Ashish Mishra, et. al. International Journal of Engineering Research and Applications www.ijera.com ISSN: 2248-9622, Vol. 10, Issue 10, (Series-I) October 2020, pp. 38-42 www.ijera.com DOI: 10.9790/9622-1010013842 38 | Page Adaptation of an existing building into a green building Ashish Mishra*, Bharat Nagar**, Jagriti Gupta***, Lavanya Subramanian**** *(Department of Civil Engineering, Jagannath University, Jaipur **(Department of Civil Engineering, Jagannath University, Jaipur ***(Department of Civil Engineering, Jagannath University, Jaipur ****(PGDM-Financial Management, FORE School of Management, New Delhi ABSTRACT Buildings consume about 40% of the total energy of the world and hence it is essential to adopt the practice of sustainable buildings. This paper aims to redesign an existing building according to the green building norms. It also focuses on the energy efficiency and economic feasibility while redesigning the same. The hotel’s natural resource utilization and energy consumption is immense and this also has an impact on the environment. This study stresses on the benefits that would be obtained like reduced energy consumption and reduced wastage of water along with other materials thereby leading to cost savings later on. The redesigning of hotel is done using the benchmarks provided by GRIHA for subsequent analysis. The costing and relevant savings calculations for the business is also conducted to check the economic feasibility of the research. Keywords – Green buildings, Renewable energy, GRIHA, Natural Ventilation, Wastage --------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 01-10-2020 Date of Acceptance: 14-10-2020 --------------------------------------------------------------------------------------------------------------------------------------- I. INTRODUCTION Renewable energy is essential part of sustainable development. Today civil and environmentalengineeringprofessionalsareworking side by side to understand new construction methods which allows the buildings to use less energy than before. Earlier the conventional methods of constructionswereusedwhetheritwastorecreatean existing building or to start a new building from ground up. With the advent of technological advancements, it is now possible to construct buildings which are superior in quality and they also use less energy. [1] One such modification was done on the building in Jaipur, it is a hotel building and these buildings are known to use more energy than a residential building. Hotel management wanted to modifythecurrentbuildinginordertomakeitenergy efficient, it is an initiative taken by the management of hotel to have a GRIHA rating. GRIHA has a star rating system and it is necessary for the building to comply with certain group of norms stated by GRIHAtobeastarratedbuilding.Toachievethestar rating some technologically advanced methods of modificationswereusedwhichhadreducedtheusage of energy in the building.[2] 1.1. Certification System In India, the Indian business council (IBC) administersLeadershipinEnergyandEnvironmental Design(LEED).AndtheGreenRatingforIntegrated Habitat Assessment (GRIHA) was developed by Ministry of New and Renewable Energy (MNRE) and The Energy and Resources Institute (TERI). [3] TheratingsysteminLEEDprogramisvoluntaryand is based on rewarding points on the basis of evaluation on water savings, material selection, energy efficiency, sustainable site development and environmental quality indoors. There are various steps involved like registration of the GB, credit interpretation followed by certification and documentation of the same and lastly, certification award. The certification is provided under 4different levels i.e. Certified, Silver, Gold or Platinum. So, to obtain a LEED certificate can be worth millions of rupees but the cost of operational savings may be worth it. GRIHA was adopted to control the drawbacks of the LEED program in India to make it suitable here [4]. There is a rating system which involves parameters like consumption of water and power/energy, generation of water and integration of renewable energy; and awards a rating between 1-5 following the evaluation. This is also voluntary in nature but the MNRE has directed the government buildings to be constructed according to GRIHA standards to obtain support for funding. GRIHA has now more preferred green certification program and is mandated for public entities. The rating systemin RESEARCH ARTICLE OPEN ACCESS