readmarketresearch

Description:

                                 
                            The global Solar Chimney market is growing with significant growth from last couple of years and in the year 2020, the market of Solar Chimney was valued at USD XX Million and is expected to reach USD XXX million by the end of the year 2027. , 

The report is designed to offer very important and crucial information about the Solar Chimney market and industry. For the purpose of this study, the market of Solar Chimney has been segmented into type, application, regions and countries. Each segment of the report will provide a detailed analysis of the market and in terms of quantitative information, the report will offer market revenue (USD Million), market share in %, market CAGR from 2021 to 2027. 

The report also provides a detailed qualitative analysis of the Solar Chimney market which includes Market Drivers to explain the driving factors of the market and demand, Market Challenges to explain the restraints of the market and growth and Market Opportunities to explain the upcoming trends and opportunities left for the newcomers of the market and where can the existing companies focus in order to gain competitive advantage. The Solar Chimney report also provides a detailed Porter's Five Forces, Micro and Macro Economic analysis which can help the readers and the users of the report to understand and draw a sound business decision. 

The readers of the report will have a deep  , insightful analysis that will help in understanding the market size, market share, CAGR, country specific analysis and market share for Solar Chimney market.

Market Segmentation
One of the very important chapter of Solar Chimney market report is competitive analysis. In this chapter, we have presented a detailed overview of the competition and have provided the market revenue of each company along with the market share. 

The companies mentioned in the report are:

Solar Innovations
Helioakmi
EnviroMission Limited
Specflue
Anusolar

Note: We can also add companies which are not part of the above list 

Global Solar Chimney Market Analysis By Type

Small Size
Medium Size
Large Size

In the year 2020, Small Size segment had XX% of market share and in terms of value, the Small Size market was valued at USD XX Million. ,  It is expected that Small Size will have XX% of market share by the end of year 2027 and the incremental growth from 2021 till 2027 is expected to be USD XX Million.

Global Solar Chimney Market Analysis By Application

Commercial
Residential
Industrial

Commercial segment is expected to account for XX% of market share by the end of year 2027 from XX% in 2020. The Commercial segment is expected to grow at USD XX million by the end of year 2027.

The major regions covered in the report are North America, Europe, Asia-Pacific, South America, Middle East & Africa, etc. The following regions has been further bifurcated into countries to provide an insightful analysis for the readers.

Global Solar Chimney market: regional analysis, the major regions covered in the report are:

United States
China
European Union
Rest of World (Japan, Korea, India and Southeast Asia)

The study objectives are:
To analyze and research the Solar Chimney Market status and future forecast.
To present the key Solar Chimney Market analysis of companies and present revenue, market share, and recent development for key players.
To split the breakdown data by regions, type, companies and applications.
To analyze the global and key regions market potential and advantage, opportunity and challenge, restraints and risks.
To identify significant trends, drivers, influence factors in global and regions.
To analyze competitive developments such as expansions, agreements, new product launches, and acquisitions in the market.

Frequently Asked Questions - FAQ:
How big is the opportunity for the Solar Chimney market 
What are the recent industry development that can be implemented to generate additional revenue streams 
Who are the major players operating in the Solar Chimney market  Which companies are the front runners 

                           

Table Of Contents:

                            Table of Contents

1 Report Overview
    1.1 Research Scope
    1.2 Major Manufacturers Covered in This Report
    1.3 Market Segment by Type
        1.3.1 Global Solar Chimney Market Size Growth Rate by Type (2021-2027)
        1.3.2 Small Size
        1.3.3 Medium Size
        1.3.4 Large Size
    1.4 Market Segment by Application
        1.4.1 Global Solar Chimney Market Share by Application (2021-2027)
        1.4.2 Commercial
        1.4.3 Residential
        1.4.4 Industrial
    1.5 Study Objectives
    1.6 Years Considered

