The inefficiencies assumptions are based on the manufacturers' specifications and input from the PNSY operating staff.
The PNSY staff was aware that the steam system had high losses.
An estimated 59% of all this fuel used by PNSY is attributable to the generation and distribution of heat and electricity, both on and off the shipyard, of which 20% is grid-purchased electricity.
The era of construction of the buildings at the PNSY range from the early 1800s up to the present.
Of the total 1,010,140 MMBtu (296,043 MWh) purchased by PNSY, only about 368,000 MMBtu (108,000 MWh), or 37%, is used for buildings and industrial process.
For PNSY, most of the buildings are old and many are designated as historical and will be in need of a deep retrofit in the near future.
The supply and distribution analysis of PNSY was broken down into four different groups of buildings based on their current heating sources.
The costing for this scenario was done using RS Means Per Square Foot costing estimates and the total was multiplied by the PNSY mark-up rate.
This analysis provides a rough estimate of the cost of attaining the net zero goals for PNSY.
2]) of buildings at PNSY for a cost of $32,000,000.
Navy installations can purchase RECs (renewable energy credits), but PNSY leadership does not want to exercise that option to attain the targets.