Data to be collected for Master Energy Plan


  1. Average monthly stream flow data: Twelve average stream flow values: one for each month of the year.
  2. Height of water level in the dam above the turbine. Power (watts) = Head (in meters) x flow rate (l/sec) x 9.81. So to get an average electrical output of ~10KW, you would need a drop of 20 meters and an average flow rate of 50 lps.
  3. Slope — determines length of pipe and cost.
  4. Accessibility — affects cost / difficulty of construction.
  5. Location of power plant relative to nearest available Distance from grid — affects cost.

Solar (PV and Solar thermal (SDHW):

  1. Latitude & Longitude.  (8° 59’N, -83° 31′ W)
  2. Average monthly cloud cover data. (Retscreen, Homer, NASA SSE, onsite data collector)


  1. Area of land under cultivation and in what crop. Including greenhouses, aquaponics, etc.
  2. Estimate of agricultural waste from each (volume of prunings, etc. generated monthly). Chickens, goats, tilapia?
  3. Population (See below — used to estimate total amount of household waste and humanure generated by month.)
  4. Number and type of buildings, est. hourly occupancy. (restaurant, bar, community center, school, residences)


  1. Price of (grid) electricity. (link to ICE Tarifas, link to grid-tie solar PV economic calculator)
  2. Price of propane (cooking gas)
  3. Capital cost of each system to be evaluated. (Can only be done after preliminary design, with estimate refined as design is developed.)
  4. O&M cost of each system to be evaluated. $/yr


  1. Estimate of total anticipated population, number of households x average number of people per each. (Used to estimate loads and amount of waste produced.)
  2. Layout. Plan showing approximate distance between living units, population density (used to determine economies of scale — whether centralized systems with distribution grid make more sense than individual on-site systems without.

Sanitation, garbage collection, recycling center?

  1. Combination of central sewer & piping (in denser areas) and individual on-site (in sparser populated areas)?


  1. How it all ties together. Need to coordinate with Gary, architects and engineers designing the buildings and systems.
  2. Current plan is to build an AC-coupled microgrid.

Codes, Regulatory Agencies, Elec utility requirements, Controls…

  1. Coordination with elec utility for any grid-connected elec generation.
  2. Compliance with all relevant code requirements.
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