2 Global Growth Trends
    2.1 Production and Capacity Analysis
        2.1.1 Global Solar Chimney Production Value 2016-2027
        2.1.2 Global Solar Chimney Production 2016-2027
        2.1.3 Global Solar Chimney Capacity 2016-2027
        2.1.4 Global Solar Chimney Marketing Pricing and Trends
    2.2 Key Producers Growth Rate (CAGR) 2021-2027
        2.2.1 Global Solar Chimney Market Size CAGR of Key Regions
        2.2.2 Global Solar Chimney Market Share of Key Regions
2.3 Industry Trends
        2.3.1 Market Top Trends
        2.3.2 Market Drivers

3 Market Share by Manufacturers
    3.1 Capacity and Production by Manufacturers
        3.1.1 Global Solar Chimney Capacity by Manufacturers
        3.1.2 Global Solar Chimney Production by Manufacturers
    3.2 Revenue by Manufacturers
        3.2.1 Solar Chimney Revenue by Manufacturers (2016-2020)
        3.2.2 Solar Chimney Revenue Share by Manufacturers (2016-2020)
        3.2.3 Global Solar Chimney Market Concentration Ratio (CR5 and HHI)
    3.3 Solar Chimney Price by Manufacturers
    3.4 Key Manufacturers Solar Chimney Plants/Factories Distribution and Area Served
    3.5 Date of Key Manufacturers Enter into Solar Chimney Market
    3.6 Key Manufacturers Solar Chimney Product Offered
    3.7 Mergers & Acquisitions, Expansion Plans

4 Market Size by Type
    4.1 Production and Production Value for Each Type
        4.1.1 Small Size Production and Production Value (2016-2020)
        4.1.2 Medium Size Production and Production Value (2016-2020)
        4.1.3 Large Size Production and Production Value (2016-2020)
    4.2 Global Solar Chimney Production Market Share by Type
    4.3 Global Solar Chimney Production Value Market Share by Type
    4.4 Solar Chimney Ex-factory Price by Type

5 Market Size by Application
    5.1 Overview
    5.2 Global Solar Chimney Consumption by Application

6 Production by Regions
    6.1 Global Solar Chimney Production (History Data) by Regions 2016-2020
    6.2 Global Solar Chimney Production Value (History Data) by Regions
    6.3 United States
        6.3.1 United States Solar Chimney Production Growth Rate 2016-2020
        6.3.2 United States Solar Chimney Production Value Growth Rate 2016-2020
        6.3.3 Key Players in United States
        6.3.4 United States Solar Chimney Import & Export
    6.4 European Union
        6.4.1 European Union Solar Chimney Production Growth Rate 2016-2020
        6.4.2 European Union Solar Chimney Production Value Growth Rate 2016-2020
        6.4.3 Key Players in European Union
        6.4.4 European Union Solar Chimney Import & Export
    6.5 China
        6.5.1 China Solar Chimney Production Growth Rate 2016-2020
        6.5.2 China Solar Chimney Production Value Growth Rate 2016-2020
        6.5.3 Key Players in China
        6.5.4 China Solar Chimney Import & Export
    6.6 Rest of World
        6.6.1 Japan
        6.6.2 Korea
        6.6.3 India
        6.6.4 Southeast Asia

7 Solar Chimney Consumption by Regions
    7.1 Global Solar Chimney Consumption (History Data) by Regions
   7.2 United States
        7.2.1 United States Solar Chimney Consumption by Type
        7.2.2 United States Solar Chimney Consumption by Application
    7.3 European Union
        7.3.1 European Union Solar Chimney Consumption by Type
        7.3.2 European Union Solar Chimney Consumption by Application
   7.4 China
        7.4.1 China Solar Chimney Consumption by Type
        7.4.2 China Solar Chimney Consumption by Application
   7.5 Rest of World
        7.5.1 Rest of World Solar Chimney Consumption by Type
        7.5.2 Rest of World Solar Chimney Consumption by Application
        7.5.1 Japan
        7.5.2 Korea
        7.5.3 India
        7.5.4 Southeast Asia

