added solar estimator notebook again
added solar estimator notebook again


Former-commit-id: e1056986b8d1f2fc22c91ff843f7bd4f516892e6
Former-commit-id: 344cd035c321b0169acdac8a656ab63c62553d02
dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy