Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
calestous's profile
Calestous Juma
Calestous Juma
Calestous Juma
Verified account
@calestous

Tweets

Calestous JumaVerified account

@calestous

Professor @BelferCenter @KennedySchool @Harvard | A New Culture of Innovation: Technology, Entrepreneurship and Prosperity (forthcoming book)

bit.ly/2sG3K0T
Joined April 2009

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    Calestous Juma‏Verified account @calestous 23 Jun 2014

    #Germany produces half of its #electric power from #solar http://bit.ly/1p88JzE pic.twitter.com/GJFiKZX7lv

    4:12 AM - 23 Jun 2014
    • 113 Retweets
    • 63 Likes
    • Dr Veerle Ronsse 🏳️‍🌈 IkhwanFidz Amirul Hakim Ramli Mike The Knife Hellenic4chan محمد نذرالدين بن زالي arifmartin Global Efficient NRG TNR Gold Corp.
    11 replies 113 retweets 63 likes
      1. New conversation
      2. Attorney Simret Zeru‏ @SimretZeru 24 Jun 2014
        Replying to @calestous

        #Germany produces half of its #electric power from #solar http://bit.ly/1p88JzE  @calestous #Green

        1 reply 2 retweets 0 likes
      3. Alula H‏ @a_hailu 24 Jun 2014
        Replying to @SimretZeru

        Amazing! RT @SimretZeru: #Germany produces half of its #electric power from #solar http://bit.ly/1p88JzE  @calestous #Green

        0 replies 2 retweets 2 likes
      4. End of conversation
      1. #EndChildMarriage‏ @endorphynn 23 Jun 2014
        Replying to @calestous

        Malaysia abundant sunlight “@calestous #Germany produces 1/2of its electric power from #solar http://bit.ly/1p88JzE  pic.twitter.com/1yrVNYw8Gc”

        0 replies 1 retweet 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. khinmgmyint‏ @khinmgmyint38 28 Jun 2014
        Replying to @calestous

        @calestous odessjjiwwu2wiwwuwwwuwwucwuw2u7ijjjjjjjijjjjkjijjynjn-mmnnyuiiijjjjjhjjyyujuyyýjuhyyjujjjjjjhyyhhyuua

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Jediaz -‏ @azqq_ 23 Jun 2014
        Replying to @calestous

        @calestous @n_izzah half.wow

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Hidayat Khan‏ @Hhkhan1955Khan 23 Jun 2014
        Replying to @calestous

        @calestous @n_izzah and they say their solar panels are manufactured in Malaysia

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Pat McCormick‏ @solutist 23 Jun 2014
        Replying to @calestous

        “@calestous: #Germany produces half of its #electric power from #solar http://bit.ly/1p88JzE  pic.twitter.com/lkE1J7lCjv” bis spater dirty power

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. Dare_devil‏ @i_rystocrat 23 Jun 2014
        Replying to @calestous

        @calestous incredible! How much solar energy do they have compared to Africa?

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. 100%Naija‏ @PercentNaija 23 Jun 2014
        Replying to @calestous

        @calestous forward thinking nation move. Their infrastructure is one of a kind.

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo
      1. RICHARD J NGOWI‏ @richngowi 23 Jun 2014
        Replying to @calestous

        @calestous This is very brilliant of them.

        0 replies 0 retweets 0 likes
        Thanks. Twitter will use this to make your timeline better. Undo
        Undo

    Loading seems to be taking a while.

    Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

      Promoted Tweet

      false

      • © 2018 Twitter
      • About
      • Help Center
      • Terms
      • Privacy policy
      • Cookies
      • Ads info