8 Company Profiles
    8.1 Solar Innovations
        8.1.1 Solar Innovations Company Details
        8.1.2 Company Description and Business Overview
        8.1.3 Production and Revenue of Solar Chimney
        8.1.4 Solar Chimney Product Introduction
        8.1.5 Solar Innovations Recent Development
    8.2 Helioakmi
        8.2.1 Helioakmi Company Details
        8.2.2 Company Description and Business Overview
        8.2.3 Production and Revenue of Solar Chimney
        8.2.4 Solar Chimney Product Introduction
        8.2.5 Helioakmi Recent Development
    8.3 EnviroMission Limited
        8.3.1 EnviroMission Limited Company Details
        8.3.2 Company Description and Business Overview
        8.3.3 Production and Revenue of Solar Chimney
        8.3.4 Solar Chimney Product Introduction
        8.3.5 EnviroMission Limited Recent Development
    8.4 Specflue
        8.4.1 Specflue Company Details
        8.4.2 Company Description and Business Overview
        8.4.3 Production and Revenue of Solar Chimney
        8.4.4 Solar Chimney Product Introduction
        8.4.5 Specflue Recent Development
    8.5 Anusolar
        8.5.1 Anusolar Company Details
        8.5.2 Company Description and Business Overview
        8.5.3 Production and Revenue of Solar Chimney
        8.5.4 Solar Chimney Product Introduction
        8.5.5 Anusolar Recent Development

9 Market Forecast
    9.1 Global Market Size Forecast
        9.1.1 Global Solar Chimney Capacity, Production Forecast 2021-2027
        9.1.2 Global Solar Chimney Production Value Forecast 2021-2027
    9.2 Market Forecast by Regions
        9.2.1 Global Solar Chimney Production and Value Forecast by Regions 2021-2027
        9.2.2 Global Solar Chimney Consumption Forecast by Regions 2021-2027
    9.3 United States
        9.3.1 Production and Value Forecast in United States
        9.3.2 Consumption Forecast in United States
    9.4 European Union
        9.4.1 Production and Value Forecast in European Union
        9.4.2 Consumption Forecast in European Union
    9.5 China
        9.5.1 Production and Value Forecast in China
        9.5.2 Consumption Forecast in China
    9.6 Rest of World
        9.6.1 Japan
        9.6.2 Korea
        9.6.3 India
        9.6.4 Southeast Asia
    9.7 Forecast by Type
        9.7.1 Global Solar Chimney Production Forecast by Type
        9.7.2 Global Solar Chimney Production Value Forecast by Type
    9.8 Consumption Forecast by Application

10 Value Chain and Sales Channels Analysis
    10.1 Value Chain Analysis
    10.2 Sales Channels Analysis
        10.2.1 Solar Chimney Sales Channels
        10.2.2 Solar Chimney Distributors
    10.3 Solar Chimney Customers

11 Opportunities & Challenges, Threat and Affecting Factors
    11.1 Market Opportunities
    11.2 Market Challenges
    11.3 Porter's Five Forces Analysis

12 Key Findings

13 Appendix
    13.1 Research Methodology
        13.1.1 Methodology/Research Approach
            13.1.1.1 Research Programs/Design
            13.1.1.2 Market Size Estimation
            13.1.1.3 Market Breakdown and Data Triangulation
        13.1.2 Data Source
            13.1.2.1 Secondary Sources
            13.1.2.2 Primary Sources
    
    13.2 Disclaimer



                        

