Total 42 commentsLeave a comment

Attorney, Law Office of Pamela Lawton Wilson
2

Pretty advanced content that required technical knowledge of material presented to comprehend must of the presentation.

SmithGroupJJR
4

Interesting topic...reveals some insightful analysis.

Vice President, Cushman & Wakefield
4

Did get in the weeds but some surprising and interesting information to learn about solar storage and its secondary impacts (increased energy use, differing emissions).

Vice President and General Counsel, SybilSecurity
3

The research and conclusions are very interesting. That said, the speaker needs to speak more slowly and explain concepts more clearly so that audience members without a technical background can understand.

Director, Solimax Corp
5

Great presentation!

Senior Estimator, Balfour Beatty Construction
5

Very interesting cost benefit analysis of solar storage given the current interest in this product.

Arup
5

Very interesting and relevant research

Gilbane Building Company
4

Very current and appropriate for specific climates. I learned alot

Gilbane Building Company
4

Very current and appropriate for specific climates. I learned alot

Village of Pinecrest
3

Good article!

ARCHITECTURAL DESIGNER, STUDIO NABENA + PARTNERS
5

Satisfactory

Senior Architect, Arab Engineering Bureau
4

Good

President/Director of Sustainability, Accurity Valuation
4

Glad there are more solar classes for associates.

5

Very good research on the subject.

Architect, DAR
5

FRUITFUL

LEED Fellow, LEED Faculty, Professor and Area Chair: Building Energy Performance, zenerG
Pro Reviewer
2

This presentation has a lot of good information but is intended for a highly technical audience well versed in electrical concepts, utility grid issues, statistical and quantitative analysis. If you don't fit this audience profile, there will be a number of slides where you might miss the importance or the nuances of the analysis and results. You may need to do additional research or readings to understand some of the concepts referred to or technical terms used.

This is not a "how to" course.

It contains the summary of a research paper, told from the researcher's point of view. While it touches upon all the learning objectives, there is a fair amount of additional research methodology, analysis, and results in the content that can be interesting, but aren't necessary to get the points across.

Executive Director , GreenHome Institute

Prasad - At what point did we ever communicate that it was a how to course? Please let us know and we will correction our bad marketing.

Architect, Edwards + Hotchkiss Architects
5

Excellent

Director of Engineer, InSynergy Engineering, Inc.
4

Interesting topic.

Senior Charities Manager, Urban Renewal Authority
4

interesting study and informative talk

Associate, Robert A.M. Stern Architects, LLP
5

I found this to be really informative. As an architect who does primarily higher ed and institutional work, I had assumed that in-home storage would be preferred for its back-up capacity, but now have a different perspective on why one would choose not to at this time (until the storage battery systems become more efficient)

Engineering Manager, NYC School Construction Authority
4

Need to expand the study to other parts of the United States

Senior Project manager, DNA Architects, Pentland Green LLC
5

very informative

Premium Application Engineer - Energy Efficiency, Schneider Electric
5

Its excellent new concept

Intelligent Building Technology (IBT) Systems Manager, Carrier Corporation/United Technologies
4

Very enjoyable first insights...the emissons aspect was particularly educational

Project Engineer, BJ Perch Construction, Inc.
Pro Reviewer
4

A good technical presentation. Highly recommend having some understating and interest in photovoltaics and solar energy because this presentation might not make not make much sense without it. The presenter gives you a lot of information most of it isn't too hard to follow along. The course visuals also helped out to follow along, backing up the points that were made. The concept of home storage of solar generated energy seems to make sense but in this course you get a ton of information on how it works and the benefits as well as disadvantages of it. Another big topic in the course is emissions from energy generation - maybe not something that gets thought up much via solar generation.

Professor, Chairperson, Global & Local Sustainability, Daemen College
4

Interesting study- reminds us that we need to think about additional factors with energy storage and account for them in our modeling.

Construction Project Engineer, Welbro Building Corporation
3

Informative.

5

It is a very informative course!

Lead Structural Engineer , STV Inc.
5

very informative

ELECTRICAL ENGINEER, DAR
5

really good course

Senior Project Manager, The Walsh Group
4

Interesting info I wasn't thinking of

President & CEO, First Community Housing
3

Very interesting Academic study and findings

Graduate Student at North Carolina State University, Raleigh,NC, North Carolina State University
4

Good explanation and findings.

Chief Engineer, Vornado Charles E.Smith

It is very good . I see some difference in control response to load fluctuation between stored energy and power generator. Rate of Emission is also depends in combustion efficiency that is also increases due to load fluctuation. Some times maintaining fuel to air ratio is difficult during sudden demand fluctuation. Is it not possible to absorb those fluctuations from stored energy and keep the power generators to respond only for small changes in the load?

Executive Director , GreenHome Institute

"Thank you for your comment. We modeled emissions impacts using a previously-published analysis of real hourly emissions sensor data collected from U.S. power plants estimating the marginal change in emissions in kg per MWh change in power demand at various levels of total system demand. These data empirically estimate how emissions would really change if the load on the grid were to change at various times of day. That is, they account for the fact that the natural gas combustion turbines would most likely respond to changes in demand during peak hours of the year, and a mix of natural gas combined cycle and coal steam plants would respond to changes in demand during off-peak hours. They also include emissions impacts from dynamic heat/emissions rates like you describe, since they are derived from real EPA emissions sensor data. The paper documenting this emissions analysis is "Marginal Emissions Factors for the U.S. Electricity System," and is available at the site http://pubs.acs.org/doi/abs/10.1021/es300145v. Our full technical paper documents how we use these data to estimate the emissions impacts of home storage. It is available here: https://www.nature.com/articles/nenergy20171.

Regarding the potential for storage to directly coordinate with a power plant or power plants to improve their efficiency during times of fluctuating demand, we did not model this potential in our paper. Power plants simply respond to home storage as though it were a change in the net amount of load that must be served. Small batteries like those modeled in our paper (power rating of approximately 3 kW) would have be deployed on a very large scale to significantly affect the variability of the net load applied to the grid (peak load in Texas is about 70,000,000 kW). That said, there is the potential for large-scale storage installed on-site at a power plant to help improve overall plant efficiency like you describe. This is not unlike how a hybrid electric vehicle achieves greater efficiency than a pure-combustion vehicle, even though the battery never charges from the grid." Robert Fares
Ph: 540-272-8635
Email: robertfares@gmail.com

LEED Specialist, U.S. Green Building Council

Hello Abraham
Thanks for the question. The course author will respond to you directly.
Peggy

Burns & McDonnell Engineering
5

Great course!

Senior Engineer
4

Interesting, relevant topic.

Gilbane Building Company
2

Very current and appropriate for specific climates. I learned alot

Executive Director , GreenHome Institute

Edward. Thank you for your positive comment! I think you rated the course incorrectly based on that comments? Can you adjust this?

Architect, Hastings Architecture Associates, LLC
Pro Reviewer
4

This is a technical presentation on the trade-offs and benefits of storing solar generated energy in homes. Viewers should have some basic knowledge about PV use in residential applications. This is an easy to watch presentation with good graphics and clear narration. The presenter frames the discussion well in the introduction, describing how new technologies and increased demand for stored energy are current mainstream topics. The graphs and content are easy to understand with the presenters descriptive narrative. The presenter, not only talks about energy but emissions from energy generation - and the effect of stored energy. I would recommend this presentation to single family residence builders and home owners interested in PV.

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