NASA Surface meteorology and Solar Energy

NASA Surface meteorology and Solar Energy - Khakassia

Latitude 52 / Longitude 90 was chosen.

Parameters for Sizing and Pointing of Solar Panels and for Solar Thermal Applications:

**Monthly Averaged Direct Normal Radiation (kWh/m²/day)**
Lat 52 Lon 90	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual Average
22-year Average	2.18	3.40	4.44	4.74	4.65	4.79	4.85	4.68	3.74	2.97	2.18	1.66	3.69

**Minimum And Maximum Difference From Monthly Averaged Direct Normal Radiation (%)**
Lat 52 Lon 90	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Minimum	-36	-24	-42	-28	-31	-38	-39	-37	-39	-43	-38	-43
Maximum	30	20	36	29	26	39	23	34	48	44	38	40

NOTE:

Diffuse radiation, direct normal radiation and tilted surface radiation are not calculated when the clearness index (K) is below 0.3 or above 0.8.

Parameter Definition

Parameters for Tilted Solar Panels:

**Monthly Averaged Radiation Incident On An Equator-Pointed Tilted Surface (kWh/m²/day)**
Lat 52 Lon 90	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual Average
SSE HRZ	1.17	2.19	3.54	4.49	5.17	5.54	5.42	4.74	3.36	2.16	1.28	0.85	3.33
K	0.54	0.59	0.58	0.52	0.48	0.48	0.49	0.50	0.48	0.48	0.50	0.48	0.51
Diffuse	0.70	1.14	1.70	2.06	2.54	2.76	2.63	2.22	1.65	1.14	0.75	0.53	1.65
Direct	2.18	3.40	4.44	4.74	4.65	4.79	4.85	4.68	3.74	2.97	2.18	1.66	3.69
Tilt 0	1.15	2.17	3.50	4.47	5.19	5.56	5.44	4.70	3.30	2.11	1.24	0.85	3.31
Tilt 37	2.08	3.38	4.60	5.00	5.14	5.28	5.27	5.02	4.02	3.04	2.10	1.61	3.88
Tilt 52	2.28	3.59	4.67	4.80	4.74	4.76	4.79	4.73	3.99	3.17	2.27	1.79	3.80
Tilt 67	2.36	3.61	4.49	4.38	4.19	4.17	4.21	4.24	3.76	3.13	2.33	1.86	3.56
Tilt 90	2.23	3.26	3.80	3.40	3.06	2.98	3.04	3.20	3.07	2.77	2.16	1.78	2.89
OPT	2.36	3.62	4.67	5.01	5.35	5.64	5.56	5.07	4.03	3.18	2.33	1.87	4.06
OPT ANG	69.0	61.0	48.0	32.0	17.0	12.0	14.0	27.0	42.0	56.0	66.0	71.0	42.8

NOTE:

Diffuse radiation, direct normal radiation and tilted surface radiation are not calculated when the clearness index (K) is below 0.3 or above 0.8.

Parameter Definition

Parameters for Sizing Battery or other Energy-storage Systems:

**Equivalent Number Of NO-SUN Or BLACK Days (days)**
Lat 52 Lon 90	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1 day	0.73	0.68	0.62	0.67	0.86	0.84	0.95	0.86	0.94	0.91	0.97	0.85
3 day	1.39	1.53	1.45	1.69	1.85	2.20	1.93	1.91	1.82	1.81	1.83	1.67
7 day	2.53	3.07	2.60	3.29	2.73	3.30	3.64	3.24	3.13	3.43	3.24	2.36
14 day	4.61	4.17	4.34	4.93	3.85	5.76	4.50	4.52	4.20	4.58	5.28	2.97
21 day	4.88	3.91	6.03	5.55	4.68	7.48	6.40	7.01	4.51	5.45	4.74	3.58
Month	3.70	2.81	5.34	4.34	5.09	5.95	6.52	6.08	4.73	4.59	3.28	3.64

Parameter Definition

Cloud Information:

**Monthly Averaged Daylight Cloud Amount (%)**
Lat 52 Lon 90	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual Average
22-year Average	52.6	52.4	57.8	71.3	73.6	71.0	67.5	63.2	65.8	68.9	61.3	57.9	63.7

Parameter Definition

Meteorology (Wind):

**Monthly Averaged Wind Speed At 10 m Above The Surface Of The Earth For Terrain Similar To Airports (m/s)**
Lat 52 Lon 90	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual Average
10-year Average	3.79	3.67	3.36	3.48	3.21	2.78	2.60	2.84	3.19	3.59	3.87	3.92	3.35

It is recommended that users of these wind data review the SSE Methodology. The user may wish to correct for biases as well as local effects within the selected grid region.

All height measurements are from the soil, water, or ice/snow surface instead of "effective" surface, which is usually taken to be near the tops of vegetated canopies.

Parameter Definition Units Conversion Chart