TABLES AND FIGURES

                         List of Tables and Figures

    Figure Solar Chimney Product Picture
    Table Solar Chimney Key Market Segments
    Table Major Manufacturers Solar Chimney Covered in This Report
    Table Global Solar Chimney Market Size Growth Rate by Type 2021-2027 (K Units) & (Million US$)
    Figure Global Solar Chimney Sales Market Shar by Type 2016-2027
    Figure Small Size Figures
    Table Major Manufacturers of Small Size
    Figure Medium Size Figures
    Table Major Manufacturers of Medium Size
    Figure Large Size Figures
    Table Major Manufacturers of Large Size
    Table Global Solar Chimney Market Share by Application 2021-2027 (K Units)
    Figure Commercial Use Case
    Figure Residential Use Case
    Figure Industrial Use Case
    Figure Solar Chimney Report Years Considered
    Figure Global Solar Chimney Production Value Growth Rate 2016-2027 (Million US$)
    Figure Global Solar Chimney Production 2016-2027 (K Units)
    Figure Global Solar Chimney Capacity 2016-2027 (K Units)
    Table Key Manufacturers Solar Chimney Capacity (K Units)
    Figure Global Solar Chimney Price 2016-2027 (USD/Unit)
    Table Global Solar Chimney Market Size of Key Regions (Million USD) & (K Units)
    Table Global Solar Chimney Growth Rate of Key Regions 2021-2027 (Million USD)
    Table Global Solar Chimney Market Share for of Regions 2021-2027 (K Units)
    Table Market Top Trends
    Table Global Solar Chimney Capacity by Manufacturers (2016-2020) (K Units)
    Table Global Solar Chimney Capacity Market Share by Manufacturers (2016-2020)
    Table Global Solar Chimney Production by Manufacturers (2016-2020) (K Units)
    Table Global Solar Chimney Production Share by Manufacturers (2016-2020)
    Figure Global Solar Chimney Production Share by Manufacturers in 2020
    Table Solar Chimney Revenue by Manufacturers (2016-2020) (Million USD)
    Table Solar Chimney Revenue Share by Manufacturers (2016-2020)
    Figure Solar Chimney Value Share by Manufacturers in 2020
    Table Global Solar Chimney Manufacturers Market Concentration Ratio (CR5 and HHI)
    Table Solar Chimney Price by Manufacturers 2016-2020 (USD/Unit)
    Table Key Manufacturers Solar Chimney Plants/Factories Distribution
    Table Key Manufacturers Solar Chimney Area Served
    Table Date of Key Manufacturers Enter into Solar Chimney Market
    Table Key Manufacturers Solar Chimney Product Type
    Table Mergers & Acquisitions, Expansion Plans
    Table Global Small Size Production and Production Value (2016-2020) (K Units) & (Million US$)
    Table Global Medium Size Production and Production Value (2016-2020) (K Units) & (Million US$)
    Table Global Large Size Production and Production Value (2016-2020) (K Units) & (Million US$)
    Table Global Solar Chimney Production by Type (2016-2020) (K Units)
    Table Global Solar Chimney Production Share by Type (2016-2020)
    Figure Global Solar Chimney Production Market Share by Type (2016-2020)
    Figure Global Solar Chimney Production Market Share by Type in 2020
    Table Global Solar Chimney Production Value by Type (2016-2020) (Million US$)
    Table Global Solar Chimney Production Value Share by Type (2016-2020)
    Figure Global Solar Chimney Production Value Market Share by Type (2016-2020)
    Figure Global Solar Chimney Production Value Market Share by Type in 2020
    Table Solar Chimney Ex-factory Price by Type 2016-2020 (USD/Unit)
    Table Global Solar Chimney Consumption by Application (2016-2020) (K Units)
    Table Global Solar Chimney Consumption Share by Application (2016-2020)
    Figure Global Consumption Solar Chimney Market Share by Application (2016-2020)
    Table Global Solar Chimney Production by Regions 2016-2020 (K Units)
    Table Global Solar Chimney Production Market Share by Regions 2016-2020
    Figure Global Solar Chimney Production Market Share by Regions 2016-2020
    Figure Global Solar Chimney Production Market Share by Regions in 2020
    Table Global Solar Chimney Production Value by Regions 2016-2020 (Million USD)
    Table Global Solar Chimney Production Value Market Share by Regions 2016-2020
    Figure Global Solar Chimney Production Value Market Share by Regions 2016-2020
    Figure Global Solar Chimney Production Value Market Share by Regions in 2020
    Table United States Solar Chimney Production and Value 2016-2020 (K Units) & (Million USD)
