integration of solid oxide fuel cells and ... - Ea Energianalyse

2.4 Distributed Generation (DG)
2.4. Distributed Generation (DG)
As described in chapter 1 distributed generation has many applications.
Hotels are appropriate for a case study since they are often placed in
areas with a hot climate and since the guests expect comfort, hotels are
normally equipped with air conditioning. There is also a substantial
demand for electricity (for misc appliances) and hot water (primarily for
showering). It could be expected that the demand for the three end-use
products (electricity, cooling and hot water) have a good match.
Since traveling still increases both for business and pleasure, more
hotels are being build and these require air conditioning, meaning an
increasing demand for cooling and thus a potential increase of the market
for DG.
So it is examined if a Hotel could use a combination of a SOFC and
an ABS (Absorption cooling) unit to provide electricity, cooling, and heat
for domestic hot water in an economical way. The input parameters and
assumptions are as follows:
Input/assumptions
• 230 room hotel (18.000m 2 )
• 2 different climates - normal (hot summer, cold winter) vs hot all
year
• COP E AC = 4,0
• COP ABS = 1,3
• η SOFC = 0,5
• Gas price 0,20DKK/kWh (see appendix A.6 page 224) [17]
• Electricity price = 0,75DKK/kWh (see appendix A.6 page 224) [10]
+ [11]
• SOFC price 2.650 DKK/kW (=$500/kW) [16]
• ABS price 3.700DKK/kW 8
8 Derived from the market investigation in appendix A.5 page 221
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