Water related investments and particularly nature-based solutions (NbS) for water security deliver multiple benefits for a range of stakeholders. When monetised, these benefits can generate a revenue stream and mobilise additional private finance sources. Member States signalled high interest in these solutions.
The Nature Conservancy (TNC) supports analysis on how to monetise these benefits and sets up water funds to coordinate and pool the various stakeholders. Water funds can operate as coordination platforms and as collective investment mechanisms to mobilise upfront repayable finance as well as to generate continuous revenue streams to pay back investment in NbS for water security.
The Greater Cape Town Water Fund, for instance, financed the removal of invasive plant species, which lead to increased water supply that yielded in water savings two months worth of water. Other financing examples include the performance-based Environmental Impact Bond in Washington DC for storm water runoff, and the Netherland’s Sovereign Green Bond for Natural Flood Management (see PowerPoint slides and resources further below). The Sustainable Water Impact Fund is another financing model that invests in rewetting measures in failing farms in Western United States, Australia and Chile, hence contributing to groundwater recharge. In California, recharging groundwater is valorised and financially remunerated, and thus provides a funding stream to repay the upfront investment cost. This example highlights the importance of a conducive regulatory framework that supports the valorisation of accruing benefits, which is the basis of effective financing. In this context, biodiversity credit markets were mentioned as another example of a regulatory setting that can help monetise benefits of NbS for water security.
TNC is currently preparing the first water fund in Europe in East Anglia, UK. First analyses on potential funding sources for the intervention found that more than 50 sources were assigned to NbS in a fragmented manner. There is hence potential for better coordination of the funding sources into a single funding structure. In the EU, for example, farmers need to apply for funding for environmental practices on an individual basis, whereas landscape level interventions (in coordination with other farmers) would be more effective. A more strategic coordination among actors and stakeholders to finance landscape-based interventions is hence vital.
Further, it was reported that stakeholders need reliable estimates on potential benefits before they commit to such a financing structure. There is a need for methods and data to assess the benefits relevant to a stakeholder, as well as performance records of successful examples.
While numerous successful examples exist, transaction costs of such platforms and financing models can be high. Further efforts are needed to reduce transaction costs over time and to establish mechanisms that do not only cover the initial investment but also serve as operational investment platform in the long run.