Good practice

Perú MERESE — Marco Nacional de PSA por Tarifas de Agua para la Conservación de Cuencas (SUNASS)

Ley 30215 (2014): empresas de saneamiento peruanas financian PSA vía tarifas. SUNASS autorizó 43/50; USD 50M+ invertidos; 8.900+ ha protegidas; 12M beneficiarios. El compromiso de SEDAPAL (USD 25M) es el mayor aporte en SbN de una empresa de agua en Latinoamérica.

43 of 50

Empresas de saneamiento autorizadas

USD 50M+

Inversión movilizada

8,900+ ha

Área de cuenca protegida

12M

Personas beneficiadas

USD 25M

Compromiso de SEDAPAL

Perú MERESE — Marco Nacional de PSA por Tarifas de Agua para la Conservación de Cuencas (SUNASS)

Details

Maturity: Scaling
Promoter: SUNASS / Ministerio del Ambiente (MINAM)
Period: 2007–present
Keywords: water utility, government, watershed conservation, nature-based solutions

Context

El marco MERESE de Perú (Ley 30215, 2014) obliga a las empresas de saneamiento a financiar pagos por servicios ecosistémicos de cuenca mediante sus tarifas, bajo regulación de la SUNASS.

Results

La SUNASS ha autorizado 43 de 50 empresas, movilizando más de USD 50M y protegiendo más de 8.900 ha en beneficio de 12M de personas; el compromiso de USD 25M de SEDAPAL es el mayor en soluciones basadas en la naturaleza de una empresa de agua en América Latina.

Implementation

Implementation detail (cost, timeline, staffing, conditions for success) is not yet available for this practice.

Data sources

Where this practice's information was retrieved from, and when.

C-NAPSE web research — accessed 2026-06-22
SUNASS / Ministerio del Ambiente (MINAM) — accessed 2026-06-22
Forest Trends: Peru Scaling Up NBS for Water Resilience — accessed 2026-06-22
Mongabay: Peru tackling water scarcity with NBS (Nov 2022) — accessed 2026-06-22
GGGI–SUNASS: Study on PES Readiness of Water Utilities — accessed 2026-06-22
MINAM MERESE Registry — accessed 2026-06-22

Attachments

Source image

Quality score: 60/100

How is this calculated?

Evidence: Observational / pre–post

Top 16% in this catalogue (335 scored practices)

Scores cluster high, so position within the catalogue is often more telling than the number alone.

Evaluation

Evaluated by C-NAPSE

Score profile — the dimensions behind the score — how it's computed

Carbon — sequestration / storage, evidenced1/3

Upstream revegetation and Andean wetland (bofedal) protection yield carbon co-benefits but sequestration is neither certified nor the programme's primary objective.

Biodiversity — conservation / improvement, evidenced2/3

Conservation agreements protect Andean native forests and bofedales; 240+ communities engaged and native-species revegetation documented, but systematic national biodiversity monitoring is absent.

Water & soil — retention, infiltration, erosion control3/3

Core objective directly evidenced: SEDACUSCO built 75+ km infiltration trenches; SEDAPAL invested US$25M in Lima's source watershed; 43 utilities linked tariffs to conservation; hydrological restoration outcomes peer-reviewed.

Fire resilience — risk reduction, evidenced0/3

Fire risk reduction is not an objective or documented outcome of the MERESE framework.

Governance, certification & transferability3/3

National law (30215), independent regulatory oversight (SUNASS), publicly accessible MERESE Registry, 49 utility authorisations, GGGI-assessed replication readiness; widely cited as model for global adoption.

Cite this

Evidoria. Perú MERESE — Marco Nacional de PSA por Tarifas de Agua para la Conservación de Cuencas (SUNASS). Persistent ID: fbab060d-075e-4568-a26a-0dbb2ddf60e1.

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