Session 2.1: Sustainable Energy for Water Supply and Sanitation

May 22nd, 2019

There is a critical need to properly address water supply and sanitation in Asia, as the lack of adequate waste management policies and infrastructure improvements is impacting many watersheds. This session featured discussions on water treatment for water supply, and energy generation from waste, including biogas from sludge digestion.

Moderator: Noriyuki Mori, Senior Water Resources Specialist, ADB


Water Ownership in the Age of Changing Climate Patterns
James Symons, Vice-President, Business Development, APAC, Zero Mass Water

Water, electricity, and food are significant vulnerabilities worsened by climate change. It is this critical to move beyond infrastructure-centric solutions that worsen existing water extraction rates. This presentation provided an overview of Zero Mass Water’s SOURCE Hydropanels, which use sunlight and air to make drinking water. The presentation also provided an update on the eight installation sites that were recently commissioned in the Philippines. This project has proven the viability of the technology, while paving the way for more inclusive, community-based water solution in the Philippines.

Creating Water and Sustaining Life through Carbon Neutral Technology: Creating Fresh Water from Sea Water
David Reavley, Executive Vice President, Global Sales, Solar Water Plc

At present, nearly 844,000 people are without water in any 24-hour period, as a result of which 21,000 children die each day. This presentation provided an overview of Solar Water's innovative technology, which generates fresh water from seawater, supplying multiple societal benefits: for municipalities, agriculture, industry, tourism, saving lives and many more. The solution is carbon neutral and sustainable, utilizing the concentrated power of the sun.

DHouse: A Sustainable Innovation of Passive Traditional Systems of Bahay Kubo, Designed for Urban Resilience
Luisa Daya-Garcia, Architect/Deputy Chairman, LDG Architects/Green Architecture Advocacy Philippines

DHouse is an existing modern shelter built in a flood-prone city. It is designed to address anticipated problems that affect the ecology of the built environment and urban development. The presentation highlighted practical applications through natural ventilation, daylighting, illumination control, indoor thermal control through building envelope strategies brought down the energy consumption by more than 50% from the base case. This presentation also provided an overview of the innovative shelter and how replication of DHouse’s systems and strategies to different scales and type of occupancy multiplies its direct impact on a larger scale to communities and users with the reduction of energy demand and area flooding.

Energy Screening Tool and Methodology
Stephane Bessadi, Senior Water Utility Specialist, ADB

This presentation focused on an energy screening tool and how project teams can evaluate and manage the energy impacts of municipal water and wastewater projects, with the aim of ensuring that energy use for these water systems is appropriate, optimal and sustainable.