Posts Tagged ‘power’

4 December

Hurray For Kaua’i & KIUC-part I


Dear Friends, Visitors/Viewers/Readers,

KIUC (Kaua'i Island Utility Cooperative)'s 12 MW solar panels on the day of the dedication, Sep. 25, 2014

(Please click on red links and note magenta)
It is with tremendous awe and admiration that Sun Is The Future team took the trip and video recorded the Koloa Solar Dedication ceremony at Kauai, HI, on September 25, 2014. We found out that by Jan. of 2015, 80% of the peak daytime power demand at Kaua’i will be met by  solar energy and 22% of the daily average will be met by renewable energy. KIUC (Kaua’i Island Utility Cooperative) is definitely leading the way on planet earth in our transition toward Renewable Energy Age! This is especially  impressive given the fact that Hawaii is the most fossil fuel dependent state in USA. Realizing that 50% of its total economy comes from tourism and military and the finite nature of fossil fuel, Hawaii actively tries to relieve its dependence from oil so to be less vulnerable to the fluctuation in oil prices and availability. This is mainly accomplished through various goals and roadmaps set by Hawaii Clean Energy Initiative.

KIUC Team, beaming with pride, of their 12 MW installations

KIUC Communication Manager Jim Kelly (L) & Kumu Sabra Kauka (R) for dedication & blessing

Founder/Editor of Sun Is The Future, Susan Sun Nunamaker, signing solar panel at the KIUC dedication

KIUC Power Supply Manager Brad Rockwell (R) & Sun Is The Future Technical Analyst Michael Nunamaker (L) at the dedication ceremony



















During the dedication ceremony, Allan A. Smith (Chairman of the Board of KIUC) welcomed every one. Then remarks were made by:David Bissell (President and CEO of KIUC), Tulsi Gabbard (U.S. House of Representatives), Bernard Carvalho Jr. (Mayor of County of Kaua’i), Hermina Morita (Chair of Hawai’i Public Utility Commission), Sheldon Petersen (CEO of National Rural Utilities Cooperative Finance Corporation), Peter Rive (Co-founder and Chief Technology Officer of SolarCity), Mike Gabbard (Hawai’i State Senate), Wanda Kau-Shibata (Kaua’i Representative), and Gov. Neil Abercrombie.  Dedication and blessing was made by Kuma Sabra Kauka. It is easy to see the love, respect, care, and reverence the people of Kaua’l have for their land, resources, and energy.

This 12 MW, $40 million solar array project is the largest solar array in HI. Contractor is Solar City and Landowner is Grove Farm. It contains 45,360 panels and started in Nov., 2013. The project will displace 1.7 million gallons of oil annually, eliminate 35,000 tons of emissions annually, and will generate enough energy to power 4,000 homes. It is a key part of KIUC’s strategy to use renewable resources to generate at least 50% of the island’s energy by 2023. KIUC is also making sure that there is a diverse portfolio of renewable energy, utilizing not just the solar power, but also wind- , biomass, and hydro- power.

It is wonderful to see Senator Mike Gabbard’s of Hawaii (Chairman of the U.S. Senate Energy & Environment Committee for the past six years)’s excitement for this solar installation. It is understandable how Kaua’i and state of HI are able to arrive at the Solar Heaven ahead of all other states, surpassing its Hawaii Clean Energy Initiative of 2008 (goal of achieving 70% clean energy by 2030 with 30% from efficiency measures and 40% coming from locally generated renewable sources). But currently HI is at 18% renewable energy state-wide (the first bench mark for 2015 had a goal of 15% renewable energy). Of the 18% renewable energy: on the Big Island, 48.1%  from renewables; on Maui, 29.1%; Kaua’i, 18.8%; Ouaha, 11.7%.

Yes, HI is going strong with solar and other renewable energies not only because Hawaiians or residents of Kaua’i are blessed with sunshine but because of their utility such as KIUC is continually looking for ways to collaborate and encourage their state legislators to move toward Renewable Energy. Most importantly, Kaua’i is blessed with island residents who aim to live in harmony and spirit of conservation with Mother Nature. Thumb up for KIUC! Hip! Hip! Hurray for Kaua’i and KIUC! We hope all other states in USA will look toward KIUC for their shining example during our earthly transition toward a Renewable and Clean Energy Future.

~have a bright and sunny day~

gathered, posted, and uploaded by sunisthefuture-Susan Sun Nunamaker and filmed by Michael Nunamaker

More related posts:

1. A Chat With KIUC On The Solar Paradise of Kaua’i

2. Kauai Is Going Strong With Solar in 2012-Be Empowered by Going Solar

3. Kauai Leading The Way For Solar In Hawaii

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23 July

Nuance Energy Group Realizing Potential For Sun Power at California Landfills/Brownfields !


Dear Friends, Visitors/Viewers/Readers,

(Please click on red links and note magenta)

I wish I had asked a lot more questions during this particular interview with the president and founder of Nuance Energy Group, Brian C. Boguess. On July 9, 2014, above the Yerba Buena Gardens, during InterSolar North America 2014, Mr. Brian Boguess had much to share about various mechanisms in securing  rapid solar deployment in California and beyond.

Mr. Boguess started the talk by introducing SunPods Power Platform systems, (manufactured by Nuance Energy Group), which are ballasted ground-based solar racking systems for on grid and off grid solar applications. These units are made of a heavy gauge, cold rolled steel frame with a galvanized standard G-90 finish, with proprietary racking containing solar panels and inverters and power adjustable legs accommodating uneven terrain (engineered to 23 degree slope). Nuance Energy assembles these solar units off site, set units in specified site location and level each solar array, whereas certified partners finish installation of BOS (balance of system) component, wiring and connect to the grid. The wonderful thing about SunPods Power Platform units is that these units deploy and install in minutes and help to avoid prevailing wage cost (Davis Bacon Act) on municipal, government and military projects!  These self-ballasted engineering systems eliminate ground penetration and is the solar application recently proven and released (2013) by a 2-year California Energy Commission (CEC) PIER (Public Interest Energy Research) Program report on solar PV development for California closed landfills. These SunPods PowerPlatform units are modular in design, and connect to scale for large solar projects. Some of its key markets are: agriculture, remote mining operations, international export, emergency disaster preparedness, shared community solar farms and rural residential projects. Video below:

The exciting part of the conversation is in finding out from Mr. Boguess that there are 225 closed landfills in California occupying 35,000 acres of land (presently not economically viable for traditional development) with potential of becoming utility scale solar farms! Currently there are 74 landfill sites within CA producing electricity from the landfill generated methane gas in micro-turbines. There are also 1,262 contaminated sites occupying over 2 million acres in CA. Just think of all of these Solar Potential waiting to be tapped! We will be looking forward to seeing/hearing more Sun Power being tapped from these underutilized brownfields/landfills via SunPods Power Platform systems!

~have a bright and sunny day~

Gathered, written, and posted by sunisthefuture-Susan Sun Nunamaker

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11 February

Are We Moving Fast Enough Toward Solar-Wind-Water-Geothermal-Biomass?


Dear Friends, Visitors/Viewers/Readers, (Please click on red links below)

Allow me to share with you the finalized data from FERC (Federal Energy Regulatory Commission) for U.S. Energy Infrastructure Update for 2013.  Some of the key findings from Office of Energy Projects-Energy Infrastructure Update of U.S. by 2013 from FERC are presented in the two tables below:

U.S. New Generation In-Service Power Capacity During 2013, Data Made Available By FERC

1. U.S. New Generation In-Service (New Build and Expansion), Jan.-Dec. of 2013 Chart: On horizontal axis, 10 top sources of new U.S. power capacity (in 2013) are ranked in terms of Newly Installed Capacity (MW) during 2013, in the order from: 1st being Natural Gas (7,270 MW), 2nd is Solar (2,936 MW), 3rd is Coal (1,543 MW), 4th is Wind (1,129 MW), 5th is Biomass (777 MW), 6th is Water (378 MW), 7th is Waste Heat (76 MW), 8th is Geothermal Steam (59 MW), 9th is Oil (38 MW), 10th is Nuclear (0 MW).

Even though Solar’s rank of 2 is impressive from the above chart, in reality the actual solar power capacity generated during 2013 is much greater than 2,936 MW. If you’d refer to FERC’s key findings from Office of Energy Projects-Energy Infrastructure Update of U.S. by 2013 from FERC , you would realize that the 2,936 MW did not include the distributed solar (rooftop solar power systems) installed in 2013. Various sources indicated that California added more rooftop solar capacity in 2013 than in the past 30 years combined . As the distributed solar will continue to play an increasingly significant role in solar capacity generation, such data needs to be included in the calculation in the future in order to provide a more complete picture.

U.S. Total Installed Operating Generating Capacity (GW) By Dec. of 2013, Data Made Available By FERC

2. U.S. Total Installed Operating Generating Capacity By December of 2013 Chart: On horizontal axis, 10 top sources of total U.S. power capacity by 2013 are ranked in terms of Total Installed Capacity (GW) up to December of 2013, in the order from: 1st being Natural Gas (487.21 GW), 2nd is Coal (333.43 GW), 3rd is Nuclear (107.32 GW), 4th is Water (97.88 GW),  5th is Wiind (60.29 GW), 6th is Oil (47.03 GW), 7th is Biomass (15.74 GW), 8th is Solar (7.42 GW), 9th is Geothermal Steam (3.83 GW), 10th is Waste Heat (1.13 GW).

The second table above reminds us that despite how much renewable energy has grown in U.S., the total installed operating generating capacity from renewable such as solar, water,geothermal, biomass, and wind only add up to about 15% of the total U.S. installed operating generating capacity as of 2013.  Solar only represents 0.64% and wind represents 5.2% of the total U.S. installed operating generating capacity as of 2013.  Renewable Energy is still in its early stage of its evolution. In 2014 solar power is projected to have another year of record growth. To this I say: we surely need it!

Flood at Key Heaven as a result of Hurricane Wilma (Author Marc Averette, Creative Commons Attribution 3.0)

Flood of Toowoomba (Author Kingbob86, Creative Commons Attribution 2.0)











Some of my friends, acquaintances, and relatives find it puzzling why I would be so anxious while optimistic about the Solar/Renewable future.  The two tables above truly reflect my state of mind toward current state of affair: optimistic with exponential growth of Solar Capacity (table 1) while anxiously worried about millions of people who will be losing their homes as a result of climate change (this would be the case if Clean and/or Renewable Energy takes up such a small percentage of the overall total power capacity as demonstrated in table 2 above )….we need to move toward Renewable…toward Solar-Wind-Water-Geothermal-Biomass much faster….in order to avoid more of what is likely to come……for millions and millions of people on planet earth…..

Let’s maintain our optimism in moving forward. We need to optimize the most effective incentive policy to drive all Renewables forward…be it Solar-Wind-Water-Geothermal-Biomass….in order to prevent millions and millions of people in becoming homeless in the decades to come…..

~may we all have a bright and sunny day~

Written, gathered and posted by sunisthefuture-Susan Sun Nunamaker

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10 March

How Do You Measure the Power Produced by Solar Cells ?


If you are in favor of renewable/CLEAN energy, please sign the petition page showing support for FIT/CLEAN Program at Thank you.

Excellent question from more than one of our readers:  How Do You Measure the Power Produced by Solar Cells ?

To set the stage for our following two film clips, please allow me to explain what a multimeter (or multitester) is:  it is an electronic measuring instrument that combines several measurement functions (measuring voltage, current, and resistance)  in one unit.  Multimeters are available in a wide range of features, precisions,  and prices, anywhere from less than US$10 to more than US$5,000.  To find out how much the power is produced by solar cells, we need to know the voltage and current produced and the fact that power equals to the product of voltage multiplied by current.

  • voltage (unit of measurement is volt, V): electrical driving force, energy per unit charge, electrical potential difference between two points
  • current (unit of measurement is ampere, A): rate of flow of electric charge ( carried by moving electrons in a conductor such as wire or in an electrolyte carried by ions, or in a plasma by both)
  • resistance (unit of measurement is ohm, Ω): measure of the degree to which an object opposes an electric current through it
  • power (unit of measurement is watt, W): power is the rate at which work is performed or energy is converted.  In direct current resistive circuits, electrical power is calculated using Joule’s law. In the case of resistive (Ohmic or linear)loads, Joule’s law is combined with Ohm’s law (I=V/R)
  • such that R represents numerical value of ohm or resistance, I represents numerical value of ampere or current, V represents numerical value of volt or voltage, P represents numerical value of watt or power
  • Joule’s law: P= VI, so solar cell or solar module measured at 2V and 1A would produce power at 2W, solar cell or solar module measured at 3V and 2A would produce power at 6W, solar cell or solar module measured at 2V and 1mA would produce power at 2mW (note: mA=0.001A  or mA means milliA)
  • Joule’s law + Ohm’s law: P=(I2)R=(V2)/R
  • series circuit:

    Series Circuit

    the current through each of the components of the circuit is the same, voltage across the components is the sum of the voltages across each component

  • parallel circuit:

    Parallel Circuit

    the voltage across each of the components is the same and the total current is the sum of the currents through each component

  • 1. Multimeter Tutorial-Solar Schoolhouse

    2. Solar Panels-How to Test-AltE Video Tip

  • Again, thank you for your questions and comments.
  • Posted by sunisthefuture-Susan Sun Nunamaker,

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