Author Archives: Bob

SGEV Utility Guidelines Updated

Clause 3 – Utilities and Energy Plan UPDATE: Jan 30, 2014: ICE power is now available at the lower end of the property and will be extended up along the main road to the community center. As time goes on … Continue reading

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Battery technologies Li-ion vs Lead-Acid

A good article from HomePower: Lithium-Ion Batteries for Off-Grid Systems Are They a Good Match? By: Randy Richmond Issue Date Dec 16, 2012 For decades, lead-acid battery technology has been the mainstay of battery-based renewable energy systems, providing reliable storage … Continue reading

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SGEV Solar PV notes and suppliers

Energy matters article comparing Solaredge Power optimizers and inverters with micro-inverters. Micro-Inverters Vs. Power Optimizers “Micro-inverters had their share of the limelight, but the victor of the battle between solar panel level add-on electronics may be the power optimizers.” Case … Continue reading

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Energy Storage, Load Balancing

Problem # 1: Let’s say we have a river able to generate 100 kW.  In a 24 hour period, it produces 100 * 24 = 2,400 kWh.  Let’s also say that we have a total daily demand of 2,400 KWH, … Continue reading

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Holon design notes

Each cluster of 8-10 homes will be grouped around a centrally located “Waste to Energy Center”, or ‘holon‘.  Each holon will include electric generation capacity sized to supply 8-10 homes designed to use an average of 7 kWh/day, or 200 … Continue reading

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Wind Power notes

Wind Turbine Manufacturers List Has brief description, history & specs for each. From http://www.power-talk.net/wind-power.html a good source of general info on AltE in general — batteries, solar, inverters, etc… I reconfigured the power predictor anemometer at SGEV yesterday, reset date … Continue reading

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Phase II Energy Efficiency specs

OMV Phase II construction will include the following: All lighting will be CFL or LED.  No incandescent lighting.  (Low Cost Option: Select fixtures to take CFL or LED, initially install CFL, replace them over time as they fail with LED. … Continue reading

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Cuna Del Angel Hydroelectric System notes

This gallery contains 15 photos.

The farm is located near Costanera km 171. Owner is Tom Nigel. The stream appears to be smaller than SGEV Rio Aguila, but higher head is available – about 100 M vs 50 at SGEV. The upper 55 meters is … Continue reading

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SGEV Utility Guidelines

Clause 3 – Utilities and Energy Plan UPDATE: Jan 30, 2014: ICE power is now available at the lower end of the property and will be extended up along the main road to the community center. As time goes on … Continue reading

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PLANNING WISELY FOR OFF-GRID LIVING

Here is an excellent article in Home Power magazine about living off-grid: HP133 p88 Toast Pancakes & Waffles: “Toast, waffles, or pancakes: Off-grid living means not that we go without the energy that we need, but that we live more … Continue reading

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