Cement Energy and Environment

then trade with others having trouble meeting their own target or bank for future use. "If you are implementing a technology and you are gaining those certificates, then you can trade it and earn money on it," Saurav Kumar, an associate at Sustainability Outlook, told Business Green. "That where the opportunity comes from." The analysis found that sector-specific process innovations would account for over half of the estimated investment potential overall, and up to 95 per cent in some industries such the aluminium and chlor alkali sectors. Meanwhile, cross-sector technologies such as variable frequency drives and waste heat recovery systems- both of which can offer major energy savings- will also play a key role, with these two accounting for 21 per cent and 24 per cent of spending respectively. Courtesy: Businessgreen.com, from internet Environmental Protection &Resource Management Climate Change & Global Warming TACKLING THE CLIMATE CHALLENGE- PART ONE While the COP21 in Paris has given a remarkable push forward to climate change mitigation, the cement industry has been working for several decades to minimise its environmental footprint - with C02-abatement being an absolute top-priority. Heidelberg Cement is one of the founding members of the Cement Sustainability Initiative (CSI), one of the largest global sustainability programs ever undertaken by a single industry sector. Climate protection has been a key issue since the inception of the CSI - under the auspices of the World Business Council of Sustainable Development (WBCSD). In 2009, the CSI developed a cement technology roadmap in collaboration with the International Energy Agency (lEA) and the WBCSD. The roadmap identifies existing and potential technologies to achieve significant emissions reductions in the cement sector by 2050. It also guides the cement industry on its way to achieve substantial emissions reductions and likewise shows the value of collaboration and partnership between the key players of the industry. The roadmap emphasises that large-scale development and deployment of Carbon Capture and Storage/Utilisation (CCS/U) capabilities and technologies are crucial in order to meet the defined C02 reduction target. Traditional levers of reducing C02 emissions in cement production include thermal and electric efficiency, use of alternative fuels and biomass, and clinker substitution. However, these traditional levers can only reduce emissions from cement production to a certain extent. The mitigation of process emissions from the calcination of limestone, which make up approximately 60% of the cement sector's C02 emissions, demands the large-scale application of CCS/CCU technologies to achieve a fully decarbonised cement production. The Low Carbon Technology Partnerships initiative (LCTPi) for cement, which HeidelbergCement signed in 2015 together with 17 other cement companies, reconfirmed the ambitions of the roadmap. Based on a multi-tiered action plan, the initiative aims at global C02 emissions reductions of 20 - 25% in addition to 'Business as Usual' by 2030. Currently the cement industry is acting largely in the shadow of the huge power sector. The emissions of the power sector are still the focus of political and societal action regarding climate change, as the industry emits up to 10 times more C02 into the atmosphere than the global cement industry altogether. Yet, as the power sector is now - driven by governmental policy and support - rapidly increasing the share of renewable energy in the overall energy mix, the cement industry will be in the full spotlight due to its high amount of process emissions . To anticipate this, Heidelberg Cement has invested in its own initiatives and engages in intensive collaboration with sector-partners such as the European Cement Research Academy (ECRA) to mitigate climate change. 65