updated solar.py to have correct units
updated solar.py to have correct units


Former-commit-id: 57b2f698ea808bb4b9f4190c4aaaf109cf42c815
Former-commit-id: 68e50cf18fdfd95216298a4fb16a9c902b30088d
dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy,dssg/wikienergy