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    AltE

    3.0 (6 reviews)
    Closed 8:00 am - 7:00 pm

    Services - AltE

    Solar system installation

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    1 year ago

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    6 years ago

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    5 years ago

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    7 years ago

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    8 years ago

    Asked for a quote, was ignored. I guess some other company will get 15-20 grand from me for a complete off grid system.

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    Devlin Energy

    Devlin Energy

    (9 reviews)

    Devlin's installation of a Tesla Powerwall at our Cape Cod home succeeded but was a complicated…read more experience. Of the dozen installers Tesla recommended (after two years on Tesla's waiting list), only Devlin responded offering a quotation. Their price was compatible with the general install market (well known to be overpriced). The sales process was quick and offered us responsive opportunities to customize the installation. The move to installation planning and scheduling would have failed of its own accord due to turnover of staff and their chronically ignoring emails and voicemails. No one ever picked up a phone. Using extraordinary strategems for five months we were finally able to secure an install date but it was cancelled the afternoon before the promised date. A second promised date months later was also aborted during the afternoon before the promised date. In both cases this was because the schedulers had not secured a battery when they committed to a date. As we had already paid more than $16,000 eight months before, we had to invest more extraordinary effort to secure an install within the tax year to obtain our tax credit. When Devlin secured a battery the installation turned out to be technically and artistically excellent. We are very pleased with the result, though owners have to read up and think carefully about how to configure the Powerwall's charge/discharge configuration, which is not explained, not transparent, and not intuitive. With these caveats we conditionally recommend Devlin so long as the intending customer fully understands the lengthy and strenuous effort required to complete an install, given the marked contrast between the firm's technical and management competencies evidenced by our experience. Difficult as the experience was, we would never have been able to install the Powerwall had Devlin not bid on the project. We have corresponded with the owner who is aware of these problems and who may move to resolve them going forward.

    I will update this review as needed. I contracted and gave a…read moredeposit to Devlin for an energy system 10 months ago. The system was finally installed a week ago, after paying Devlin 95% of the total cost, but the Town inspector did not approve the installation so the system is not operational.

    AltE - solarinstallation - Updated May 2026

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