    Figure United States Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure United States Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Table United States Solar Chimney Import & Export (K Units)
    Table European Union Solar Chimney Production and Value 2016-2020 (K Units) & (Million USD)
    Figure European Union Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure European Union Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Table European Union Solar Chimney Import & Export (K Units)
    Table China Solar Chimney Production and Value 2016-2020 (K Units) & (Million USD)
    Figure China Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure China Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Table China Solar Chimney Import & Export (K Units)
    Figure Japan Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure Japan Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Figure Korea Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure Korea Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Figure India Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure India Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Figure Southeast Asia Solar Chimney Production Growth Rate 2016-2020 (K Units)
    Figure Southeast Asia Solar Chimney Production Value Growth Rate 2016-2020 (Million USD)
    Table Global Solar Chimney Consumption by Regions 2016-2020 (K Units)
    Table Global Solar Chimney Consumption Market Share by Regions 2016-2020
    Figure Global Solar Chimney Consumption Market Share by Regions 2016-2020
    Figure Global Solar Chimney Consumption Market Share by Regions in 2020
    Figure United States Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Table United States Solar Chimney Consumption by Type (2016-2020) (K Units)
    Figure United States Solar Chimney Consumption Market Share by Type in 2020
    Table United States Solar Chimney Consumption by Application (2016-2020) (K Units)
    Figure United States Solar Chimney Consumption Market Share by Application in 2020
    Figure European Union Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Table European Union Solar Chimney Consumption by Type (2016-2020) (K Units)
    Figure European Union Solar Chimney Consumption Market Share by Type in 2020
    Table European Union Solar Chimney Consumption by Application (2016-2020) (K Units)
    Figure European Union Solar Chimney Consumption Market Share by Application in 2020
    Figure China Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Table China Solar Chimney Consumption by Type (2016-2020) (K Units)
    Figure China Solar Chimney Consumption Market Share by Type in 2020
    Table China Solar Chimney Consumption by Application (2016-2020) (K Units)
    Figure China Solar Chimney Consumption Market Share by Application in 2020
    Figure Rest of World Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Table Rest of World Solar Chimney Consumption by Type (2016-2020) (K Units)
    Figure Rest of World Solar Chimney Consumption Market Share by Type in 2020
    Table Rest of World Solar Chimney Consumption by Application (2016-2020) (K Units)
    Figure Rest of World Solar Chimney Consumption Market Share by Application in 2020
    Figure Japan Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Figure Korea Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Figure India Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Figure Southeast Asia Solar Chimney Consumption Growth Rate (2016-2020) (K Units)
    Table Solar Innovations Company Details
    Table Solar Innovations Description and Business Overview
    Table Solar Innovations Solar Chimney Production (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2016-2020)
    Table Solar Innovations Solar Chimney Production Growth Rate (2016-2020)
    Table Solar Innovations Solar Chimney Production Market Share in Global Market
    Table Solar Innovations Recent Development
    Table Helioakmi Company Details
    Table Helioakmi Description and Business Overview
    Table Helioakmi Solar Chimney Production (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2016-2020)
    Table Helioakmi Solar Chimney Production Growth Rate (2016-2020)
    Table Helioakmi Solar Chimney Production Market Share in Global Market
    Table Helioakmi Recent Development
    Table EnviroMission Limited Company Details
    Table EnviroMission Limited Description and Business Overview
    Table EnviroMission Limited Solar Chimney Production (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2016-2020)
    Table EnviroMission Limited Solar Chimney Production Growth Rate (2016-2020)
    Table EnviroMission Limited Solar Chimney Production Market Share in Global Market
    Table EnviroMission Limited Recent Development
    Table Specflue Company Details
    Table Specflue Description and Business Overview
    Table Specflue Solar Chimney Production (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2016-2020)
    Table Specflue Solar Chimney Production Growth Rate (2016-2020)
    Table Specflue Solar Chimney Production Market Share in Global Market
    Table Specflue Recent Development
    Table Anusolar Company Details
    Table Anusolar Description and Business Overview
    Table Anusolar Solar Chimney Production (K Units), Revenue (Million US$), Price (USD/Unit) and Gross Margin (2016-2020)
    Table Anusolar Solar Chimney Production Growth Rate (2016-2020)
    Table Anusolar Solar Chimney Production Market Share in Global Market
    Table Anusolar Recent Development
    Table Global Solar Chimney Capacity, Production Forecast 2021-2027 (K Units)
    Figure Global Solar Chimney Capacity Forecast 2021-2027 (K Units)
    Figure Global Solar Chimney Production Forecast 2021-2027 (K Units)
    Figure Global Solar Chimney Production Value Forecast 2021-2027 (Million US$)
    Table Global Solar Chimney Production Value Forecast 2021-2027 (Million US$)
    Table Global Solar Chimney Production Forecast by Regions 2021-2027 (K Units)
    Table Global Solar Chimney Production Market Share Forecast by Regions 2021-2027
    Table Global Solar Chimney Production Value Forecast by Regions 2021-2027 (Million US$)
    Table Global Solar Chimney Consumption Forecast by Regions 2021-2027 (K Units)
    Table Global Solar Chimney Consumption Market Share Forecast by Regions 2021-2027
    Table United States Solar Chimney Production and Production Value Forecast 2021-2027 (K Units) & (Million US$)
    Figure United States Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Table United States Solar Chimney Production Value Forecast 2021-2027 (Million US$)
    Figure United States Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Table European Union Solar Chimney Production and Production Value Forecast 2021-2027 (K Units) & (Million US$)
    Figure European Union Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Table European Union Solar Chimney Production Value Forecast 2021-2027 (Million US$)
    Figure European Union Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Table China Solar Chimney Production and Production Value Forecast 2021-2027 (K Units) & (Million US$)
    Figure China Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Table China Solar Chimney Production Value Forecast 2021-2027 (Million US$)
    Figure China Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Figure Japan Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Figure Japan Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Figure Korea Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Figure Korea Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Figure India Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Figure India Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Figure Southeast Asia Solar Chimney Production Growth Forecast 2021-2027 (K Units)
    Figure Southeast Asia Solar Chimney Consumption Forecast 2021-2027 (K Units)
    Table Global Solar Chimney Production Forecast by Type 2021-2027 (K Units)
    Figure Global Solar Chimney Production Forecast by Type 2021-2027 (K Units)
    Figure Global Solar Chimney Production Market Share Forecast by Type 2021-2027
    Table Global Solar Chimney Production Value Forecast by Type 2021-2027 (Million US$)
    Figure Global Solar Chimney Production Value Forecast by Type 2021-2027 (Million US$)
    Figure Global Solar Chimney Production Value Market Share Forecast by Type 2021-2027
    Table Global Solar Chimney Consumption Forecast by Application 2021-2027 (K Units)
    Figure Global Solar Chimney Consumption Forecast by Application 2021-2027 (K Units)
    Figure Global Solar Chimney Consumption Market Share Forecast by Application 2021-2027
    Figure Solar Chimney Value Chain
    Table Solar Chimney Distributors List
    Table Solar Chimney Customers List
    Table Porter's Five Forces Analysis
    Table Research Programs/Design for This Report
    Figure Bottom-up and Top-down Approaches for This Report
    Figure Data Triangulation