Household air pollution mitigation with integrated biomass/cookstove strategies in Western Kenya

Sammanfattning

Traditional cooking is today's largest global environmental health risk. Over 640 million people in Africa are expected to rely on biomass for cooking by 2040. In Kenya, cooking inefficiently with wood and charcoal persists as a cause of deforestation and household air pollution. This research analyses the effects of four biomass cookstove strategies on reducing air pollutant emissions in Kisumu County between 2015 and 2035 using the Long-Range Energy Alternatives Planning system. The Business as Usual scenario (BAU) was developed considering the historical trends in household energy use. Energy transition scenarios to Improved Cookstoves (ICS), Pellet Gasifier Stoves (PGS) and Biogas Stoves (BGS) were applied to examine the impact of these systems on energy savings and air pollution mitigation. An integrated scenario (INT) was evaluated as a mix of the ICS, PGS and BGS. The highest energy savings, in relation to the BAU, are achieved in the BGS (30.9%), followed by the INT (23.5%), PGS (19.4%) and ICS (9.2%). The BGS offers the highest reduction in the GHG (37.6%), CH4 (94.3%), NMVOCs (85.0%), CO (97.4%), PM2.5 (64.7%) and BC (48.4%) emissions, and the PGS the highest reduction in the N2O (83.0%) and NOx (90.7%) emissions, in relation to the BAU.

Nyckelord

Biomass pellets; Biogas; Cookstoves; Energy forecasting; Global warming; Local air pollutants

Publicerad i

Energy Policy
2019, volym: 131, sidor: 168-186
Utgivare: ELSEVIER SCI LTD

SLU författare

• Nyberg, Gert

  • Institutionen för skogens ekologi och skötsel, Sveriges lantbruksuniversitet
    

Globala målen (SDG)

SDG7 Hållbar energi för alla
SDG13 Bekämpa klimatförändringarna
SDG15 Ekosystem och biologisk mångfald

UKÄ forskningsämne

Energisystem
Miljövetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.enpol.2019.04.026

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/100778