Tampere University of Technology

TUTCRIS Research Portal

Kari Lappalainen

  1. Article › Scientific › Peer-reviewed
  2. Published

    Analysis of shading periods caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 1 Oct 2016, In : Solar Energy. 135, p. 188-196 9 p.

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Apparent velocity of shadow edges caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 15 Nov 2016, In : Solar Energy. 138, p. 47-52 6 p.

    Research output: Contribution to journalArticleScientificpeer-review

  4. E-pub ahead of print

    Characteristics of the cloud enhancement phenomenon and PV power plants

    Järvelä, M., Lappalainen, K. & Valkealahti, S., 2019, In : Solar Energy. 196, p. 137-145 9 p.

    Research output: Contribution to journalArticleScientificpeer-review

  5. Published

    Effects of irradiance transition characteristics on the mismatch losses of different electrical PV array configurations

    Lappalainen, K. & Valkealahti, S., 2017, In : IET Renewable Power Generation. 11, 2, p. 248-254

    Research output: Contribution to journalArticleScientificpeer-review

  6. Published

    Effects of PV array layout, electrical configuration and geographic orientation on mismatch losses caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 1 Mar 2017, In : Solar Energy. 144, p. 548-555 8 p.

    Research output: Contribution to journalArticleScientificpeer-review

  7. Published

    Fluctuation of PV array global maximum power point voltage during irradiance transitions caused by clouds

    Lappalainen, K. & Valkealahti, S., 18 Nov 2019, In : IET Renewable Power Generation. 13, 15, p. 2864-2870 7 p.

    Research output: Contribution to journalArticleScientificpeer-review

  8. Published

    Number of maximum power points in photovoltaic arrays during partial shading events by clouds

    Lappalainen, K. & Valkealahti, S., 2020, In : Renewable Energy. 152, p. 812-822 11 p.

    Research output: Contribution to journalArticleScientificpeer-review

  9. Published

    Operation of TUT Solar PV Power Station Research Plant under Partial Shading Caused by Snow and Buildings

    Lobera, D. T., Mäki, A., Huusari, J., Lappalainen, K., Suntio, T. & Valkealahti, S., 2013, In : International Journal of Photoenergy. 2013, p. 1-13 13 p., 837310.

    Research output: Contribution to journalArticleScientificpeer-review

  10. Published

    Output power variation of different PV array configurations during irradiance transitions caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 15 Mar 2017, In : Applied Energy. 190, p. 902-910 9 p.

    Research output: Contribution to journalArticleScientificpeer-review

  11. Published

    Photovoltaic mismatch losses caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 2017, In : Solar Energy. 158, p. 455-461 7 p.

    Research output: Contribution to journalArticleScientificpeer-review

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