Community

Have a question about solar or SunPower? Get the answer from owners and experts.

(107 Questions : 122 Answers)

Q&A for Ask and Answer category

Ask and Answer

Ask your questions. Share your answers.

 
 
« Back
 
 
Ask and Answer
 
1 answer

How do you cost-justify solar PV instead of grid electricity for water pumping?

Customer avatar
by
Solar Status: Solar Enthusiast
Connecticut, USA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about Andrew is loaded.
Additional information about Andrew could not be loaded.
I read your press release about the Castaic Lake / Santa Clarita Water Division Solar project. I'd like to get some more information, specifically how you cost-justify using solar PV instead of grid electricity. Can we use a similar approach for water pumping here in Connecticut, where we also have relatively high costs for grid electricity?
TopicBuying Considerations
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
November 14, 2014
Customer avatar
by
Solar Status: Solar Enthusiast
Connecticut, USA
Read all my Q&A
 
Please wait while more information about Andrew is loaded.
Additional information about Andrew could not be loaded.

Answers

Answer: 
Hi Andrew,

The justification is simply that the cost of purchasing solar from SunPower is lower (by a significant margin) than what Castaic Lake Water Agency would otherwise pay SCE.

SunPower structured the deal so that the annual cost escalation rate for solar is lower than the annual cost escalation rate for power from the utility. Therefore, savings are anticipated to grow over time.

Finally, a big part of the justification for CLWA was to procure solar from a vendor that could demonstrate the highest energy yield per acre, and have the financial credibility to ensure performance of the system over the next 3 decades.

Karen
Category: Ask and Answer
November 18, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

Will my design improvement idea for your C7 technology work for Sunpower?

Customer avatar
by
Solar Status: Solar Enthusiast
Loyal SunPower customer for: Under 1 year
Gender: Male
Age: 55 - 64
SunPower system: No
Antioch, CA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about Gumby is loaded.
Additional information about Gumby could not be loaded.
After studying the C7 design as it is now, I think I can suggest a very economical modification to make it dual axis. I suggest that telescopic masts be incorporated in place of the poles to tilt one end up and down with the other end as stationary to maximize exposure to the winter sun as well as summer sun. This will mean only one telescopic mast for every section that is currently supported wtih multiple poles. Maybe you can contact Alcoa to assist with its expertise in aerospace engineering.
Alcoa already has its own prototype tested at NREL back in 2010. I urge and encourage Sunpower to consult with Alcoa.
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
October 31, 2014
Customer avatar
by
Solar Status: Solar Enthusiast
Loyal SunPower customer for: Under 1 year
Gender: Male
Age: 55 - 64
SunPower system: No
Antioch, CA
Read all my Q&A
 
Please wait while more information about Gumby is loaded.
Additional information about Gumby could not be loaded.

Answers

Answer: 
Hi Gumby,

We appreciate your idea and passion for solar technology. I'll forward this over to our C7 team for consideration.

Karen
Category: Ask and Answer
November 7, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

Gaps in Monitoring

Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 55 - 64
SunPower system: No
NM
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about newmex999 is loaded.
Additional information about newmex999 could not be loaded.
On Oct 22, 23, 24 & 25th the partner monitoring website for my account shows several gaps throughout the day in power produced and cumulative energy produced. Can you please advise?
User submitted photo
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
October 25, 2014
Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 55 - 64
SunPower system: No
NM
Read all my Q&A
 
Please wait while more information about newmex999 is loaded.
Additional information about newmex999 could not be loaded.

Answers

Answer: 
Hi newmex999, if you're experiencing technical issues, please call 1-800-SUNPOWER for assistance.

Karen
Category: Ask and Answer
October 28, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
0 answers

have i to get permission from Electricity board for setup solar system?

Customer avatar
by
Solar Status: Interested in Solar
Loyal SunPower customer for: Under 1 year
Gender: Male
Age: 45 - 54
SunPower system: No
Nadiad, Gujarat, India
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about nayan is loaded.
Additional information about nayan could not be loaded.
If I purchase & setup A solar system, Have I getting a Permission from Government Electricity Board? If yes, what's process & Fees for it?
TopicBuying Considerations
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
October 9, 2014
Customer avatar
by
Solar Status: Interested in Solar
Loyal SunPower customer for: Under 1 year
Gender: Male
Age: 45 - 54
SunPower system: No
Nadiad, Gujarat, India
Read all my Q&A
 
Please wait while more information about nayan is loaded.
Additional information about nayan could not be loaded.
Ask and Answer
 
1 answer

Panels

Customer avatar
by
Solar Status: Interested in Solar
Gender: Male
Age: 65+
Sacramento, CA, USA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about twosour is loaded.
Additional information about twosour could not be loaded.
What are the advantages between X and E panels? I have a south east facing roof and plenty of space, need about a 9000kwh system? Also does cost effect the out come. Thanks
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
October 8, 2014
Customer avatar
by
Solar Status: Interested in Solar
Gender: Male
Age: 65+
Sacramento, CA, USA
Read all my Q&A
 
Please wait while more information about twosour is loaded.
Additional information about twosour could not be loaded.

Answers

Answer: 
Hi twosour,

These are excellent questions that would be best answered by your local SunPower dealer during a free in-home consultation. Every home is different and you can work closely with a local SunPower expert to design the best solar solution. Sign up for your visit today: http://bit.ly/1w9iAWH

In the meantime, check out more information and download datasheets about our panels:
X-Series: http://bit.ly/1u6gq5P
E-Series: http://bit.ly/ZZNt4f

Karen
Category: Ask and Answer
October 15, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

WHY ARE YOUR MANUALS NOT ONLINE. MY WIRELESS DISPLAY IS CURRENTLY NOT WORKING?

Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 55 - 64
SunPower system: No
Boulder, CO, USA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about DOUGERTZ is loaded.
Additional information about DOUGERTZ could not be loaded.
IF I HAD A MANUAL I COULD PROBABLY GET IT WORKING. I HAVE HAD PROBLEMS BEFORE WITH GATEWAY TRANSMITTING. I HAVE TO CALL INSTALLER AND HAVE THEM COME OVER TO GET WORKING. ALL THEY DO IS A COUPLE PROCEDURES TO DO THIS. IF MANUALS WERE ONLINE I COULD SAVE MYSELF A LOT OF WASTED TIME?
TopicPerformance & Care, performance and care, manuals
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
October 5, 2014
Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 55 - 64
SunPower system: No
Boulder, CO, USA
Read all my Q&A
 
Please wait while more information about DOUGERTZ is loaded.
Additional information about DOUGERTZ could not be loaded.

Answers

Answer: 
Hi, DOUGERTZ. I've provided your post to our Customer Service team, who will contact you directly to send you a guide for your display and walk you through it.

Karen
Category: Ask and Answer
October 7, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

June and July production less than May

Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 25 - 34
SunPower system: Yes
Antelope, Ca
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about sinusoid is loaded.
Additional information about sinusoid could not be loaded.
May was the highest production month for me this year. I know June and July were both very warn and sunny months why would the production slip? Are the panels getting too hot?
TopicPerformance & Care
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
September 28, 2014
Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 25 - 34
SunPower system: Yes
Antelope, Ca
Read all my Q&A
 
Please wait while more information about sinusoid is loaded.
Additional information about sinusoid could not be loaded.

Answers

Answer: 
Hi, sinusoid. I’ve forwarded your post to our Customer Service team, who will contact you directly.

Karen
Category: Ask and Answer
September 30, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

Can a solar system that is connected to the grid be used during a power failure?

Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 45 - 54
SunPower system: Yes
Rancho Palos Verdes, CA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about Todd is loaded.
Additional information about Todd could not be loaded.
I live in an area that experiences occasional power failures. My system is connected to the grid. I understand that the power company does not want electricity while they are working on fixing the cause of the outage but couldn't there be an electrical gate on solar systems that allows solar generated electricity to flow to the grid while the grid is working but if power shuts off, as in an outage, the solar generated electricity is shunted to the home directly so that during daylight, basic appliances can continue to operate?
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
September 18, 2014
Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 45 - 54
SunPower system: Yes
Rancho Palos Verdes, CA
Read all my Q&A
 
Please wait while more information about Todd is loaded.
Additional information about Todd could not be loaded.

