+ years) makes OASIS a preferred model by many resource agencies.
Used in conjunction with our computer-aided negotiations process (CAN), HydroLogics has a track record of promoting operating license settlement among the power companies and other parties in a less contentious, less costly manner.
4. Conflict Resolution.
Yes We CAN.
Used to make water management decisions for
of the U.S. population.
One river basin at a time.
HydroLogics has developed a process for building consensus during negotiations called computer-aided negotiation (CAN).
What OASIS Does
We've been saving money and making life easier for our clients for 30 years.
Just give us 5 minutes to show you how we've done it.
Services and case studies
The design of OASIS allows the parties to easily view the input data and participate directly in the construction of the model, adding to the trust and credibility in the model. By modeling alternatives and sharing output with the stakeholders, the group can have meaningful conversations about potential solutions that can both improve reliability and save money.
For more information,
visit our website by clicking on this link:
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Frequently, new agencies and laws are formed as part of our negotiated solutions. Notable examples include the Kansas River Water Assurance District, Southern Nevada Water Authority in the Las Vegas Valley, and inter-state and federal water supply agreements for the Washington, D.C. metropolitan area.
Mathematical models are needed to understand how much water is available in a river basin to meet the competing uses for that water, from water supply to power generation to lake and river recreation.
OASIS provides the required accounting of water along with a means of developing and implementing rules to effectively manage the water.
OASIS is built for systems small and large, to be used by planners, operators, and all who have a stake in the basin's water management.
The most powerful and flexible software on the market.
The longer 20-minute overview provides detail on OASIS and the modeling process, which includes development of a system schematic and input of operating data. Once set up, OASIS can be used in planning and operations modes to evaluate system performance.
Schematic from the OASIS application of the Charlottesville, Virginia water supply system (in the Rivanna River Basin).
Objects (nodes) are physical points of interest in the basin, like the reservoirs [red triangles], and arrows (arcs) convey water between the nodes.
mode is used to evaluate how the system would perform over the inflow record under different demands, facilities, and operating policies.
Case Study: Asheville, NC
A major drought in 1998 prompted the city to impose drastic measures, including spending $300,000 on an emergency supply, despite demand being significantly less than the "safe yield" of the reservoirs.
We developed a probability-based drought plan that provides the city with forecasts of the potential risks to water supply. The forecasts allow the city to be proactive in its drought response and preserve water supply reliability. With such a plan, the $300,000 expense in 1998 would have been unnecessary.
Case Study: New York City
Given the complexity of its water supply system, the city needed a model to help meet demands, mitigate flooding, enhance environmental releases, and meet water quality standards in its unfiltered watershed supplies.
An operations support tool using OASIS allows the city to test different operational strategies in a "virtual" setting prior to actual implementation. The first of its kind for any water utility in the country, this tool has enabled the city to comply with water quality standards and avoid the multi-billion dollar cost of building filtration facilities.
Case Study: Dominion Power
Dominion Power needed to renew its operating license for its hydropower facilities on the Roanoke River (Virgina/North Carolina), and then to comply with the new, more stringent licensing requirements.
Dominion Power relied on an OASIS model of the basin and our expertise with collaborative modeling to negotiate a new license with federal and state agencies and The Nature Conservancy.
Dominion Power retained our services to assist with operations. The company uses OASIS to maximize energy generation and revenue without violating the license requirements, which include narrow limits on lake level fluctuation for recreational interests and minimum releases for the downstream river ecosystem.
Case Study: Alberta, Canada
Identify different ways of managing water to accommodate projected growth on the Bow River.
We developed an OASIS application of the Bow River Basin as part of a 5-month CAN to help reach consensus on basin-wide management options. We tested the recommendations through a live simulation ("game") using the model. Participants were asked to make decisions with best-available information in a drought event identified only after the game was completed. The drought exercise improved understanding of the type and range of discussions needed to make decisions about managing the river and helped to refine recommendations.
Following a 100-year flood in Calgary in 2013, we linked the model with a flood visualization tool to help the public test the impacts of various flood mitigation options.
Note: If interested in more detail, please view the longer 20-minute overview by clicking on this link:
Example: Is there enough reservoir capacity to meet today's demands in a repeat of past drought events?
mode is used to see how the system should be managed in real-time based on forecasts of inflow and the operating rules developed in the planning mode.
Example: How much will the reservoir storage in the Charlottesville system drop as the current drought intensifies, and when do demand restrictions need to be invoked to preserve storage?
OASIS will allocate water throughout the basin to try and meet the operating objectives established by the stakeholders (like meeting irrigation demands and maintaining flows for fish in the river).
Example: How effective would the proposed drought plan have been in conserving storage in the 2002 drought?