Theme: Innovation

The WSUP report A Guide to Simplified Sewer Systems in Kenya describes how a pilot project in the informal settlement of Mukuru has demonstrated a cost-effective way to bring decent sanitation to some communities in Kenya: simplified sewers.

New evidence shows that simplified sewer networks, which are much shallower and more flexible than traditional sewer systems, can form part of the solution to sanitation challenges faced by low-income urban communities in Kenya’s capital, Nairobi. In the city’s densely packed informal communities, most people lack access to decent sanitation.

The practical and financial challenges of addressing this crisis are well documented, but the alternative of simplified sewers networks opens up new possibilities for better sanitation which could benefit millions of Kenyans.

A summary: the Nairobi simplified sewers pilot

In cities across Africa, rapidly expanding low-income communities (LICs) pose unique technical and social challenges to utilities in expanding services – but they also present an opportunity to expand the customer base and generate revenues. COVID-19 is placing huge additional pressures on the financial viability of utilities, exacerbating the need for innovative service delivery models to this segment of the customer base. In the context of short and long-term challenges posed by COVID-19, water utilities must take every measure available to improve the efficiency of operations: service quality and attention to the customer will be even more important; greater control will be required over the distribution network; and billing and revenues will need to be maximized to support the bottom line.

Smart Water Meters are a new technology with the potential to assist utilities in this process of transformation. The model offers greater control for the customer, through a flexible prepayment tailored to the spending habits of low-income households; and greater control for the utility, enabling real-time data on water demand across the supply area, and supporting a shift from reactive firefighting to preventative planning. Pilots of the technology to date have produced good results; however, more testing is needed, particularly in LICs. One project expected to inform the evidence base is a pilot of 500 smart meters recently underway in Watamu, in the Kenyan district of Malindi.

This article is part of a review by The Veolia Institute – check out the full publication here.

Core to WSUP’s guiding strategy is the belief that market-based solutions will contribute significantly to sustainable progress in tackling the world’s biggest challenge: water and sanitation for all.

However, financially viable business models targeting the poorest residents are just not very many.

Our work with local service providers, social enterprises, and WASH-driven start-ups, seeks to de-risk entry into the water and sanitation market, and drive growth for the business models with the potential to create lasting change.

The ideas outlined in this report explores how social enterprises and sustainable investors can work together to make SDG 6 a reality.

Read more about this report on NextBillion.