Answers

Answer: 
Hi Todd,

This is a really good technical question.

Unfortunately, the solar PV system by itself cannot power loads in the home when disconnected from the grid. This is because energy generation and load must be exactly matched at all times. If not, the electrical frequency and voltage will quickly go out of normal ranges, which can damage your appliances and equipment. The solar system output cannot be controlled to match load instantaneously and if there is ever an imbalance, even momentarily, the system will shut down to protect the loads in your home from damage.

Adding energy storage to a solar PV system provides a “buffer” of energy that enables this instantaneous load matching. We are currently piloting this technology and expect to make it available to customers in the near future. Stay tuned.

Karen
Category: Ask and Answer
September 22, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

Expanding an existing 8.6 KW system that's using SPR-210-BLK-U panels

Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 45 - 54
SunPower system: No
Middletown, NY 10940, USA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about antscozz is loaded.
Additional information about antscozz could not be loaded.
I currently have a 8.6 KW grid tie system that has (41) SPR-210-BLK-U panels. The system has 1 Sunpower 4000m and 2 Sunpower 3000m inverters. I would like to purchase additional panels to expand the system to the 10 KW capacity. Is there a current panel that is compatible with the SPR-210 or must I replace an entire string to upgrade?
TopicInstallation, Solar Basics
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
September 17, 2014
Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 45 - 54
SunPower system: No
Middletown, NY 10940, USA
Read all my Q&A
 
Please wait while more information about antscozz is loaded.
Additional information about antscozz could not be loaded.

Answers

Answer: 
Hi antscozz,

I'm delighted to hear that you're interested in upgrading your SunPower system. Please contact your SunPower dealer to discuss your options.

Thanks.

Karen
Category: Ask and Answer
September 19, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
Ask and Answer
 
1 answer

Issue with new website monitoring software and Android monitoring application

Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 45 - 54
SunPower system: No
New Mexico, USA
Read all my Q&A
 in Ask and Answer category
 
Please wait while more information about nmsun is loaded.
Additional information about nmsun could not be loaded.
Ever since your upgrade, most times I cannot get my data on this website (https://monitor.us.sunpower.com/main.html#/index/dashboard/comp) I just receive a spinning circle forever and no data is returned from the server. The partner site works fine. Also, since your new Android application came out the same problem exists with that. Spinning circle and no data returned. This happens 70% of the time.
I have attached a screen shot from my pc showing this and also the inability to submit feedback from that page.

Love your applications, please get them working again.
User submitted photo
0points
0out of 0found this question helpful.
Was this helpful?helpful0unhelpful0
Category: Ask and Answer
September 4, 2014
Customer avatar
by
Solar Status: SunPower Customer
Loyal SunPower customer for: 1-3 years
Gender: Male
Age: 45 - 54
SunPower system: No
New Mexico, USA
Read all my Q&A
 
Please wait while more information about nmsun is loaded.
Additional information about nmsun could not be loaded.

Answers

Answer: 
Hi There.

We're sorry to hear that your experience has been less than stellar. We’ve provided your post to our Customer Service team, who will e-mail you directly.

Karen
Category: Ask and Answer
September 8, 2014
Customer avatar
by
Solar Status: SunPower Staff
Bay Area, CA
Read all my Q&A
 
Please wait while more information about SunPowerCommunityKaren is loaded.
Additional information about SunPowerCommunityKaren could not be loaded.
0points
0out of 0found this answer helpful.
Was this helpful?helpful0unhelpful0
2 3 4 5 next>>
2 3 4 5 next>>
Take the first step and begin saving with Solar
Get Started
 
Get $500 or donate to a good cause if you Refer a friend to SunPower®
Refer a friend now