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Rainwater Harvesting System Market Size By Harvesting Process (Surface Runoff, Rooftop Rainwater), By Product (Rain Barrel System, Dry System, Wet System, Green Roof System), By Installation (Direct Pumped, Indirect Pumped, Indirect Gravity), By Application (Residential, Commercial, Industrial, Agricultural), Industry Analysis Report, Regional Outlook, Application Potential, Price Trend, Competitive Market Share & Forecast, 2021 – 2027

  • Report ID: GMI4926
  • Base Year: 2020
  • Report Format: PDF

Industry Trends

Rainwater Harvesting System Market size valued at USD 6.1 billion in 2020 and will grow at a CAGR of 4% from 2021 to 2027. Rising water scarcity coupled with the growing population across the globe will drive the industry growth.

Rainwater Harvesting System Market

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The surging consumption of water in the agriculture sector is also likely to boost the adoption of these systems. The largest food producing countries including the U.S., India, China, and Brazil have reached or are close to reaching their water resource limits. Moreover, factors, such as expansion of business activities and urbanization, global climate change, and increased population, are stressing the water supply across the globe. However, rainwater harvesting is a vital technique, which helps to mitigate this impending water scarcity.

Governments in several countries have started to implement RWH policies to encourage water conservation. Some of the states in countries including the U.S., Australia, Singapore, Thailand, India, and Germany have mandated the installation of rainwater harvesting systems in new construction buildings.

Strong demand for rooftop rainwater harvester

The rooftop rainwater harvesting market dominated the global industry in 2020 propelled by its low product price and simple technique. It offers various advantages such as high-quality water, easy to construct, operate, and maintain. Besides these, rooftop rainwater harvesting also reduces the cost of pumping groundwater. In this process, rainwater is collected from the catchments of roofs and stored in reservoirs. By implementing artificial recharge methods, harvested rainwater can be stored in the sub-surface ground water reservoir and can be used for household needs. The surface runoff segment is estimated to expand at 3.7% CAGR in terms of revenue through 2027 driven by its advantage that it can collect large quantities of rainwater.

Surging application of dry system

The dry systems segment is poised to capture over 35% of the rainwater harvesting system market share in 2027 impelled by the rising application of these systems in residential and commercial sectors. Generally, the installation of a dry system is quicker and cheaper than a wet system. Additionally, it is a very simple system to install. Dry systems require low maintenance as the pipes automatically dry out between rain events and stop the build-up of contaminants. The wet systems segment is expected to see decent growth rate due to the high product cost and frequent maintenance. However, the wet system produces high-quality drinking water and offers aesthetic looks than a dry system. This is because there are minimal pipes visible, usually only the gutters and downspouts.

Rising installation of direct pumped system will spur the product sales

The direct pumped system accounted for close to 45% market revenue share in 2020 and will achieve significant gain from 2021 to 2027. This system is generally the easiest to install and is the most common type of more professional rainwater harvesting systems, particularly for domestic applications. The installation of indirect pumped systems will observe strong growth of around 3.8% CAGR till 2027 on account of great flexibility as the booster pump can be adjusted to meet the building's flow and pressure requirements.

Surging demand for system in commercial and residential sectors

Rainwater Harvesting System Market Size

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The residential segment dominated the global rainwater harvesting system market and is anticipated to exceed revenue of USD 3.4 billion by 2027. Growing usage of water and rising acceptance of the product in residential applications across the globe is set to drive the segment demand. Commercial applications of these systems are predicted to grow significantly propelled by the rising awareness regarding great benefits and cost effectiveness of these systems for commercial buildings including schools, resorts, restaurants, hotels, office buildings, and hospitals.

Harvested rainwater can be widely used for watering plants in agricultural fields. Rainwater is a soft form of water and does not impact plants negatively and can help to reduce farmers operating costs. The growing demand for water irrigation and emerging sustainable practices across the globe will support the adoption of rainwater harvesting systems in agricultural fields.

Increasing adoption of rainwater harvesting systems in Asia Pacific

Rainwater Harvesting System Market Share

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Asia Pacific dominated the rainwater harvesting system market with the demand share of more than 40% in 2020 impelled by growing population especially in India and China along with rising need for water in agricultural and residential sectors. The growing awareness regarding the benefits of rainwater harvesting systems and a surging need for water conservation due to the rising water scarcity in many Asian countries are driving the regional industry growth.

The increasing food production coupled with the rising population is fueling the demand for these systems for agricultural applications. Rainwater harvesting systems are widely implemented in rural areas of countries such as India, China, New Zealand, and Thailand.

Europe market is projected to observe substantial growth through 2027 owing to the increasing consumption of water in agricultural and industrial sectors. Germany dominated the regional market driven by the rising interest in promoting household rainwater collection mainly at the local government level. In addition, there are grants and subsidies in several towns & cities in Germany to allow householders to create rainwater tanks and water wells. Moreover, the largest project in Germany is rainwater harvesting at Frankfurt airport, which helps to save around 100,000 cubic meters of water each year.

New product launch is a key growth prospect for market players

The leading industry participants operating in the rainwater harvesting system market include GRAF Group, Kingspan Group, Heritage Tanks, Watts Water Technologies, Inc., Innovative Water Solutions LLC, Stormsaver, Water Field Technologies Pvt. Ltd., HarvestRain, WISY AG, D&D Ecotech Services, Rainharvesting Systems Ltd., and Climate, Inc. These major players are constantly focusing on expanding their product portfolio and offering innovative products.

This market research report on rainwater harvesting system includes an in-depth coverage of the industry with estimates & forecast in terms of revenue in USD million from 2017 to 2027 for the following segments:

Market, By Harvesting Process

  • Surface runoff
  • Rooftop rainwater

Market, By Product

  • Rain barrel system
  • Dry system
  • Wet system
  • Green roof system

Market, By Installation

  • Direct pumped
  • Indirect pumped
  • Indirect gravity

Market, By Application

  • Residential
  • Commercial
  • Industrial
  • Agricultural

The above information is provided on a regional and country basis for the following:

  • North America
    • The U.S.
    • Canada
  • Europe
    • Germany
    • The UK
    • France
    • Italy
    • Spain
    • Belgium
  • Asia Pacific
    • China
    • India
    • Japan
    • Australia
    • Singapore
    • Thailand
  • Latin America
    • Brazil
    • Mexico
  • MEA
    • South Africa
    • Uganda
    • Nigeria


Authors: Kiran Pulidindi, Sayan Mukherjee

Frequently Asked Questions (FAQ) :

The global industry for rainwater harvesting system was pegged at over USD 6.1 billion in 2020 and will witness around 4% CAGR up to 2027 due to rising population and prevalence of water scarcity.

Dry systems are expected to hold more than 35% share of the total market by 2027 with consistent application across residential and commercial sectors.

The direct pump system segment held around 45% revenue share of the market during 2020 owing to the ease of installation and will witness increased traction.

It has been predicted that the industry share from residential segment could surpass USD 3.4 billion by 2027 with increasing adoption of rainwater harvesting systems.

APAC rainwater harvesting system industry accounted for around 40% of the total demand share in 2020 with high need for water in agricultural and residential sectors in China and India.

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Premium Report Details

  • Published Date: Jan 2021
  • Companies covered: 17
  • Tables & Figures: 157
  • Countries covered: 19
  • Pages: 162

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