10 results found
Akinsipe OC, Moya D, Kaparaju P, 2021, Design and economic analysis of off-grid solar PV system in Jos-Nigeria, JOURNAL OF CLEANER PRODUCTION, Vol: 287, ISSN: 0959-6526
Moya D, Budinis S, Giarola S, et al., 2020, Agent-based scenarios comparison for assessing fuel-switching investment in long-term energy transitions of the India’s industry sector, Applied Energy, Vol: 274, Pages: 1-26, ISSN: 0306-2619
This paper presents the formulation and application of a novel agent-based integrated assessment approach to model the attributes, objectives and decision-making process of investors in a long-term energy transition in India’s iron and steel sector. It takes empirical data from an on-site survey of 108 operating plants in Maharashtra to formulate objectives and decision-making metrics for the agent-based model and simulates possible future portfolio mixes. The studied decision drivers were capital costs, operating costs (including fuel consumption), a combination of capital and operating costs, and net present value. Where investors used a weighted combination of capital cost and operating costs, a natural gas uptake of ~12PJ was obtained and the highest cumulative emissions reduction was obtained, 2 Mt CO2 in the period from 2020 to 2050. Conversely if net present value alone is used, cumulative emissions reduction in the same period was lower, 1.6 Mt CO2, and the cumulative uptake of natural gas was equal to 15PJ. Results show how the differing upfront investment cost of the technology options could cause prevalence of high-carbon fuels, particularly heavy fuel oil, in the final mix. Results also represent the unique heterogeneity of fuel-switching industrial investors with distinct investment goals and limited foresight on costs. The perception of high capital expenditures for decarbonisation represents a significant barrier to the energy transition in industry and should be addressed via effective policy making (e.g. carbon policy/price).
Sachs J, Moya D, Giarola S, et al., 2019, Clustered spatially and temporally resolved global heat and cooling energy demand in the residential sector, Applied Energy, Vol: 250, Pages: 48-62, ISSN: 0306-2619
Climatic conditions, population density, geography, and settlement structure all have a strong influence on the heating and cooling demand of a country, and thus on resulting energy use and greenhouse gas emissions. In particular, the choice of heating or cooling system is influenced by available energy distribution infrastructure, where the cost of such infrastructure is strongly related to the spatial density of the demand. As such, a better estimation of the spatial and temporal distribution of demand is desirable to enhance the accuracy of technology assessment. This paper presents a Geographical Information System methodology combining the hourly NASA MERRA-2 global temperature dataset with spatially resolved population data and national energy balances to determine global high-resolution heat and cooling energy density maps. A set of energy density bands is then produced for each country using K-means clustering. Finally, demand profiles representing diurnal and seasonal variations in each band are derived to capture the temporal variability. The resulting dataset for 165 countries, published alongside this article, is designed to be integrated into a new integrated assessment model called MUSE (ModUlar energy systems Simulation Environment)but can be used in any national heat or cooling technology analysis. These demand profiles are key inputs for energy planning as they describe demand density and its fluctuations via a consistent method for every country where data is available.
Moya D, Aldas C, Kaparaju P, 2018, Geothermal energy: Power plant technology and direct heat applications, RENEWABLE & SUSTAINABLE ENERGY REVIEWS, Vol: 94, Pages: 889-901, ISSN: 1364-0321
Moya D, Paredes J, Kaparaju P, 2018, Technical, financial, economic and environmental pre-feasibility study of geothermal power plants by RETScreen-Ecuador's case study, RENEWABLE & SUSTAINABLE ENERGY REVIEWS, Vol: 92, Pages: 628-637, ISSN: 1364-0321
Moya D, Paredes J, Kaparaju P, 2018, Method for the technical, financial, economic and environmental pre-feasibility study of geothermal power plants by RETScreen - Ecuador's case study, METHODSX, Vol: 5, Pages: 524-531, ISSN: 2215-0161
Moya D, Aldas C, Lopez G, et al., 2017, Municipal solid waste as a valuable renewable energy resource: a worldwide opportunity of energy recovery by using Waste-To-Energy Technologies, 9th International Conference on Sustainability and Energy in Buildings (SEB), Publisher: ELSEVIER SCIENCE BV, Pages: 286-295, ISSN: 1876-6102
Moya D, Aldas C, Jaramillo D, et al., 2017, Waste-To-Energy Technologies: an opportunity of energy recovery from Municipal Solid Waste, using Quito - Ecuador as case study, 9th International Conference on Sustainability and Energy in Buildings (SEB), Publisher: ELSEVIER SCIENCE BV, Pages: 327-336, ISSN: 1876-6102
Hidalgo A, Villacres L, Hechavarria R, et al., 2017, Proposed integration of a photovoltaic solar energy system and energy efficient technologies in the lighting system of the UTA-Ecuador, 9th International Conference on Sustainability and Energy in Buildings (SEB), Publisher: ELSEVIER SCIENCE BV, Pages: 296-305, ISSN: 1876-6102
Moya D, Torres R, Stegen S, 2016, Analysis of the Ecuadorian energy audit practices: A review of energy efficiency promotion, RENEWABLE & SUSTAINABLE ENERGY REVIEWS, Vol: 62, Pages: 289-296, ISSN: 1364-0321
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