Fluctuations 15 July 16

Fluctuations is updated throughout the day, with thoughts, corrections, and new links. Check in with us at the end of the day to see if you’ve missed anything or if you want to comment. Have a great day. 

Net Energy Metering : Growth and Accountability in the Distributed Solar Market

“Americans are installing solar photovoltaic, or PV, systems and other distributed energy resources on their homes for a host of reasons—including electricity bills, increasing property value, preventing electrical outages, acting on climate change, and keeping up with the Joneses.”

Grid-scale behind-the-meter storage tech launched by Greensmith Energy

By April Nowicki for SmartGridNews.com 
Energy storage software and integration company Greensmith Energy has launched its behind-the-meter energy storage solution, Omni4, in North America

Fluctuations 14 July 2016 – Final Edit

Fluctuations is updated throughout the day, with thoughts, corrections, and new links. Check in with us at the end of the day to see if you’ve missed anything or if you want to comment. Have a great day.
How worried are you about a…

Grid attack: How America could go dark.” via @WSJ (Subscription Required)
Today’s first interesting article, with an opening quote.
Transparent Utility Costs Key To Solar and Storage Growth
According to Lynn Jurich, one of the co-founders of SunRun and a speaker during Intersolar’s opening ceremony on Monday night, the notion that solar customers are increasing costs for other ratepayers is false. “It’s a total red herring,” she said.


“In the past two decades, alternative energies have emerged in a more sustainable way to resolve the scarcity issue of natural energy resources. However, project owners’ general perception believes that a one-time high installation cost hampers the adoption of an alternative energy system like solar power. This study investigates the effectiveness of the solar-powered photovoltaic system over the conventional and hybrid systems through a benefit-cost analysis. Benefit and cost components were quantified from the economic and environmental perspectives. An economic sensitivity analysis was then followed with three measurements such benefit-cost ratios, net present values, and profitability indices.”

Design and Development of Multilevel Inverter for Solar Power Generation

Abstract-This paper proposes a solar power generation system is composed of a dc–dc power converter and a seven level inverter. The seven-level inverter contains only six power electronic switches, which simplifies the circuit configuration. Furthermore, only one power electronic switch is switched at high frequency at any time to generate the seven-level output voltage. This reduces the switching power loss and improves the power efficiency and also reduces the Total Harmonic Distortion (THD). The voltages of the two dc capacitors in the proposed seven-level inverter are balanced automatically, so the control circuit is simplified. Simulation results show that the proposed solar power generation system generates a seven-level output voltage and outputs a sinusoidal current that is in phase with the utility voltage, yielding a power factor of unity. Index Terms- Grid-connected, multilevel inverter, pulse-width modulated inverter (PWM), MATLAB/SIMULINK,

Fluctuations 13 July 16

Fluctuations is updated throughout the day, with thoughts, correction, and new links. Check in with us at the end of the day to see if you’ve missed anything or if you want to comment. Have a great day.

Good morning,

The June issues of Buildings magazine has Solar financing article. 7 Solar Financing Mistakes and How to Avoid Them. Check it out.

From Decentralized-Energy

$1bn in potential savings identified through Boston microgrids

Here are a few important points:
Microgrid islanding capability enables local energy resiliency, and aggregating DER in a microgrid can enable easier valuation of DER costs and benefits.

Evaluating a microgrid’s return on investment requires a robust understanding of generation and load characteristics, utility structure, energy markets, regulatory environment, and risks associated with an individual project.

Following that step the team identify an ‘anchor building’ for a microgrid. The anchor building is one that demands enough energy to justify the investment in local infrastructure upgrades for establishing a microgrid. Siting a microgrid in the location of an anchor building makes an infrastructure investment palatable to the city and encourages local stakeholders to consider connecting to the microgrid. Read more HERE

Bill Introduced to Give Businesses and Homeowners a Tax Credit for Energy Storage Use

US Senator Martin Heinrich (D-N.M.), a member of the Senate Committee on Energy and Natural Resources, has co-sponsored the Energy Storage Tax Incentive and Deployment Act, a bipartisan bill to establish investment tax credits (ITC) for business and home use of energy storage.  The proposed tax incentives are modeled on the current ITCs for solar energy and apply to either large, grid-connected energy storage systems or to smaller battery systems for residential power. Home battery storage, coupled with a small wind or roof-top solar system, could be used to store energy during the day for use later in the day or during overcast skies and to help consumers reduce their energy bills.

Solar Power: For The Masses Or The Wealthy?

Residential solar, says SolarPulse, is now a financial decision, not an environmental one. SolarPulse’s data includes a measure of the “environmental orientation” of households based on their purchasing behavior and this shows that environmental concerns are becoming less of a factor. As solar prices drop, solar is actually becoming a way to save money. This is mirrored in the dropping of the credit score required to get a financed solar package.

A New Report Reveals the Impact of Installing 8 Million Solar Panels Across America

SolarCity, one of the United States’ biggest solar developers, has published a report exploring the impact of installing 8 million solar panels across America. SolarCity released its first corporate sustainability report, measuring the impact the company has had on the environment, job creation, economic development, and society. Closing in on its 10-year anniversary, SolarCity has installed more than 8 million solar panels across the United States, servicing more than 250,000 customers. The new report, SolarCity 2015 Impact Report, asks what impact it has had on the planet over that period.

Solar panels study reveals impact on the Earth

Environmental Scientists at Lancaster University and the Centre for Ecology and Hydrology monitored a large solar park, near Swindon, for a year.

They found that solar parks altered the local climate, measuring cooling of as much as 5 degrees Centigrade under the panels during the summer but the effects varied depending on the time of year and the time of day.

Read more at: http://phys.org/news/2016-07-solar-panels-reveals-impact-earth.html#jCp

That’s it friends. Have a great evening.

Fluctuations 12 July 16

Fluctuations is updated throughout the day, with thought, corrects, and new links. Check in with us at the end of the day to see if you’ve missed anything or if you want to comment. Have a great day. 


If you’re like a majority of Americans you’re paranoid about your health. You want to eat better so you get a salad with your hamburger and soda. Seriously though, you shop at organic supermarkets or at the farmers market. We’ve become more concerned about the ingredients in our foods, how fresh and healthy they are. That interest has lead to greenroofs, vertical gardens, urban farming and even chickens. The way we get our food has been disrupted just as the electric system. 
I recently read an article that said construction was second to farming in adopting new technology, specifically the paperless office. I then saw an video on drone technology’s affect on farming [http://youtu.be/HIpelnM1NBE]. When I think of farming its mostly diesel oil or bio- fuels, but what about Solar?
Well, there’s a program called the Rural Energy for America Program Renewable Energy Systems & Energy Efficiency Improvement Loans & Grants. I plan to contact them and find out what part solar plays in their program. Here


Thanks to @EnergyTech_News for this link on Drones in Solar Here

Will drones actually become part of a Solar companies arsenal, or is it a job that would be contract out. In maintenance, drones could play an essential part: faulty panels, high heat panels and BOS equipment, azimuth configurations. Do you plan to purchase a drone or contract out?

Data Centers:

Did you know that Data Centers consume 2-3% of total energy generated in the U.S.? I didn’t. And that brings up the point, that as we converge on our technological future energy consumption will increase even if the product we use consume less energy individually. Televisions require cable box, game consumes, and sound systems. Homes have their own ecosystem of electronic now, whether it’s the refridgerator or security system. And what about the EV charging system? All of these life components will be connected to the cloud, the one operating at a Data Center, near you. 


Green-e Energy Certifies Southern California Edison’s New Clean Energy Options HERE

Many you have your own opinion about Green energy pass-thru. That’s what I call them. It’s a form of deregulation, where you determine which company you want to be your servicer even though nothing changes physically. You used to pay Peter, now you pay Paul. Simple, except that Paul, which is the renewable energy vendor, is a little more expensive. But, now you have peace of mind because, technically, you’re not contributing to the profit of a company that isn’t as green as you’d like it. Enter Southern California Edison’s Green Rates Here

To add to the cornucopia of choices consumers have, Do demand charges make sense for residential customers? By Coley Girouard for SmartGrid News

Finally something really new…

Smartflower POP Harvests the Sun’s Power Easily and Efficiently

The unique-looking, easy-to-install solar system generates enough electricity to power the average middle-European household. via EcoBuilding

And finally: 

New report: Energy Efficiency Enabled by Distributed Solar PV via Conservation Voltage Reduction. Via SolarCity

Today’s Fluctuations 

Fluctuations is updated throughout the day, with thought, corrects, and new links. Check in with us at the end of the day to see if you’ve missed anything or if you want to comment. Have a great day. 
Are you ready to work with your utility?

Con Edison’s DSIP 

Con Edison’s DSIP presents its self- assessment and five-year view of the integration of Distributed Energy Resources into


Quote from the Barron’s

Twilight in Electric Utilities

“Half of electric-utility executives surveyed recently expect their industry to go into a “death spiral” within 10 years…”

Thoughts: If solar panel manufacturers increase their efficiency to at least 50% and consumer product manufacturers continue their trend toward more energy smart and nanotechnology, we may one day have an electric power surplus. What if you iPad was a sheet of glass?


As we move into a DER environment installer will have more things to consider. 

Shipping lithium batteries: Are you up to date on the requirements? 

While this type of battery is not currently in use to store residential electricity auto companies plan to convert them for use in homes. 

#Electricity Use in Rural and Islanded Communities: Summary of a Workshop | The National Academies Press

“On behalf of the Quadrennial Energy Review (QER) Task Force, the National Academies of Sciences, Engineering, and Medicine hosted a workshop on February 8-9, 2016, titled “Electricity Use in Rural and Islanded Communities.” The objective of the workshop was to help the QER Task Force public outreach efforts by focusing on communities with unique electricity challenges. The workshop explored challenges and opportunities for reducing electricity use and associated greenhouse gas emissions while improving electricity system reliability and resilience in rural and islanded communities. This report summarizes the presentation and discussion of the workshop.”