SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:mdh-41231"
 

Sökning: onr:"swepub:oai:DiVA.org:mdh-41231" > Economic assessment...

Economic assessment of photovoltaic water pumping integration with dairy milk production

Zhang, C. (författare)
Energy Processes Division, Royal Institute of Technology, Stockholm, Sweden
Campana, Pietro Elia, 1984- (författare)
KTH,Mälardalens högskola,Framtidens energi,Energy Processes Division, Royal Institute of Technology, Stockholm, Sweden,Energiprocesser,Malardalen Univ, Sch Business Soc & Engn, SE-72123 Vasteras, Sweden.
Yang, J. (författare)
School of Humanities and Economic Management, China University of Geosciences, Beijing, China
visa fler...
Yu, C. (författare)
Department of Earth System Science, Tsinghua University, Beijing, China
Yan, Jinyue, 1959- (författare)
KTH,Mälardalens högskola,Framtidens energi,Energy Processes Division, Royal Institute of Technology, Stockholm, Sweden,Energiprocesser,Malardalen Univ, Sch Business Soc & Engn, SE-72123 Vasteras, Sweden.
Yu, Chaoqing (författare)
Tsinghua Univ, Dept Earth Syst Sci, Beijing 100084, Peoples R China.
Yang, Jin (författare)
China Univ Geosci, Sch Humanities & Econ Management, Beijing 100083, Peoples R China.
Zhang, Chi (författare)
KTH,Energiprocesser
visa färre...
 (creator_code:org_t)
Elsevier Ltd, 2018
2018
Engelska.
Ingår i: Energy Conversion and Management. - : Elsevier Ltd. - 0196-8904 .- 1879-2227. ; 177, s. 750-764
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • As dairy consumption grows, domestic dairy farms face challenges in reducing the cost of feeds and the production of high-quality milk for market demands. This paper aims to introduce and integrate solar energy into the milk production chain to investigate its economic performance. By collecting data on milk production processes from 11 dairy farms in China, we quantified electricity usage and costs of milk production to identify the best and worst cases. Crop yields response to the water demand and the electricity requirements of the dairy farms were considered. The study simulated scenarios of self-sufficiency at 20%, 80%, and 100%, in the identified farms by integrating a photovoltaic water pumping (PVWP) system to provide both power and water for alfalfa and other feeds’ irrigation and subsequent milk production. We evaluated annual discounted cost, revenue and net profit under each scenario and case. The results showed that a dairy farm with an integrated PVWP system and self-sufficient feeds would lead to value add-ins, such as electricity saving with solar energy generation, economic cost saving of crops, and CO2 emission reduction. The analysis on return on investment (ROI) and internal rate of return (IRR) revealed that not all the self-sufficient feeds can bring positive marginal profit. Among the investigated scenarios and cases, the dairy farm marked out by the highest ROI with 3.12 and IRR with 20.4%, was the farm where the integrated PVWP system was used to reach 20% self-sufficiency (self-production of only alfalfa). The other scenarios and cases with higher levels of self-sufficiency showed lower ROIs and IRRs. This indicates that high self-production levels of feeds decrease the total profit due to high investment cost. Sensitivity analyses of crop price and operational cost were conducted for ROI with single and double factor approaches. Scale and production of feeds proportions should be carefully considered in improving the economic performance of dairy milk production.

Ämnesord

ENGINEERING AND TECHNOLOGY  -- Environmental Engineering -- Energy Systems (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Naturresursteknik -- Energisystem (hsv//swe)
TEKNIK OCH TEKNOLOGIER  -- Naturresursteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Environmental Engineering (hsv//eng)

Nyckelord

China
Economic assessment
Milk productivity
Photovoltaic water pumping
Solar power

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy