Updated on January 28, 2024


Created on October 19, 2020


Upcoming Update

A hybrid solar-electric water system.

Developed By
  1. Energryn
Content Partners


Product Description

Solesyto is a water heating service consisting of a hybrid solar water heater and a monthly payment system provided by Energryn in Mexico. Its spherical structure allows the heater to receive both direct and diffuse solar radiation throughout the day. Additionally, the system can be connected to the household’s electrical system to heat water during the night or on cloudy days. Solesyto is constructed with 100% recyclable components, and a repayment system allows the customers to acquire a new system once the old one has accomplished its lifetime by returning it for recycling and acquiring the new water heating system with a discount for the material.

Target SDGs

SDG 7: Affordable and Clean Energy

SDG 3: Good Health and Well-Being

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations


Competitive Landscape

Direct competitors include Solav Water Heating System.

Manufacturing/Building Method

Solesyto is manufactured in Mexico, with 100% non-metallic recyclable components and impact-resistant.

Intellectural Property Type


User Provision Model

This product can be requested directly from the manufacturer's website, where an email address and a phone number are provided. After a request, the product is delivered in 10 days to the customer's house.

Distributions to Date Status


System dimensions (m)

0.7 m height, 0.66 m diameter

Capacity (L/min)

4 L/min

Description of heater

Direct circulation heater

Description of auxiliary heating sources

Electricity; 1500 Wh, 12-120 V

Water output temperature (deg C)

Up to 40 °C (cloudy/partly cloudy day), 50 °C (partly cloudy/sunny day) and 60°C (sunny day).

Storage tank capacity (L)

80 L

Design Specifications

Solesyto is a spherical-shaped hybrid water heater, designed to maximize the incident radiation during the entire day. The black sphere containing the water is surrounded by a transparent outer sphere that catches the radiation just like a greenhouse and maintains the water temperature. This product is specially designed to be resistant to saline environments with the presence of tartar and is maintenance-free.

Product Schematics

Technical Support

Provided by the manufacturer.

Replacement Components



5-10 years

Manufacturer Specified Performance Parameters

This product aims to facilitate access to hot water to 12 million Mexicans. The manufacturer aims to develop and patent each component of the system, in order to establish a technological entry barrier. The company also targets to manufacture this product with a 100% Mexican workforce, within national facilities and using national technology. Additionally, the company aims to leverage a disruptive business model, designed to the Mexican customers, with low cost and maintenance-free. The results of the company model are savings on up to 40% in costs associated with water heating by the customers, avoiding 540 kg of CO2 emissions per year with each Solesyto.

Vetted Performance Status



Users should be sure of placing the Solesyto over a 0.8-1.5 m tall base in order to avoid overheating and damage to the electrical resistance by low water content. This product eliminates the risks associated with conventional boilers, such as explosion or fire hazards.

Complementary Technical Systems

As water circulation is conducted by gravity, the Solesyto needs to be placed on a base of a minimum of 80 cm and a maximum of 1.5 m tall. The system includes the Grynshower watering can which helps to optimize water consumption. An electrical connection for backup, temperature sensors, and a timer are also included.

Academic Research and References


Compliance with regulations

This product is certified under the ANSE ESP-07 and NOM-003-SCFI-2000 for its use in Mexico.

Evaluation methods


Other Information

The installation guide of the Solesyto can be found here. More information on Solesyto can be found here

Comments from the Community

1 Comment

  1. zanilnarsing says:

    How do you prevent Legionella contamination?

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