A resource for faith-based organizations as they transition to sustainable energy and zero GHG emissions

Pre-Conference Workshop-2019

Pre-Conference Workshop:
“Ball-Park” Estimating

Definition: A ballpark figure is a rough numerical estimate or approximation commonly used to estimate current or future results

Overview

A Workshop on “Ball Park” Estimating of Solar and Heat Pump systems was provided prior to the Conference – followed by a tour of the renovated First Universalist facility.

The Goals of the workshop were simple:

Start with your organization’s current electric & natural gas annual usage (bills) to define your energy needs

  1. Quantify the “harm” the current fossil fuel system is doing (i.e. metric tonnes of CO2)
  2. Envision a new sustainable 21st-century energy system that has zero GHG emissions (using solar PV and some form of heat pump technology for heating and cooling)
  3. Estimate the  approximate (“Ball Park”) size and cost of a sustainable solar photovoltaic (PV) system for generating all of your electrical power (with zero emissions)
  4. Estimate the  approximate size and cost of a sustainable heat pump system for all of your heating and cooling requirements (with zero emissions)
  5. Update the power requirements, solar size and cost to include the heat pump system
  6. Construct a “Revenue-Neutral” member-funded approach (that does not require a change in the organization’s operating budget) as a baseline for comparing other options. 

Session Title

Facilitators

INTRODUCTION   (PowerPoint) (pdf)

  

1) Estimate harm caused by existing operations;
    (e.g. tonnes of CO2)  Worksheets: (Word)  (pdf)
                                      Spreadsheets: Externalities (Excel)

Milt Hetrick

2) Identify options for zero GHG emissions;
Worksheets: (Word)  (pdf)

Milt Hetrick

3) Estimate the size of Solar System required;
Worksheets: (Word)  (pdf)

Compare to Google Sunroof


(Caution:  Ignore Google Sunroof financial information because it does not pertain to a non-profit organization.  The graphics showing the potential of roof area is useful) 

John Bringenberg

4) Estimate the size and power requirements of a Heat Pump system;  Worksheets: (Word)  (pdf)

Milt Hetrick

5) Recycle on the total energy system power requirements and size of the solar system; Worksheets: (Word)  (pdf)

Milt Hetrick

6) Create a ‘revenue-neutral’ member-financed funding approach -No change in your current operating budget.

Worksheets: (Word)  (pdf)
Spreadsheets: Externalities (Excel)

  • Show a financial gain over 20 years.  
  • Use as a “baseline” to compare other funding approaches.

Milt Hetrick

John Bringenberg

Questions / Concerns / Feedback

·  Explanation of the 1/100 scale model

·  Tour of First Universalist Renovated Facility